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5-2

5.1

Notes on Connection of Disk Array Unit

Confirm the following items before attempting to connect the disk array unit:

(1) Connection cable

Use the provided power cord to connect the disk array unit with the power supply.

To connect the host bus adapter of the host system or the FC-AL switch with the disk array unit, be
sure to use the NEC-specified FC cable.

To connect the disk array unit with the additional disk enclosure, be sure to use the DE cable provided
with the additional disk enclosure or the NEC-specified DE cable (NF9120-SJ33E/SJ34E).

(2) Cable length limit

FC optical cable for operating the host interface at 1Gbps: Up to [500 m]

FC optical cable for operating the host interface at 2Gbps: Up to [300 m]

Содержание S1400 NF1400-SR40E

Страница 1: ... the CAUTION and WARNING statements whenever necessary NEC CONFIDENTIAL AND PROPRIETARY All rights reserved by NEC Corporation This document must be used solely for the purpose for which it was furnished by NEC Corporation No part of this document may be reproduced or disclosed to others in any form without the prior written permission of NEC Corporation 856 850537 101 A ...

Страница 2: ... without notice 3 All possible efforts are being made to create this manual but in the event that any technical or editorial errors or omissions are found contact your dealer 4 Save this manual in a convenient area even after you finished reading it 5 When transferring this unit to other person be sure to transfer this manual also 6 NEC shall not be liable for any loss or lost profits from the use...

Страница 3: ... generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense Momentary voltage drop prevention This ne...

Страница 4: ...ING Indicate there is a risk of death or serious wound CAUTION Indicate there is a risk of burn or injury Risks and necessary actions to reduce risks are indicated individually by the following symbols Indicates the risk of smoke emission or fire outbreak Indicates the risk of electric shock Indicates required general actions for operators Indicates instructions to pull out the plug of a power cor...

Страница 5: ... If dust remains adhering to an AC outlet and or plug fire may occur Do not connect the plug of a power cord to an AC outlet with a wet hand If so you may be electrically shocked While the disk array unit can accept the power of 100 240 VAC 50 60 Hz the power cord coming with the disk array unit can only accept 100 120 VAC Use 100 120 VAC 50 60 Hz when the attached power cord is used Using power o...

Страница 6: ... not some units may be broken and or you may be electrically shocked To carry or reinstall the disk array unit disconnect all cables and power cords beforehand If not some units may be broken you may be electrically shocked and or a fire may occur To install the unit in a rack observe the following guidelines 1 TMRA If installed in a rack consideration should be given to installing the equipment i...

Страница 7: ...heir vicinity in your disk array unit to inform the user that a hazardous situation may arise when operating the disk array unit Do not intentionally remove or damage any of the labels If you find any labels totally partially removed or illegible due to damage contact your sales representative ...

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Страница 11: ...The following options are provided for the disk array unit Options for NF1400 SR40E Additional FC disk enclosure NF1400 SE42E Additional FC disk drive 73 GB 10Krpm NF1400 SM413E Additional FC disk drive 147 GB 10Krpm NF1400 SM414E Additional FC disk drive 300 GB 10Krpm NF1400 SM415E Additional FC disk drive 36 GB 15Krpm NF1400 SM422E Additional FC disk drive 73 GB 15Krpm NF1400 SM423E Additional F...

Страница 12: ...evice Do not dispose of the package because it is required to return the disk array unit to the factory for its repair 2 Inspection After unpacking check that all the components listed in the table below are provided If any of the components is missed contact your sales representative Next inspect the disk array unit and accessories If any of the components is damaged contact your sales representa...

Страница 13: ...xii NF1400 SR40E 1 NEC Storage S1400 The figure above shows the unit with the front mask installed 2 Power cord x2 3 Front mask 4 User s Guide 5 Rack mount kit 6 Programs 7 Packing list ...

Страница 14: ...rmally This User s Guide also uses the following symbol Symbol Description Supplement of the text This User s Guide uses the following terms to indicate specific devices Disk array unit Indicates NF1400 SR40E Disk enclosure Indicates the additional FC disk enclosure NF1400 SE42E sold separately Disk drive Indicates the hard disk drive with dedicated tray Dummy tray Indicates the dedicated tray onl...

Страница 15: ...4 Controller 3 7 3 5 Battery Backup Unit 3 10 3 6 Power Control Card NF1400 SP03E 3 11 4 Installation and Connection Procedures 4 1 4 1 Installation and Connection Procedures 4 1 5 Connection of Disk Array Unit 5 1 5 1 Notes on Connection of Disk Array Unit 5 2 5 2 Connection of Disk Array Unit 5 3 5 3 Connection of Disk Array Unit as Additional Unit 5 7 5 4 Connection of Ethernet Cable 5 11 5 5 C...

Страница 16: ...cification of Disk Array Unit 9 1 9 2 Optional Components 9 2 9 2 1 Options for NEC Storage S1400 9 2 9 2 2 Accessories common to S1400 9 2 9 3 Environmental Conditions 9 3 9 4 Power Specification 9 3 9 5 External Dimension and Weight 9 3 9 6 Life Expectancies of Components 9 3 Appendix A Features of Disk Array Unit A 1 1 Battery Backup A 1 2 Repair Time A 1 3 Logical Disk Capacity A 2 3 1 Arbitra...

Страница 17: ...ration C 12 2 3 Confirmation of Resource Configuration C 13 Appendix D Installing Unit on Rack D 1 1 Installing New Rack mount Kit Accessory on NEC Storage Rack D 1 2 Installing Rack mount Kit Accessory on NEC Storage Rack D 5 2 1 Installation of Rails D 5 2 1 1 Angle Hole Fitting Rail D 6 2 1 2 Round Hole Fitting Rail D 12 3 Installing Unit on HP Rack D 18 3 1 Installation of Rails D 18 3 2 Insta...

Страница 18: ...on Installation and Handling of Disk Array Unit 1 1 Note on Carrying Disk Array Unit Be sure to hold the bottom the disk array unit when carrying it Hold the front or side bottom of the disk array unit if possible ...

Страница 19: ...area suffering liquid such as water and oil suffering steam area with steam and area with much moisture If so a fault or electrical shock may occur Do not install the disk array unit in an area with emission of chemical steam or an area where the disk array unit may be contact with inflammable substance If so a fault fire or explosion may occur Do not install the disk array unit in an area with mu...

Страница 20: ... VAC 50 60 Hz the power cord coming with the disk array unit can only accept 100 120 VAC Use 100 120 VAC 50 60 Hz when the attached power cord is used Using power of different voltage may cause electric shock smoke and or fire to occur Do not install the disk array unit and the power cords in an area with direct sunshine or near an apparatus generating heat such as a heater If so a fault may occur...

Страница 21: ... enter any liquid such as water into the disk array unit If so you may be electrically shocked or the unit may be defected If some liquid is entered into the disk array unit turn off the power and contact your sales representative or maintenance engineer If the disk array unit seems dry only a small amount of liquid may remain to cause the unit to be defected Do not enter foreign substances such a...

Страница 22: ...se the surface to be deformed or discolored In addition note that splaying insecticide on a surface may cause the surface to be deformed or discolored It is recommended to clean the inside of the disk array unit periodically It is because dust may be accumulated after the disk array unit is used for a long time Contact your sales representative or maintenance engineer for the cleaning of the insid...

Страница 23: ...storage do not put any substance on the disk array unit or do not place the disk array unit on an area where the unit may be dropped To use the disk array unit after storage for longer than six months it is recommended to contact your sales representative or maintenance engineer for inspection and or repair The disk array unit weighs 34 kg or more Hold the disk array unit firmly with at least thre...

Страница 24: ...he auto repair feature which automatically starts data recovery after the replacement of the defected disk drive If a single disk drive is specified as the spare disk the data in the defected disk drive can be immediately recovered in the spare disk The use of this hot spare feature as well as the auto repair feature allows the data in the defected disk drive to be automatically recovered in the s...

Страница 25: ...Spare disk PDN14 PDN14 PDN13 PDN13 PDN13 PDN12 PDN12 PDN12 PDN11 PDN11 PDN11 PDN10 PDN10 PDN10 PDN9 PDN9 PDN9 PDN8 PDN8 PDN8 PDN7 PDN7 PDN7 PDN6 PDN6 PDN6 PDN5 PDN5 PDN5 PDN4 PDN4 PDN4 PDN3 PDN3 PDN3 LDN0 RAID5 LDN0 RAID5 LDN0 RAID5 Spare Disk PDN2 PDN2 PDN2 PDN1 PDN1 PDN1 PDN0 PDN0 PDN0 Failure in PDN1 Recovery of data in spare disk Replacement of PDN 1 PDN1 works as a spare disk PDN Physical Dis...

Страница 26: ...backup units are installed and they are fully charged Number of Battery Backup Units Installed Period of Service Operating Conditions Up to 5 years Standard configuration Optional batteries not provided 24H 8 hour charging power on and 16 hour discharging power off in environment in which the ambient temperature is 25 o C Expansion configuration with optional batteries Optional batteries provided ...

Страница 27: ...ative 2 4 Management Software SystemGlobe NEC Storage BaseProduct Ver3 3 or later NEC Storage S1400 or the management software WebSAM NEC Storage Manager can be used to allow the host system to display the resources in the disk array unit in the real time mode NEC Storage Manager also enables you to set the following parameters through the host computer Setting of RAID configuration RAID 1 5 6 10 ...

Страница 28: ...ame rotational speed is required for configuring logical drives 1 Two modes 66 mode and 80 mode can be selected according to capacity efficiency The RAID types have the following characteristics Level Function Advantage Disadvantage RAID1 Mirroring High reliability High cost RAID5 Striping of data and redundant data High capacity efficiency Low speed data writing RAID6 Striping of data and redunda...

Страница 29: ...the figure above The front mask can be removed by releasing the lock with the accessory key and pulling out toward you with your hands hooked on the both sides of the mask Removing the front mask you can view the disk drives shown in the figure below 5 SHUTDOWN switch 1 POWER LED 2 SERVICE LED 3 SHUTDOWN switch 7 Ejector 1 POWER LED 2 SERVICE LED 6 Hard disk FAULT LED 5 Hard disk READY LED 4 Disk ...

Страница 30: ... or battery is replaced in the following conditions The scheduled stop procedure using the SHUTDOWN switch is not performed There are not any power supplies that are supplying power to the array controller normally 4 Disk drive dummy tray Disk drive A hard disk drive HDD with a dedicated tray is installed Dummy tray Only a dedicated tray with no HDD being installed 5 Hard disk drive READY LED gree...

Страница 31: ...Power supply PS0 2 Controller CONT0 2 Controller CONT1 1 Power supply PS1 4 Fan 4 Fan 5 Power control mechanism PCC or dummy assembly 3 Battery backup unit standard configuration 1 Power supply 3 Battery backup unit option ...

Страница 32: ...g Note that the ventilating holes are not blocked Install the disk array unit so that the ventilating holes may not be blocked If either or both of the ventilating holes are blocked the internal temperature of the disk array unit may increase to cause a fault to occur The disk array unit is equipped with four fans Even if a fan fails the air cooling conditions for the entire disk array unit are sa...

Страница 33: ...n accept the power of 100 240 VAC 50 60 Hz the power cord coming with the disk array unit can only accept 100 VAC Use 100 VAC 50 60 Hz when the attached power cord is used Using power of different voltage may cause electric shock smoke and or fire to occur 2 Power switch The power switch is used to turn on off the power of the disk array unit The disk array unit has the redundant power configurati...

Страница 34: ...See 5 5 Connection of Power Cords Use the ejector to install remove the power supply To use the ejector loosen the screw that secures the ejector When inserting the power supply into the disk array unit push it as far as it will go and then secure it with the screws Incorrect insertion may cause a power supply failure again A power supply or battery backup unit must be replaced within five minutes...

Страница 35: ...you can replace the controller even while the BATTERY BACKUP LED BAT is on 3 SVP LED green The SVP LED flashes green when the Status Monitoring processor SVP in the controller operates normally 4 DIR LED green The SVP LED flashes green when the Director Control processor DIR in the controller operates normally 5 MC ACS LED green The MC ACS LED lights when the Event Logging Tool SD card is being ac...

Страница 36: ... connection 12 LINKUP LED DL0 DL1 A LINKUP LED lights if the respective FC connector FC port for additional FC disk enclosure becomes operable to link up DL0 and DL1 LEDs correspond to DP0 and DP1 connectors respectively These LEDs flash during the self test or initialization just after power on 13 LINKUP LED HL0 HL1 A LINKUP LED lights if the respective FC connector FC port for host bus adapter b...

Страница 37: ...mally These LEDs flash during the self test or initialization just after power on 17 Ejector The ejector is used to install or remove the controller Loosen the screw before using the ejector When inserting the controller into the disk array unit push it as far as it will go and then secure it with the screws Incorrect insertion may cause malfunction ...

Страница 38: ...ckup unit must be installed on the left side See the figure above The optional battery backup unit must be installed on the right side See the figure above The batteries are not enabled unless a battery backup unit is installed at the standard battery location They are not enabled either if a battery backup unit is installed only at the optional battery location When installing the battery backup ...

Страница 39: ...r the NF1400 SR40E only 1 FAULT LED FLT LED orange The FAULT LED lights orange when the power control card fails 2 READY LED RDY LED green The READY LED lights green while the power control card is operating normally 4 NX AOC power control connector 3 UPS connector 2 RDY LED 1 FLT LED ...

Страница 40: ...ry AC power failure occurs Ask your NEC sales representative for the system configuration using UPS For the reconnection of the system after configuration ask your NEC maintenance service representative who has technical knowledge If you reconnect the system by yourself the UPS may not function normally when it is started due to a power failure thereby stopping system operation or losing data Disk...

Страница 41: ... to provide power control Example of connection Disk array unit Power control card Automatic operation controller AOC NX7x00 server NX7x00 system Interface NEC Storage AOC cable When inserting the power control card into the disk array unit push it as far as it will go and then secure it with the screws Incorrect insertion may cause malfunction F ...

Страница 42: ...heck of components in package Check the components in the package following Check of Components in Package If any component is missed contact your sales representative Installation onto the rack Install the disk array unit on the rack according to Appendix D Installing Unit on Rack Connection of host bus adapter Connect the host bus adapter according to the manual provided with the host system or ...

Страница 43: ...uding RAID type and drive assignment use the WebSAM NEC Storage Manager or contact your maintenance service representative For the parameter settings read the WebSAM NEC Storage Manager Configuration Guide Check of resource status for disk array unit Before using the disk array unit check the resource status including controller power supply battery backup unit and disk drives by using the WebSAM ...

Страница 44: ...orrect direction and at the correct angle Proper insertion allows the connector to be inserted to the mating connector smoothly without excess force If the connector cannot be inserted smoothly do not insert it by force but check the direction of the connector again Make sure that damages such as buckling dust adhesion and dirt are not found on the connector and contact before connection Treat any...

Страница 45: ... of the host system or the FC AL switch with the disk array unit be sure to use the NEC specified FC cable To connect the disk array unit with the additional disk enclosure be sure to use the DE cable provided with the additional disk enclosure or the NEC specified DE cable NF9120 SJ33E SJ34E 2 Cable length limit FC optical cable for operating the host interface at 1Gbps Up to 500 m FC optical cab...

Страница 46: ... host system Two LC LC cables or two SC SC cables and two FC conversion cables are necessary for connecting the disk array system with the host bus adapters a With the host bus adapter connectors of LC type disk array unit additional FC disk enclosure The additional FC disk enclosure is optional See Section 6 2 Addition of Disk Enclosure HSSDC HSSDC cable or DE cable FC cable LC LC cable ...

Страница 47: ...l FC disk enclosure The FC disk enclosure is optional See Section 6 2 Addition of Disk Enclosure Connect the disk array unit with the host system by using an FC cable in the following procedure Relay connector FC cable SC SC cable HSSDC HSSDC cable or DE cable FC conversion cable ...

Страница 48: ...er Supply Check that the power switch on the disk array unit and those on the host system including the host bus adapters or FC_AL switch are set to OFF and the plugs of the power cords are removed from AC outlets OFF ON ...

Страница 49: ...e the separately priced FC conversion cable NF9310 SJ10E The cable has different size connectors at the ends Push the smaller connector into the FC connector HPx for the host bus adapter of either controller CONT0 or CONT1 until a click is heard Pushing any connector excessively may injure the tip to decrease the optical intensity which will then cause malfunction to occur Connect the other end of...

Страница 50: ...ation contact your service engineer of the maintenance service representative with expert knowledge on the disk array unit To make any of the sample connections you need to connect two host bus adapters connected with the host system and two FC switches Six LC LC cables or six SC SC cables and four FC conversion cables are necessary for connecting the FC switch and host bus adapters a If the host ...

Страница 51: ...h connectors are of SC type Connect the disk array unit with the host system by using an FC cable in the following procedure FC cable SC SC cable FC switch FC conversion cable and FC cable SC SC cable FC switch FC conversion cable and FC cable SC SC cable ...

Страница 52: ...e optical intensity which will then cause malfunction to occur Connect the connector at the other end of the FC cable to the connector of the host bus adapter installed in the host system Similarly connect the other controller with another host bus adapter installed in the host system Connect the connector at one end of the FC cable to the connector for connecting the host bus adapter installed in...

Страница 53: ...le SC SC cable NF9310 SJ0xE Push the connector so that it clicks securely The connector at an end of the FC cable SC SC cable NF9310 SJ0xE is the same as that at the other end Either of the connectors may be connected to the relay connector Similarly connect the other controller to the FC switch Connect the connector at one end of the SC SC cable to the connector for connecting the host bus adapte...

Страница 54: ...t system on which the management software WebSAM NEC Storage Manager is installed to Ethernet Regard as LAN cables for NEC Storage Manager or maintenance PC Use straight STP cable in case that controller and PC are connected through a hub and so on Use cross STP cable in case that controller and PC connected directly STP Shielded twisted pair Only connecting the Ethernet cable to the controller ca...

Страница 55: ...ken fire may occur and or you may be electrically shocked Be sure to use the power cords provided with the disk array unit Connect the power cords in the following procedure The disk array unit has the redundant power configuration to prevent the entire unit from shutting down due to a single failure Therefore connect two power cords to the power supplies when operating the disk array unit 1 Check...

Страница 56: ...power cords according to the procedure below As shown in the right figure below move the clamp in the direction indicated by the arrow and firmly secure the clamp near the root of the plug NOTE Power cord disconnection procedure If the clamp is loosely locked the power cord may come off To prevent this problem firmly secure the AC cable clamp near the root of the power cord As shown in the figure ...

Страница 57: ...et with earth terminal for the connection as shown in the figure below While the disk array unit can accept the power of 100 240 VAC 50 60 Hz the power cord coming with the disk array unit can only accept 100 120 VAC Use 100 120 VAC 50 60 Hz when the attached power cord is used Using power of different voltage may cause electric shock smoke and or fire to occur F ...

Страница 58: ...d or fire to occur Store the product in the package during storage Up to 15 additional disk drives can be installed in the disk array unit In the standard configuration no disk drive is installed in the disk array unit Therefore you have to install at least three disk drives in slots 0 through 2 For NF1400 SR40E NF1400 SM413E Additional FC disk drive 73GB 10 000 rpm NF1400 SM414E Additional FC dis...

Страница 59: ...al to or greater than that of the failing disk The rotational speed of the spare disk is equal to or faster than that of the failing disk If your disk array unit contains disks of different capacities or different rotational speeds you should define a spare disk matching the capacity and rotational speed of each disk in order to clarify disk management Up to 32 spare disks can be installed for the...

Страница 60: ...ull out the dummy tray Be sure to keep removed dummy trays in the safe place After removing an additional disk drive from the unit be sure to install a dummy tray into the slot If using the unit without a dummy tray being installed cooling effect on the disk drives lowers and causes heat generation Heat generation increases the failure rate and at its worst it may cause data loss ...

Страница 61: ... the end securely push down the ejector opened upward to click for locking When inserting the disk drive into the disk array unit push it as far as it will go and then lock the ejector Incorrect insertion may cause malfunction The disk array unit cannot use the disk drive only if the disk drive is installed additionally Provide the proper setting for the disk drive by using the NEC Storage Manager...

Страница 62: ...ally installed in NF1400 SR40E write down check marks at the locations in which the disk drives are installed which appears in the area to the right of the model number field If the model number of disk drive additionally installed does not appear in the model number field enter the last three digits of model number in NF1400 SM E field as follows When installed NF1400 SM413E enter 413 When instal...

Страница 63: ...orage The disk array unit can contain up to 15 disk drives in standard mode To increase the capacity of the disk array unit install an additional FC disk enclosure for adding disk drives The NF1400 SR40E can contain up to three additional FC disk enclosures NF1400 SE42E with which up to 60 FC disk drives can be installed Product name Additional FC disk enclosure Model number NF1400 SE42E Make back...

Страница 64: ...FC disk enclosure until a click is heard Similarly connect the FC connector DP0 for the additional FC disk enclosure of the other controller 1 CONT1 installed in the disk array unit to the FC IN connector on adapter 1 ADP1 of the additional FC disk enclosure 3 Connection between additional FC disk enclosures Use the FC cable HSSDC HSSDC provided with the additional FC disk enclosure or the separat...

Страница 65: ...itches on both adapters in the first additional FC disk enclosure that is connected to the controller via the FC cable HSSDC HSSDC If you have installed additional FC disk enclosures set the ENC ID switches on both adapters of each additional enclosure to 1 2 and then 3 in the connection order If you set different values for the ENC ID switches on the right and left adapters of an FC disk enclosur...

Страница 66: ...closure is factory set to 0 The setting must be changed for the additional FC disk enclosure to be connected to the disk array unit Set a new ENC ID according to the ENC ID switch setting above If you start up the system without setting a new ENC ID disk drive data in the disk array unit may be destroyed 5 Installation of additional disk drives Install the additional FC disk drives you have purcha...

Страница 67: ...ceptacle of the power cord coming with the additional FC disk enclosure into the power plug of power supply and secure it with power cord stopper NOTE If the shape of the power cord stopper of the power supply for additional FC disk enclosure is different from the figure above connect the power cord according to the procedure described in Section 5 5 ...

Страница 68: ...ause electric shock smoke and or fire to occur The disk array unit cannot use the disk enclosure only if the disk enclosure is installed additionally Provide the proper setting for the disk enclosure through the maintenance PC using WebSAM NEC Storage Manager Or contact the service engineer of the maintenance service representative with the expert knowledge See Appendix C for how to use the mainte...

Страница 69: ...r switch on the disk array unit is ON For the NF1400 SR40E Product name Optional battery Model number NF1400 SZ01E Note the following point on adding two optional batteries for two power supplies of the disk array unit at the same time during operation Confirm that the standard battery backup unit in each power supply of the disk array unit is fully charged in normal state Ready state You can conf...

Страница 70: ...e added OFF ON 2 As shown in the figure below remove the power cord stopper to release the power cord and disconnect the power cord from the power plug NOTE If the shape of the power cord stopper of the power supply is different from the figure above disconnect the power cord according to the procedure below ...

Страница 71: ...ck remove the AC cable clamp from the power cable 3 Loosen the screw that secures the power supply to which an optional battery is to be added 4 Put your finger onto the ejector s protrusion and pull it forward 5 When the ejector turns 90 degrees pull out the power supply Screw EXTENSION Cable clamp Release Catch ...

Страница 72: ...ery connector into the power supply connector until it is locked Standard battery Optional battery Battery backup unit When installing a battery backup unit in the power supply insert the connector as far as it will go Incorrect insertion may cause a power failure or battery backup unit failure 8 Install the BBU GUIDE removed in step 7 on the power supply Insert the three points on the end of the ...

Страница 73: ... battery into the slot as far as it will go 12 Push the ejector s protrusion to turn the ejector to the down position and insert the power supply 13 Tighten the screw that secures the ejector When inserting the power supply into the disk array unit push it as far as it will go and then secure it with the screw Incorrect insertion may cause a power failure 14 Push down the power cord stopper to the...

Страница 74: ...p is loosely locked the power cord may come off To prevent this problem firmly secure the AC cable clamp near the root of the power cord 16 Using the WebSAM NEC Storage Manager confirm the status of the battery backup unit containing the added optional battery Make sure that the battery backup unit is fully charged and is in Ready state 17 When you finish the confirmation take steps 1 to 16 for ad...

Страница 75: ... additionally installed optional batteries write the model number of the optional batteries and put a circle indicating the additional installation Write the last three digits of the model number as shown in the figure and put a circle in the right field NOTE The figure above shows an example of writing to the option label when the optional battery NF1400 SZ01E has been additionally installed in t...

Страница 76: ...re to occur Store the product into the shipping package during storage The disk array unit can contain an additional power control card The scheduled stop procedure can be performed in remote mode by additionally installing the power control card for connection with the host power control unit and controlling the disk array unit through the host power control unit The power control card can be add...

Страница 77: ...ummy assembly to the rear of the disk array unit Be careful not to lose the screw 2 Install the power control card in the disk array unit Push in the power control card along the rail and firmly secure it with the screw you removed in step 1 Screw Dummy assembly ...

Страница 78: ...C Use of Maintenance PC 5 Connect the disk array unit to the host power control unit The host power control unit UPS or NX AOC to be supported depends on your system configuration Ask your sales representative for the host power control unit For the usage of the host power control unit see the instruction manual provided with the host power control unit 6 Write to the option label A label to which...

Страница 79: ...sk access operation is indicated on the host system do not give vibrations and shocks to the disk array unit Because the disk array unit is a precision device it shall not be subject to hard vibration or shock The features of the disk array unit are effective only for the hardware failure e g the hard disk is physically damaged or inoperative The software failure e g the data is lost or rewritten ...

Страница 80: ...le failure Therefore when turning on the disk array unit turn on all the power switches of the disk array unit and additional FC disk enclosures at the rear of the unit When turning on the power switches confirm that the POWER GOOD LED green of the power supply and the POWER LED green on the front panel of the disk array unit and the additional FC disk enclosure go on Power supply starts and the P...

Страница 81: ... the data remaining in cache memory in the disk array unit onto the disk drive according to the following procedure Then turn off the AC power according to the procedure explained in 3 Turning off AC power 1 Turn off the power of the host system and the host bus adapter or the FC AL switch Alternatively offline all the paths connected to the host system that is connected with the disk array unit 2...

Страница 82: ...e of DynamicDataReplication in Appendix A Features of Disk Array Unit When the host system is shut down it writes the remaining cache data into the disk array unit The cache data remaining in this host system is written into the disk array unit Before turning OFF the power confirm that no cache data remains on the host system and no data remains in the cache memory on the disk array unit To check ...

Страница 83: ... the additional FC disk enclosure at the same time The disk array unit has the redundant power configuration to prevent the entire unit from shutting down due to a single failure Therefore when turning off the disk array unit turn off all the power switches of the disk array unit and additional FC disk enclosures at the rear of the unit Be careful that data may be lost if you turn off the addition...

Страница 84: ...t system after changing the LD configuration 7 4 Spare Disk Setting Procedure Spare disk can be set only in RAID type 1 5 6 10 or 50 Set the spare disk by using the WebSAM NEC Storage Manager or contact the service engineer with expert knowledge in your service representative for setting of the spare disk When you change a failing disk to a spare disk confirm the following to get the spare disk to...

Страница 85: ...tlets Then ask your sales representative or maintenance engineer to inspect and repair the disk array unit immediately Using the disk array unit as it is may cause electric shock or fire to occur The user must never repair the disk array unit because it is dangerous CAUTION Note that your fingers may not be caught or hit on some object when you work with inside of the disk array unit If a fault oc...

Страница 86: ...n of the host bus adapter connected with the FC cable does not light Cause Countermeasures The FC cable is not connected correctly Insert the connector of the FC cable until a click is heard See Chapter 5 Connection of Disk Array Unit The length of the FC cable exceeds the rating value See Chapter 5 Connection of Disk Array Unit The setting of the host bus adapter or that of the FC AL switch is no...

Страница 87: ...t correctly according to the User s Guide of the host bus adapter or FC AL switch the host system and additionally installed peripherals The used host bus adapter is unavailable for the disk array unit Use the host bus adapter available for the disk array unit Contact your sales representative if unknown The disk array unit is installed in an area in which it easily suffers vibration and or shocks...

Страница 88: ...ponding battery backup unit is defected Identify the defected unit with WebSAM NEC StorageManager The FAULT LED on the power control card lights orange The power control card with the FAULT LED being on is defected The SERVICE LED on the additional FC disk enclosure lights orange and also the FAULT LED on the disk drive lights orange The disk drive with the FAULT LED being on is defected The SERVI...

Страница 89: ...ment procedure 1 Identify the defected controller with the FAULT LED on the controller being lit Remove all the cables connected to the defected controller Write down the connections between the cables to be removed and the mating connectors 2 Loosen a screw securing the ejector of the target controller 3 Put your finger on the protrusion of the ejector and pull the ejector toward you Open the eje...

Страница 90: ...hich are holding memory cards on the defected controller and remove memory cards Put the memory cards along the rail on the memory connectors of the spare controller and push it firmly so that the levers at the both ends go into the notches of the memory cards ...

Страница 91: ...t of the defected controller In case that there is no DIP switch located at A4F2 only one DIP switch which is located at A1N2 should be set 6 Open the ejectors of the controller for replacement insert the controller into the slot to the end securely DIP switches Location A1N2 and A4F2 ...

Страница 92: ...hen secure it with the screws Incorrect insertion may cause malfunction If the controller is replaced with new one the system starts using the IP address specified for new controller To connect with maintenance PC and NEC Storage Manager via Ethernet perform the following procedure For maintenance PC connect by using the default IP address For NEC Storage Manager via Ethernet shutdown the NEC Stor...

Страница 93: ...r control card is logically connected to the host power control unit online state logically disconnect the disk array unit offline state For the method to change to the offline state see the instruction manual provided with the host power control unit 2 Disconnect all the cables from the power control card At this time take notes of the correspondence between the cables and connectors 3 Remove the...

Страница 94: ...e host power control unit in step 1 offline state logically connect the disk array unit again online state For the method to change to the online state see the instruction manual provided with host power control unit When inserting the power control card into the disk array unit push it as far as it will go and then secure it with the screws Incorrect insertion may cause malfunction If you replace...

Страница 95: ... the SERVICE LED on the disk array unit lights orange In addition the POWER FAULT LED on the power supply lights orange The defected power supply may be replaced with the other power supply remaining ON Replacement procedure 1 Check the defected power supply by the POWER FAULT LED of the power supply 2 Set the switch of the defected power supply to OFF OFF ON 3 As shown in the figure below remove ...

Страница 96: ...lock remove the AC cable clamp from the power cable 4 Loosen the screw that secures the ejector of the defective power supply 5 Put your finger onto the ejector s protrusion and pull it forward 6 When the ejector turns 90 degrees pull out the defective power supply Fixing screw Ejector Cable clamp Release Catch ...

Страница 97: ... additionally installing a battery backup unit A replacement or additional battery backup unit must be of the type used in the standard configuration The standard battery backup unit must be installed on the left side See the figure above The optional battery backup unit must be installed on the right side See the figure above The batteries are not enabled unless a battery backup unit is installed...

Страница 98: ...he power cord is removed from the power plug 13 While the ejector is open at the up position insert the replacement power supply into the slot as far as it will go 14 Push the ejector s protrusion to turn the ejector to the down position and insert the power supply 15 Tighten the screw that secures the ejector When inserting the power supply into the disk array unit push it as far as it will go an...

Страница 99: ...per of the power supply is different from the figure above connect the power cord according to the procedure below As shown in the right figure below move the clamp in the direction indicated by the arrow and firmly secure the clamp near the root of the plug NOTE 17 Turn ON the power switch on the new power supply If the clamp is loosely locked the power cord may come off To prevent this problem f...

Страница 100: ...nit Replacement procedure 1 Remove the power supply containing the defective battery backup unit and remove the battery backup unit See 8 5 Failure of Power Supply 2 Install the replacement battery backup unit in the power supply and install the power supply in the disk array unit See 8 5 Failure of Power Supply If a failure occurs while optional batteries are installed it cannot be determined whe...

Страница 101: ...ement job as quick as possible Do not operate the disk array unit for a long time in the state that the disk drive is pulled out Replace the defected disk drive with a disk drive having the same storage capacity and rotational speed Replacement procedure 1 Check the defected disk drive with the Hard Disk FAULT LED on the disk drive being on 2 Lift the ejector of the defected disk drive toward you ...

Страница 102: ... label provided with the replacing disk drive and then put the label on the replacing disk drive Location label 4 With the ejector of the new disk drive opened engage the guides on the top and bottom faces of the disk drive with the guide grooves on the disk enclosure and insert the disk drive to the end slowly ...

Страница 103: ... be started automatically If the auto repair feature is set to OFF issue a recovery instruction from the management software in manual mode to start recovery Otherwise the reduced state reduce shown as the logical disk status remains Setting the auto repair feature to ON in recovery wait state does not start recovery The setting is enabled starting with the next recovery 7 The disk array unit oper...

Страница 104: ...nd Manufacturing Numbers The type name and manufacturing number of the disk array unit are shown at the locations in the figure below Unit label Manufacturing number label of controller Manufacturing number label of basic enclosure ...

Страница 105: ...8 21 Manufacturing number label of power supply Manufacturing number label of battery backup unit ...

Страница 106: ...ftware should be installed to protect the product from computer viruses For details see the User s Guide 8 10 Preparation before Phone Call When you have any question or desire to contact us on the occurrence of a fault or error on the unit do the following preparations before calling us Write down the failure or fault status and questions Write down the configuration of the peripherals connected ...

Страница 107: ...ached the end of its useful life Unit damaged by a natural disaster e g earthquake lightning or fire or by an external factor e g incident 1 To use the disk array unit that has reached its service life be sure to make a hardware maintenance contract and get the disk array unit to be overhauled at a cost 8 13 Disposal of Disk Array Unit The disk array unit uses lead batteries You should dispose of ...

Страница 108: ...ow shows the basic specification of the disk array unit Maximum disk drives per unit 15 Hot spare feature Provided Host interface specification FC AL Fablic Point to Point Optical Data transfer rate of host interface 200 MB S or 100 MB S Disk drive interface specification FC AL Copper ...

Страница 109: ...1E Rack mount kit 1 For HP new type rack NF9100 SK02E Rack mount kit 1 For Sun StorEdge rack NF9100 SK03E Rack mount kit 1 For NEC Express old type rack NF9120 SJ33E DE cable 1 HSSDC HSSDC cable 3m x2 NF9120 SJ34E DE cable 1 HSSDC HSSDC cable 5m x2 NF9310 SJ01E FC cable 1 SC 5m x 2 NF9310 SJ02E FC cable 1 SC 10m x 2 NF9310 SJ03E FC cable 1 SC 20m x 2 NF9310 SJ04E FC cable 1 SC 50m x 2 NF9310 SJ10E...

Страница 110: ...0 VAC 10 x2 50 60 Hz Maximum power consumption 680 VA Additional disk enclosure 520 VA While the disk array unit can accept the power of 100 240 VAC 50 60 Hz the power cord coming with the unit can only accept around 100 VAC Use 100 VAC 50 60 Hz when the attached power cord is used 9 5 External Dimension and Weight The table below shows the external dimension and weight of the disk array unit Disk...

Страница 111: ...in magnetic tapes 1 At the first start the SERVICE LED repeats 5 sec flashing 7 sec OFF The disk array unit is not started normally 2 The controller shows the following FAULT code 02438413 3 The disk array unit is started normally by turning the array controller off once and then on again 4 It takes eight hours to charge battery at the longest 2 Repair Time The repair time is set to 12 hours in de...

Страница 112: ...ach host HBA or each port The use of the access control feature enables the division of logical disks into logical disk groups The division extends the flexibility of the system configuration The feature also ensures data protection and security protection by limiting access to each host HBA or each port The following specific software separately priced is necessary for using the access control fe...

Страница 113: ...val of logical disks accessible from host HBA 5 Dynamic Data Replication This feature creates the replication of a logical disk in a single unit To create the replication the source logical disk must have the same capacity as the destination disk This feature is available only on NEC Storage S1400 To use this feature the specific software SystemGlobe DynamicDataReplication NEC Storage S1400 sold s...

Страница 114: ...occurs while Dynamic Data Replication is used A controller is replaced The holding of cache memory data by the battery backup unit in power off state exceeds the specified time Activity State Sync State Pairing state Separate Separated Entire difference No status change Sep SYNCING Change to fault state and abort of copy operation Replicate Rep SYNCING Entire difference Replication retried automat...

Страница 115: ...rogram product is required For S1400 SystemGlobe NEC Storage BaseProduct Ver3 3 or later NEC Storage S1400 To use the disk array unit release the license lock using the license code that is provided with SystemGlobe NEC Storage BaseProduct Ver3 3 NEC Storage S1400 A maintenance person is responsible for releasing the license lock of SystemGlobe NEC Storage BaseProduct Ver3 3 NEC StorageS1400 durin...

Страница 116: ...usage refer to the User s Guide provided with the software Before the access control feature can be used on this disk array unit the license lock must be released by using the license key provided with the software You can release the license lock and make settings by yourself NEC maintenance service representative provides the installation service additionally charged for releasing the license lo...

Страница 117: ...xt system startup with fully discharged battery will be reduced drastically The delay time will be approx ten seconds per 1TB of difference So it is recommended to run shutdown process when you turn off the power of this disk array unit F ...

Страница 118: ... RAID type Select the RAID type carefully because it has certain influences on system performance and capacity See Section 2 6 RAID Configuration for details The LD bind requires the specification of capacity The specified capacity defines the number of logical disks in a single POOL Select the capacity carefully because the unused area remaining may affect the performance on the capacity See 3 Lo...

Страница 119: ...rer Version 5 0 or higher 2 Connect the PC to the disk array unit in the one to one mode Connection via a hub may be possible However because the IP address and subnet mask are fixed the connection to such an environment as LAN may cause a malfunction to occur Use shielded cables for the connection 3 Set the PC on network 10 1 0 xxx 255 255 255 0 xxx Decimal number 1 254 except for 10 11 For the s...

Страница 120: ...ide of the screen become available Notes 1 Because the IP address and subnet mask of the MNT s Ether port are fixed as described above do not connect the port to any LAN and WAN 2 The amber LED to the right of the Ether port is lit However this does not indicate the occurrence of an error It is lit in the TCP connection state 3 Action taken when the Maintenance PC is not connectable Check if The I...

Страница 121: ...C 3 Startup menu of Maintenance PC Select Option Enter C in 1 Password The browser is updated Uppercase letters must be entered ...

Страница 122: ...n 1 2 1 Port Configuration Select 4 Configuration 4 Port Configuration Then set the following items Port Port position Host type Host type to be selected from the pull down list Click the SET button to determine the selection 00 Default 01 ACOS4 80 Windows 88 Solaris 89 Linux 8A AIX 8B NX 8D SX ...

Страница 123: ...ct 2 or 3 Mode Indicates the bit meaning on the screen with a hexadecimal number The following two modes can be set currently Set either one Host Director Port 0000 Replication Director Port 0040 Switch Provide setting for Switch See Table 1 2 2 for the rule on loop ID assignment See Table 1 2 1 for the relation between the switch setting value and AL_PA Data Rate Set the data rate of the FC link ...

Страница 124: ...4B 4A 49 47 46 45 43 3C 3A 39 36 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E 4F 50 51 52 53 54 55 56 57 58 59 5A 5B 5C 5D 5E 5F 60 61 62 35 34 33 32 31 2E 2D 2C 2B 2A 29 27 26 25 23 1F 1E 1D 1B 18 17 10 0F 08 04 02 01 00 63 64 65 66 67 68 69 6A 6B 6C 6D 6E 6F 70 71 72 73 74 75 76 77 78 79 7A 7B 7C 7D 7E 7F If an AL_PA value having been set cannot be acquired due to incorrect setting set the SWITCH valu...

Страница 125: ...urs Windows Solaris Linux AIX Basic value 10h Increment by one if loop duplication occurs Miscellaneous Conforms to the rule in the server if any The basic value is 10h if no rule is defined in the server Increment by one if loop duplication occurs The rule above may be changed depending on the system configuration in the user side Set the controller s AL PA that must be different from the AL PA o...

Страница 126: ...tion 6 Resource Configuration to set the following items When there is no configuration information in the system disks initial state in case LAN cable is connected with CONT 0 When there is configuration information in the system disks After operation ...

Страница 127: ... mode 0 No present 1 UPS only 2 UPS AOC 3 UPS AOC SCBI NF1400 SR40E Select 0 if optional NF1400 SP03E is not installed Select 2 if optional NF1400 SP03E is installed NF1400 NR40E Select 0 if optional NF1400 NP03E is not installed Select 2 if optional NF1400 NP03E is installed PS 48V Checked at the time of 48V power supply use Product Name Serial Number Port WWN When it is judged that there is no c...

Страница 128: ...n View Up to three additional FC enclosures NF1400 SE42E can be connected to NF1400 SR40E in DE04 DE08 and DE0C Up to three additional FC enclosures NF1400 NE42E can be connected to NF1400 NR40E in DE04 DE08 and DE0C ...

Страница 129: ... of the deselected port s to set them to offline Next check the port s to be selected newly to set them online Set the on off status of the host ports on the CONT card Port On Off Switch Feature of Port On Off with host Only mounting ports appear CONT0 HP0 CONT0 HP1 CONT1 HP0 CONT1 HP1 Remove the check of port to be deselected and click SET Offline Add the check of port to be selected and click SE...

Страница 130: ...ws Port Port name setting value Host Type Host type setting value Link Attach Setting value for Topology of Link Switch Setting value for Switch Data Rate Setting value for Data Rate on FC Link Port Name Port name setting value AL_PA AL_PA status value NPORT ID NPORT ID status value Mode The set information is displayed with characters Node Name factory setting Format defined in the specifications...

Страница 131: ...tus with differently colored graphics Need for maintenance Red During state transition Yellow During normal operation Green Not installed White Notes 1 If the resource is not Ready check Control Condition DE Condition and PD Condition for details 2 If the resource is not installed you need to make the setting with Resource Config 3 Before the Base Product License key is unlocked CONT is in the FAU...

Страница 132: ...he following procedures supposes that a rail is installed on the left part of a rack when the rack is viewed from its front The left and right rails are different from each other Use the correct rail when installing it on the rack See the figure below For each rail assume the face with the inner as the rear see the figure below Upper Rail R Lower Rail L Rail L Front Rear Inner ...

Страница 133: ...tions of the rail are set on the hole at the side in front of the rack An attached installation screw is tightened in the bottom screw hole and a rail is fixed When 2 screws are attached use the screw lower right figure Set acrew Set acrew Insert 1U partition mark 1U partition mark ...

Страница 134: ... projections into the angle holes 3 With the inner held push the two set screws with a part for cable clamp into the female screws of the rail support and drive the screws equally Take note on the direction of the part for cable clamp Insert Inner Drive equall ...

Страница 135: ...section on the rails and push it into the rack NOTE The unit is very heavy Be careful not to drop it while lifting Fasten four set screws at two left and two right points on the front of the unit The figure below only shows the right part of the unit Fix the left part of the unit similarly Set screws Set screws ...

Страница 136: ... on the left part of a rack when the rack is viewed from its front There are two types of rails one for angle holes on a rack and the other for round holes See the proper procedure depending on the type of the rail you use Install a rail on the right part of the rack in the similar procedure The left and right rails are different from each other Use the correct rail when installing it on the rack ...

Страница 137: ... rail support attached When a rail is installed on a rack with angle holes use the rail as the rail support remains attached After loosing the screws make sure that the moving part of the rail can slide smoothly NOTE Do not remove the flush screws 2 Remove the flush screw 1 enclosed by a circle in the figure below ...

Страница 138: ...e below with the flush screw removed in step 2 loosely Make sure that the moving part of the rail can slide smoothly 4 Insert the top and bottom projections into the angle holes on the front of the rack Bracket Insert Enlarged view of encircled part ...

Страница 139: ...f the rack with the screw holes of the rail and fix the rail with the attached set screws Use the set screw see the figure below 6 Pull the inner toward you and push the top and bottom projections into the angle holes Set screw Inner Insert Insert ...

Страница 140: ...ws with a part for cable clamp into the female screws of the rail support and drive the screws equally Take note on the direction of the part for cable clamp Drive the four flush screws loosened in step 1 and removed in step 3 securely Drive equally ...

Страница 141: ... On the right side of the rack install the other rail in the same procedure 9 Install the rack nut at the position shown in the figure below or the first hole on the projection at the top of the rail Rack nut ...

Страница 142: ... the rack NOTE The unit is very heavy Be careful not to drop it while lifting 11 Fasten four set screws at two left and two right points on the front of the unit The figure below only shows the right part of the unit Fix the left part of the unit similarly Insert Set screws ...

Страница 143: ...the other two on the rear Each rail has a rail support attached When a rail is installed on a rack with round holes remove the rail support from the rail 2 Loosen four flush screws at the rear side of the rail After loosening the screws make sure that the moving part of the rail can slide smoothly NOTE Do not remove the flush screws Remove Remove ...

Страница 144: ...ush screw 1 enclosed by a circle in the figure below 4 Install the attached bracket see the figure below with the flush screw removed in step 3 loosely Make sure that the moving part of the rail can slide smoothly Bracket ...

Страница 145: ...ce with the label and fix the rail to the rack with the attached set screws Use screws see the figure below 6 Pull the inner toward you and with it held insert the two set screws with a part for cable clamp into the female screws of the inner and drive the screws equally Take note on the direction of the part for cable clamp Drive equally Set screw ...

Страница 146: ...D 15 Drive the four flush screws loosened in step 1 and removed in step 3 securely 7 On the right side of the rack install the other rail in the same procedure ...

Страница 147: ...n the figure below or the hole just above the set screw the first hole of the top of the rail 9 Lift the unit put the rear section on the rails and push it into the rack NOTE The unit is very heavy Be careful not to drop it while lifting Rack nut Insert ...

Страница 148: ...17 10 Fasten four set screws at two left and two right points on the front of the unit to fix the unit The figure below only shows the right part of the unit Fix the left part of the unit similarly Screws ...

Страница 149: ... the NF9100 SK01E rack mount kit is to be separately purchased Ask your sales representative for details The procedure explained in this section covers the rail installed to the left side of the rack when viewed from the front of it The same procedure is applied to the right rail 1 Slightly loosen the four flush screws at the rear of the rail Flush screw ...

Страница 150: ...of the unit and engage the hook with the cutout NOTE Two cutouts are provided one is for new rack and the other is for old rack The outer cutout should be used for the new rack while the inner cutout for the old rack 3 Pull the rail toward you and insert the rivets on the rail into the round holes on the rack Cutout for new rack Cutout for old rack Hook Rivets ...

Страница 151: ...While holding the rail tighten the set screw M4 screw 5 Move to the rear of the rack First while pulling the rail toward you screw the set screw M5 screw into the lower female threaded hole Set screw Set screw ...

Страница 152: ...e the fixture where the cable tie has been passed through to the rack by screwing the set screw M5 screw into the upper female threaded hole 7 Firmly tighten the four flush screws Set screw Fixture Cable tie Flush screw ...

Страница 153: ...uts Move to the front of the rack and push one rack nut into the round hole which corresponds to the cutout on the rail from the side Then push another rack nut into the fifth round hole from the top as well Cutout Rack nut Rack nut ...

Страница 154: ... Lift the unit and place the rear section on the rails and push the unit toward the innermost of the rack NOTE 3 Screw four set screws M5 screws in the unit at both sides to fix the unit The unit is very heavy Be careful not to drop it while lifting This completes the installation of unit Set screw ...

Страница 155: ... NF9100 SK02E rack mount kit is to be separately purchased Ask your sales representative for details 4 1 Installation of Rails 1 Temporarily tighten two set screws 10 32UNF at both ends of the front frame that corresponds to the unit installation location Do not tighten the screws firmly Set screw ...

Страница 156: ... each rail fitting the round hole in the rail onto the screws in step 1 and temporarily secure it 3 Move to the rear of the rack and firmly secure each rail with two set screws 10 32UNF Screw Round hole Set screw ...

Страница 157: ...it on the rails and then push it in NOTE 2 At the front of the unit firmly tighten the four set screws 2 at right and left each 10 32UNF to secure the unit The unit is very heavy Be careful not to drop it while lifting This completes the installation of the unit Set screw ...

Страница 158: ...d type Rack NOTE N8540 28 42U rack The Express old type racks are N8540 29 36U rack N8540 38 16U rack N8540 09 44U rack N8540 09AC 44U rack N8540 10E 35U rack and N8540 10AC 35U rack The Express old type rack mount kit is the NF9100 SK03E ...

Страница 159: ...D 28 5 1 Installing the Rack Mount Kit Install the rack mount kit into the rack as shown in the figure Detail A for fixing the installed unit ...

Страница 160: ...t on the rails and then push it in NOTE 2 At the front of the unit firmly tighten the four set screws 2 at right and left each 10 32UNF to secure the unit The unit is very heavy Be careful not to drop it while lifting This completes the installation of the unit Set screws ...

Страница 161: ...p for the cable handling if necessary However always clamp the AC cord on the unit side see the figure below For other cables put several cables together and pass each set through repeat ties taking care of the notes below The following figure shows sample wiring of AC cord NOTE To route FC cables note that the maximum bending radius should be equal to or larger than 30 mm F ...

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