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UltraSCSI RAID Enclosure 6–1

Power Distribution

This chapter describes the UltraSCSI RAID enclosure power
distribution to include the following:

•

Enclosure power system overview (see Figure 6–1)

•

Power distribution configurations (standard, redundant, and
optimum)

•

Error condition reporting

•

Replacement procedures (power supply and ac input box)

Figure 6–1

Enclosure Power System

CXO5800A

Содержание StorageWorks DS-BA370 Series

Страница 1: ...370 Series User s Guide Part Number EK BA370 UG C02 387403 001 September 1998 The DS BA370 series UltraSCSI RAID rack mountable enclosure is the basic building block of UltraSCSI RAID subsystems This...

Страница 2: ...chnologies Inc 1997 1998 Compaq Computer Corporation All rights reserved This equipment generates uses and may emit radio frequency energy The equipment has been type tested and found to comply with t...

Страница 3: ...t Description 1 5 UltraSCSI RAID Subsystem 1 7 EMU 1 7 PVA 1 8 Master Enclosure 1 8 Master EMU 1 8 Expansion Enclosure 1 8 Expansion EMU 1 9 I O Module 1 9 SCSI Bus Controller 1 9 Cache Module 1 10 EC...

Страница 4: ...ult Detection 2 12 Error Detection Reporting and Analysis 2 12 Enclosure Status Indicators 2 13 SBB Shelf Status Indicators 2 16 Power Supply Status LEDs 2 16 Disk Drive SBB Configuration 2 16 Disk Dr...

Страница 5: ...Error Condition Reporting 3 18 Configuration Fault Code Reporting 3 21 Replacing an EMU 3 28 Chapter 4 Power Verification and Addressing Product Description 4 2 Functions 4 3 PVA Operation 4 4 EMU Ins...

Страница 6: ...er Configurations 6 2 Standard n 1 6 3 Redundant n 4 6 3 Optimum n 4 6 3 AC Power Source 6 3 AC Input Box 6 4 Shelf Power Supplies 6 5 AC Power Buses 6 6 Power Distribution Configurations 6 7 Standard...

Страница 7: ...ing a Blower 8 4 Appendix A UltraSCSI Enclosure Specifications Physical and Electrical Specifications A 2 Operating Environments A 3 SBB Thermal Stabilization A 5 Appendix B Assembling an UltraSCSI RA...

Страница 8: ...Table of Contents viii UltraSCSI RAID Enclosure Loading the Microcode C 4 Restarting the Controller C 6 Glossary Glossary 1...

Страница 9: ...wer Supply Status LEDs 2 16 Figure 2 6 Disk Drive Status LEDs 2 17 Figure 2 7 Typical Array Controller OCP LEDs 2 18 Figure 2 8 EMU Status LED Locations 2 19 Figure 2 9 PVA Status LED Location 2 19 Fi...

Страница 10: ...6 5 Standard Power Configuration 6 7 Figure 6 6 Redundant Power Configuration 6 8 Figure 6 7 Power Supply Status LEDs 6 10 Figure 7 1 Typical Disk Drive SBB 7 1 Figure 7 2 Typical Drive SBB Regulatory...

Страница 11: ...e 3 3 Temperature Set Point Rules EMU Firmware Versions 1 0 and 1 1 3 11 Table 3 4 Temperature Set Point Rules EMU Firmware Versions 1 2 3 12 Table 3 5 Subsystem Status LEDs Displays 3 16 Table 3 6 DC...

Страница 12: ...Handling Rules 6 12 Table 6 3 Removing a Power Supply 6 13 Table 6 4 Installing a Power Supply 6 15 Table 6 5 Removing an AC Input Box 6 17 Table 6 6 Installing an AC Input Box 6 18 Table 7 1 Disk Dri...

Страница 13: ...nstalling and operating UltraSCSI RAID subsystems using a DS BA370 series enclosure mounted in either a data center cabinet or a departmental server cabinet Structure Manual organization is as follows...

Страница 14: ...onfiguration and replacement procedures Chapter 7 This chapter describes the disk drive operation functions uses configuration and replacement procedures Chapter 8 This chapter describes blower operat...

Страница 15: ...term within a chapter activates the link italic type Italic type emphasizes important imformatioin and indicates complete titles of manuals Italic type within the glossary indicates a cross reference...

Страница 16: ...Publication Title Order Number HSZ70 Array Controller HSOF Version 7 0 CLI Reference Manual EK CLI70 RM HSZ70 Array Controller HSOF Version 7 0 Configuration Manual EK HSZ70 CG HSZ70 Array Controller...

Страница 17: ...g a Host Bus Cable Ferrite Bead EK SWXES IG StorageWorks Solutions SBB User s Guide EK SBB35 UG UltraSCSI Subsystem Standby Power Operation EK POWER IG UltraSCSI RAID Data Center Cabinet DS SW600 Seri...

Страница 18: ......

Страница 19: ...uct may cause radio interference in which case the user may be required to take adequate measures ACHTUNG Dieses ist ein Ger t der Funkst rgrenzwertklasse A In Wohnbereichen k nnen bei Betrieb dieses...

Страница 20: ...e Level LpAm dBA bystander positions Idle Operate Idle Operate RAID Array 7000 Subsystem DS SWXRA HA with 2 ac input boxes DS BA35X HE 8 180 W shelf power supplies DS BA35X HH 24 disk drives 2 4 9 or...

Страница 21: ...trieb RAID Array 7000 Subsystem DS SWXRA HA with 2 ac input boxes DS BA35X HE 8 180 W shelf power supplies DS BA35X HH 24 disk drives 2 4 9 or 18 GB 6 1 N A 48 4 48 4 RAID Array 7000 Subsystem DS SWXR...

Страница 22: ......

Страница 23: ...closure The Compaq StorageWorks UltraSCSI RAID redundant array of independent disks enclosure DS BA370 series shown in Figure 1 1 is the basic building block for Compaq single ended UltraSCSI RAID sub...

Страница 24: ...4 The enclosure and the subsystem are configured for UltraSCSI operation Note The DS model number prefix defines new Compaq storage products In some cases these numbers might be similar to an existin...

Страница 25: ...Introducing the UltraSCSI RAID Enclosure UltraSCSI RAID Enclosure 1 3 Figure 1 2 Typical DS BA370 Applications 0 1 0 0 1 0 0 1 0 0 1 0 0 1 0 0 1 0 CXO6264A...

Страница 26: ...speed of the single ended UltraSCSI signals can cause degradation of signal integrity over the same distances as single ended Fast SCSI signals However the UltraSCSI bus can run over much greater dist...

Страница 27: ...A minimum of one or a maximum of two ac input boxes DS BA35X HE also called ac power controllers that distribute ac power to the shelf power supplies Either five or eight shelf power supplies DS BA35X...

Страница 28: ...ect the six vertical buses to the four horizontal drive SBB shelves All the devices on a shelf use the same SCSI bus identifier ID The PVA address switch defines the SCSI bus ID of each shelf See Figu...

Страница 29: ...1 for the capacities of the various subsystems Note Not all array controllers support configurations with expansion cabinets Refer to the array controller documentation to ensure the controller suppo...

Страница 30: ...the only EMU that can communicate directly with the array controllers In a multiple enclosure or expansion configuration the master enclosure also communicates with the other enclosures using the EMU...

Страница 31: ...oss of communications with the master EMU the expansion EMU assumes control of certain expansion enclosure functions In this state the expansion EMU cannot communicate with the UltraSCSI controller I...

Страница 32: ...ircuits determine there is a problem an audible alarm can sound and one or more sets of status LEDs light emitting diodes display an error code The enclosure has two LED indicators see Figure 1 4 The...

Страница 33: ...nimum power supply redundancy A system power failure will occur for any of the following conditions Loss of the ac power source Failure of the ac input box Failure of two power supplies The user has t...

Страница 34: ...Configuration Adding three shelf power supplies a second ac input box and a second ac power source provides optimum power redundancy With separate ac power sources for each ac input box there are no...

Страница 35: ...dant configuration two UltraSCSI controllers two cache modules and ECBs is the most effective and efficient method of ensuring continuous subsystem operation in the event of a component failure UltraS...

Страница 36: ......

Страница 37: ...tions operations error conditions and so forth UltraSCSI Configuration Rules Proper operation of the subsystem requires complying with both the UltraSCSI and hardware configuration rules In some insta...

Страница 38: ...A370 series UltraSCSI bus does not support 5 25 inch devices A DS BA370 series enclosure does not support narrow devices Only UltraSCSI devices have a maximum transfer rate of 40 MB s Installing a FAS...

Страница 39: ...rive support is controller specific Refer to the array controller documentation to determine compatible disk drives UltraSCSI Nodes A node is a SCSI device that uses a SCSI bus ID In the UltraSCSI RAI...

Страница 40: ...fies these power supplies Figure 2 1 Power Supply Bezel Label Enclosure Addressing The following configuration rules apply to the UltraSCSI RAID enclosure address settings The enclosure containing the...

Страница 41: ...stem Note Before applying power to the subsystem configure the entire subsystem including the host and the array controller as described in the appropriate publications Applying power to all the enclo...

Страница 42: ...tch applies ac power only to the shelf power supplies on the associated power bus bus A or B Note Apply power in the following sequence 1 All expansion enclosures 2 Master enclosure Figure 2 2 AC Powe...

Страница 43: ...2 Turning On the Subsystem Power 1 If there are no expansion enclosures go to step 2 If there are expansion enclosures turn ON all the ac input boxes for each expansion enclosure by pressing I on each...

Страница 44: ...e array controller documentation for availability of this feature Standby Power Mode Placing the subsystem in the standby power mode disconnects the dc power from the backplane However ac input power...

Страница 45: ...controller per the array controller documentation 2 If there are no expansion enclosures go to step 3 If there are expansion enclosures press and hold the PVA standby power switch CALLOUT 1 on an expa...

Страница 46: ...e 2 5 to remove all power Table 2 4 Restoring the DC Power 1 If there are no expansion enclosures go to step 3 2 If there are expansion enclosures momentarily press the EMU alarm control switch CALLOU...

Страница 47: ...enclosure until the master EMU initiates a power shut down of all enclosures 3 Press and hold the PVA standby power switch CALLOUT 1 on the master enclosure until the master EMU initiates a power shu...

Страница 48: ...tion occurs Status changes are indicated to the user through a combination of LEDs an EMU audible alarm and an optional maintenance terminal connected to the array controller Table 2 6 lists the major...

Страница 49: ...Loss of either a dc voltage or a blower creates an error condition The enclosure notifies the user of the problem by sounding an audible alarm and changing the status LED displays When the enclosure...

Страница 50: ...lies are functioning correctly If the amber system fault LED is ON it indicates one or more components have an error or fault condition To isolate an error condition observe the status LEDs on the EMU...

Страница 51: ...blower problem or a power problem Replace the defective blower or power components 2 Observe individual disk drive SBBs for an error condition 3 Check the array controller optional system maintenance...

Страница 52: ...ower supply status LED CALLOUT 2 is ON when the power supply is operating properly If the power supply fails both its power supply status LEDs turn OFF Disk Drive SBB Configuration Part of the initial...

Страница 53: ...s on the original disk Disk Drive Status LEDs Each disk drive SBB has two LEDs that display its operating status Figure 2 6 The green device activity LED CALLOUT 1 is ON or FLASHING whenever the disk...

Страница 54: ...cal Array Controller OCP LEDs The green array controller LED CALLOUT 1 inside the Reset button indicates controller status This LED flashes constantly once the controller initialization is complete an...

Страница 55: ...2 9 has only one status LED the power status LED For a detailed description of the PVA status displays and alarm see Chapter 4 Figure 2 9 PVA Status LED Location Figure CALLOUTS 1 System fault LED amb...

Страница 56: ...th the internal CALLOUT 2 and external CALLOUT 1 SCSI bus terminator power TERMPOWER Whenever TERMPOWER is present the applicable LED internal or external is ON During normal operation both LEDs are O...

Страница 57: ...O module communications and microcode status information The EMU and the array controller exchange and process some of this information Figure 3 1 EMU Caution Proper operation of an UltraSCSI subsyst...

Страница 58: ...EDs The EMU CALLOUT 1 mounts directly above array controller A upper bus controller as shown in Figure 3 2 Figure 3 2 EMU Location In some instances such as a blower failure a high intake air temperat...

Страница 59: ...n overtemperature condition the cache module data is preserved prior to turning OFF the enclosure dc power Controller Status The master EMU monitors the state of both array controllers If the EMU dete...

Страница 60: ...ptional maintenance terminal if connected An integrated circuit on each I O module functions as a bus expander The EMU and the array controller can either enable or disable this circuit on an individu...

Страница 61: ...he system fault LED starts FLASHING if the EMU has one or more fault codes to display If the system fault LED is FLASHING momentarily pressing the EMU alarm control switch turns the audible alarm OFF...

Страница 62: ...atus LED turns OFF if any one of the following error conditions exist 5 V dc is less than 4 7 V dc 12 V dc is less than 11 4 V dc Fewer than four power supplies are operational TERMPOWER is missing fr...

Страница 63: ...onfiguration an EMU EMU communications bus between the master EMU and each expansion EMU must be established To establish this communications bus connect the EMU communications connector using a BN26M...

Страница 64: ...ure that is within 4 degrees Celsius C or 7 degrees Fahrenheit F of the sensor set point For example if a temperature set point is 37 C 99 F the EMU would cause the blowers to operate at high speed wh...

Страница 65: ...ll the temperature set points using CLI commands EMU Firmware Versions 1 0 and 1 1 To set the temperature set point for an EMU the following CLI commands must be used set emu sensor_1_setpoint 48 set...

Страница 66: ...air temperature while the two enclosure sensors monitor the backplane exhaust air temperature Naturally the exhaust air temperature is higher than the EMU intake air temperature during normal operatio...

Страница 67: ...36 115 46 45 7 63 17 81 27 99 37 117 47 46 8 64 18 82 28 100 38 118 48 48 9 66 19 84 29 102 39 120 49 Table 3 3 Temperature Set Point Rules EMU Firmware Versions 1 0 and 1 1 1 Enter all temperatures i...

Страница 68: ...set emu sensor_n_setpoint default command Instead the following command is required set emu sensor_n_setpoint nn where nn is the desired temperature in C Table 3 4 Temperature Set Point Rules EMU Firm...

Страница 69: ...ir temperature exceeds the user defined temperature setting Compaq suggests using the set emu fanspeed high command for either of the following conditions EMU intake air temperature is more than 38 C...

Страница 70: ...he Configuration Fault Code Reporting section within this chapter EMU Status Reporting The EMU processes subsystem status reports and notifies the user of problems via an EMU audible alarm and EMU sta...

Страница 71: ...al maintenance terminal to verify that the error no longer exists The master EMU reports the status of all enclosures including error conditions to the array controller The array controller records so...

Страница 72: ...The only way to clear a stored error condition code is to correct the problem If the enclosure is in standby power mode the alarm control switch functions as an enclosure power switch Press the alarm...

Страница 73: ...ntain the minimum voltage requirements shown in Table 3 6 With less than four operational power supplies the EMU notifies the array controllers of a fault condition The array controllers shut down and...

Страница 74: ...earance Enclosure status associated with each display A probable cause for the detected error condition Action recommended to correct the problem Note Presenting all possible LED display combinations...

Страница 75: ...l blowers are running at high speed Probable Cause 1 A blower is removed Replace the missing blower Probable Cause 2 All blowers in one bank are not operating Remove and install blowers correctly with...

Страница 76: ...ple 2 Configuration errors listed in probable causes 1 through 4 also sound the audible alarm Probable Cause 1 Invalid cache module installed Verify that the cache module is the proper model Probable...

Страница 77: ...significant digit of the hexadecimal code the lower LEDs 4 through 1 display the second digit the least significant digit of the hexadecimal code Note Fault codes are not displayed by the blower LEDs...

Страница 78: ...rst reported fault code for the third time for 1 second and then turn OFF 2 After the first reported fault code is displayed three times the LEDs sequence the display to present the next reported faul...

Страница 79: ...us ID 0 1 Ensure PVA SCSI ID switches settings are as follows Master enclosure 0 First expansion enclosure 2 Second expansion enclosure 3 2 If any PVA SCSI ID switch setting is changed the controllers...

Страница 80: ...onnected 4 Disconnect and reconnect each EMU cable one at a time Replace the defective cable 5 Replace the EMU Fault Code 05 Master EMU cannot communicate with the array controller 1 Replace the EMU 2...

Страница 81: ...ond expansion enclosure 3 2 If any PVA SCSI ID switch setting is changed the controllers must be RESET to recognize the new setting 3 Replace each of the PVAs in sequence first the master then the exp...

Страница 82: ...status LED turned OFF Fault Code 0D The master enclosure SCSI bus ID address is incorrect or an array controller is installed in an expansion enclosure 1 Change the master enclosure SCSI bus ID to 0 T...

Страница 83: ...the standby power mode display appears after the EMU removes dc power from the enclosure Initial Display Standby Power Mode Display Fault Code 10 EMU diagnostic program is loaded The audible alarm is...

Страница 84: ...the PVA standby power switch CALLOUT 1 on an expansion enclosure until the master EMU initiates a power shut down of all enclosures 3 Press and hold the PVA standby power switch CALLOUT 1 on the maste...

Страница 85: ...the EMU extractor latches outward and remove the EMU Table 3 10 Installing an EMU 1 Verify that the EMU is a model DS BA35X EB 2 Align the EMU in the top left hand slot CALLOUT 1 and insert it Table 3...

Страница 86: ...n use a BN26M series cable see Table 3 1 to create the EMU EMU communications bus connections as illustrated below 5 If there are expansion enclosures turn ON all the ac input boxes for each expansion...

Страница 87: ...me instances the array controller that a problem exists The array controller can identify and display information about some problems The PVA and EMU status LEDs indicate possible root causes of probl...

Страница 88: ...T 1 is on the left and the PVA is on the right CALLOUT 2 as shown in Figure 4 2 Figure 4 2 PVA Location Product Description Figure 4 3 identifies the major PVA components Figure 4 3 PVA Major Componen...

Страница 89: ...is mode ac power is applied to the ac input box and the power supplies However dc power is disconnected from the backplane An audible alarm that sounds when the PVA detects removal of the EMU This ala...

Страница 90: ...lly seated the PVA detects this condition and sounds the PVA audible alarm This alarm continues until the PVA senses that an operational EMU is present Caution Removing the EMU and PVA at the same tim...

Страница 91: ...establish SCSI bus IDs for all devices in the enclosure This switch has eight 0 through 7 positions Caution To preclude SCSI bus addressing conflicts Compaq only supports PVA SCSI ID switch settings o...

Страница 92: ...els sufficient to run the system are present Fewer than four operational power supplies cannot maintain the minimum voltages If this occurs the EMU notifies the array controllers so they can shut down...

Страница 93: ...have the same address See Table 4 3 for the Compaq supported enclosure addresses Caution All devices on the same SCSI bus must have a unique SCSI bus ID To preclude SCSI bus addressing conflicts Comp...

Страница 94: ...establishes the disk drive SBB SCSI bus IDs shown in Figure 4 5 Figure 4 5 Master Enclosure Address 0 Shelf and SCSI Bus IDs Table 4 3 Compaq Supported PVA SCSI ID Switch Settings Total Number of Encl...

Страница 95: ...7 for expansion enclosures 2 Used for the first expansion enclosure 3 Used for a second expansion enclosure Caution To preclude SCSI bus addressing conflicts Compaq array controllers do not support e...

Страница 96: ...itch In standby power mode the EMU alarm control switch now functions as a dc power switch when pressed Complete the procedure in Table 4 4 to place the subsystem into standby power mode Complete the...

Страница 97: ...re are expansion enclosures press and hold the PVA standby power switch CALLOUT 1 on an expansion enclosure until the master EMU initiates a power shut down on all enclosures 3 Press and hold the PVA...

Страница 98: ...expansion enclosures go to step 3 2 If there are expansion enclosures momentarily press the EMU alarm control switch CALLOUT 1 on each expansion enclosure 3 Momentarily press the EMU alarm control sw...

Страница 99: ...ure until the master EMU initiates a power shut down on all enclosures 3 Press and hold the PVA standby power switch CALLOUT 1 on the master enclosure until the master EMU initiates a power shut down...

Страница 100: ...e PVA SCSI ID switch CALLOUT 3 6 Pull both extractor latches outward and remove the PVA Table 4 7 Installing a PVA 1 Verify that the PVA being installed is a model DS BA35X EC 2 Align the PVA CALLOUT...

Страница 101: ...re Master enclosure 0 First expansion enclosure 2 Second expansion enclosure 3 5 If there are no expansion enclosures go to step 6 If there are expansion enclosures turn ON all the ac input boxes for...

Страница 102: ......

Страница 103: ...ation for both the internal and external SCSI buses Establishes SCSI bus communications between enclosures Figure 5 1 Single Ended I O Module Caution I O modules provide termination for both the inter...

Страница 104: ...s in the expansion enclosures In an UltraSCSI RAID subsystem the I O module number corresponds to the SCSI bus number For example SCSI bus 2 and I O module 2 are different elements of the same physica...

Страница 105: ...ar the cache and shut down the array controller 2 Turn OFF the enclosure power Caution Replacing an I O module or an expansion cable without first shutting down the controller can adversely affect dat...

Страница 106: ...nternal TERMPOWER is present Turns OFF the green internal TERMPOWER LED when there is either an internal TERMPOWER overcurrent condition or no TERMPOWER Controlling the External SCSI Bus The I O modul...

Страница 107: ...ompatible I O modules TERMPOWER problems Incompatible I O Modules An I O module error condition exists if any of the following conditions exist One or more nonoperating I O modules Installation of few...

Страница 108: ...than six single ended I O modules Installing a termination I O module Installing a differential I O module TERMPOWER Errors The I O module displays a TERMPOWER status indication for both the internal...

Страница 109: ...bus respectively See Chapter 4 for a discussion of valid enclosure SCSI bus addresses and the associated array controller and storage device SCSI bus IDs Note Wide UltraSCSI supports a maximum of 16...

Страница 110: ...he I O module numbers 1 through 6 correspond to the enclosure SCSI bus numbers 2 Always connect cables between enclosures to the same I O module number That is connect I O module 1 on the master enclo...

Страница 111: ...re the controller supports expanded configurations The Compaq UltraSCSI controller does not support connecting or disconnecting a SCSI bus cable when both data and power are present on the connector a...

Страница 112: ...3 and Table 5 5 before beginning cable installation procedures for a two or three enclosure subsystem Table 5 4 UltraSCSI Bus Cables Description Length Order Number Meters Feet 68 conductor SCSI cable...

Страница 113: ...nclosure until the master EMU initiates a power shut down on all enclosures 3 Press and hold the PVA standby power switch CALLOUT 1 on the master enclosure until the master EMU initiates a power shut...

Страница 114: ...SI RAID subsystem with more than one enclosure Refer to the array controller documentation to ensure the controller supports expanded configurations Overtightening the I O module spring loaded mountin...

Страница 115: ...gn the module that has Cable A CALLOUT A attached with the Port 1 backplane connector Gently insert the module and fully seat it Use a screwdriver to tighten the spring loaded mounting screws 8 On the...

Страница 116: ...connector Gently insert the module and fully seat it Use a screwdriver to tighten the spring loaded mounting screws 11 Repeat steps 5 through 10 for the remaining SCSI buses ports 2 through 6 12 Turn...

Страница 117: ...Subsystem 1 If there are no expansion enclosures go to step 3 2 Turn ON all the ac input boxes for each expansion enclosure by pressing I on each ac power switch CALLOUT 1 3 On the master enclosure tu...

Страница 118: ...s requires two BN37A cables for a total of 12 cables Caution Not all array controllers support an UltraSCSI RAID subsystem with more than one enclosure Refer to the array controller documentation to e...

Страница 119: ...and pull it straight outward until removed from the enclosure shroud 4 Repeat steps 2 and 3 for all the I O modules within the three enclosures 5 On the master enclosure I O module align the Cable A...

Страница 120: ...r Gently insert the cable connector into the module connector Tighten both cable connector thumb screws to fully seat the connector 9 Install a wire tie through the holes on the cable support bracket...

Страница 121: ...seat it Use a screwdriver to tighten the spring loaded mounting screws 13 On the second expansion enclosure I O module align the Cable B CALLOUT B connector with the left connector Gently insert the...

Страница 122: ...ctor Gently insert the module and fully seat it Use a screwdriver to tighten the spring loaded mounting screws 16 Repeat steps 5 through 15 for the remaining SCSI buses ports 2 through 6 17 Turn ON th...

Страница 123: ...e 5 9 Removing an I O Module 1 Shut down the subsystem using Table 5 5 2 Use a screwdriver to loosen two spring loaded mounting screws on the I O module 3 Grasp the I O module by the cable support bra...

Страница 124: ...or thumb screws to fully seat the connector 3 Install a wire tie through the holes on the cable support bracket and around the cable Tighten the wire tie 4 If attaching a cable to the right I O module...

Страница 125: ...wn the subsystem before removing an I O module Overtightening the I O module spring loaded mounting screws can damage the threads Table 5 11 Removing an Expansion Cable 1 Shut down the subsystem using...

Страница 126: ...nector 3 Install a wire tie through the holes on the cable support bracket and around the cable Tighten the wire tie 4 Repeat steps 2 and 3 for the other end of the cable This end of the cable might c...

Страница 127: ...D enclosure power distribution to include the following Enclosure power system overview see Figure 6 1 Power distribution configurations standard redundant and optimum Error condition reporting Replac...

Страница 128: ...er cords Shelf power supplies Note The ac input box power cords are integral to the data center cabinets For the departmental server cabinets the user supplied power cords are country specific The dri...

Страница 129: ...nly one ac power source that supplies ac power to both ac input boxes Optimum n 4 This configuration has four redundant power supplies for a total of eight power supplies Two ac input boxes distribute...

Страница 130: ...are completely interchangeable and have no physical or electrical differences between them AC input boxes do not have error indicators on them nor do they generate any error signals Without an optiona...

Страница 131: ...enclosure is eight power supplies four of which provide power redundancy The standard power configuration uses five power supplies one of which provides power redundancy Caution UltraSCSI RAID enclosu...

Страница 132: ...ALLOUT 1 uses black power cords and power bus B CALLOUT 2 uses grey power cords These colored cords indicate the power bus being used AC input box A controls power bus A power supply positions 1A thro...

Страница 133: ...supplies located in positions 1A through 5A see Figure 6 5 Power bus A uses four black power cords on the left side of the enclosure and one black power cord on the upper right corner Figure 6 5 Stand...

Страница 134: ...ed over both power buses A and B CALLOUTS 1 and 2 respectively as shown in Figure 6 6 Each bus has four power supplies for a total of eight Figure 6 6 Redundant Power Configuration AC input box A dist...

Страница 135: ...wo separate ac power sources One ac power source provides power to ac input box A the other ac power source provides ac power to ac input box B To implement this configuration from a standard n 1 conf...

Страница 136: ...Reporting This section describes the power supply and ac input box error condition reporting Power Supply The two green LEDs on each power supply see Figure 6 7 display the blower the power bus and th...

Страница 137: ...for a specific power bus this indication points to an ac input box failure or possibly an ac power source failure Table 6 1 Power Supply Status LED Displays LED Display Description and Possible Corre...

Страница 138: ...Supply SBB Table 6 2 defines the proper methods for handling a power supply SBB to prevent damaging it Table 6 2 SBB Handling Rules Do Do NOT Set an SBB on its side Set an SBB on its edge Set SBBs si...

Страница 139: ...method requires making all devices inactive and removing ac power from the UltraSCSI RAID enclosure Complete the procedures in Table 6 3 and Table 6 4 to replace a shelf power supply Caution To prote...

Страница 140: ...1 on the master enclosure until the master EMU initiates a power shut down on the master enclosure 6 If there are no expansion enclosures go to step 7 If there are expansion enclosures turn OFF all th...

Страница 141: ...t of the shelf 10 Place the power supply into an electrostatic bag 11 Lay the power supply on its side on a flat surface Table 6 4 Installing a Power Supply 1 Check the bezel label to verify that the...

Страница 142: ...f there are no expansion enclosures go to step 7 If there are expansion enclosures turn ON all the ac input boxes for each expansion enclosure by pressing I on each ac power switch CALLOUT 1 7 On the...

Страница 143: ...wer cord before removing an ac input box Never touch the backplane connector or circuit board Always install the ac input box before connecting the ac power cord Table 6 5 Removing an AC Input Box 1 F...

Страница 144: ...2 and remove the ac input box CALLOUT 1 6 Place the ac input box into an electrostatic bag Table 6 6 Installing an AC Input Box 1 Verify that the ac input box being installed is a model DS BA35X HE 2...

Страница 145: ...it 5 Tighten the two retaining screws CALLOUT 2 6 Connect the ac power cord CALLOUT 4 from the ac power source to the ac input box CALLOUT 1 7 If necessary repeat steps 1 through 6 to install a second...

Страница 146: ......

Страница 147: ...ure Error conditions and the associated LED displays are also described Figure 7 1 Typical Disk Drive SBB Caution The Compaq UltraSCSI RAID enclosure supports 3 5 inch disk drive SBBs This enclosure d...

Страница 148: ...regulatory label see Figure 7 2 on the side of the SBB or at the disk drive SBB bezel label Figure 7 2 Typical Drive SBB Regulatory Label A typical drive SBB bezel label see Figure 7 3 includes the f...

Страница 149: ...ed array controller channel number the array controller port or SCSI bus number 6 SCSI bus device width N an 8 bit device narrow W a 16 bit device wide 7 StorageWorks shelf type wide or narrow compati...

Страница 150: ...ure 7 4 that display the SBBs status These LEDs have three states ON OFF and FLASHING Figure 7 4 Disk Drive Status LEDs The green device activity LED CALLOUT 1 is ON or FLASHING when the disk drive SB...

Страница 151: ...ignals Compaq recommends replacing this storage SBB The disk drive SBB is active and in spin down status because of a fault Compaq recommends replacing the disk drive SBB after the device has spun dow...

Страница 152: ...sm that supports 200 SBB replacement cycles A replacement cycle consists of removing and replacing an SBB Over the active product life of 5 years this is the equivalent of 40 replacement cycles per ye...

Страница 153: ...ution To protect this sensitive electronic device from ESD use the following precautions Wear an ESD wrist strap Do not touch the printed circuit board or the backplane connector Do not lay the device...

Страница 154: ...integrity Use hot swap to remove and replace disk drive SBBs from a system that is online and active Warm Swap When performing a warm swap power is present on the disk drive SBB plug connector and th...

Страница 155: ...sk Drive SBB Table 7 2 defines the proper methods for handling a disk drive SBB to prevent damage Table 7 2 SBB Handling Rules Do Do NOT Set an SBB on its side Set an SBB on its edge Set SBBs side by...

Страница 156: ...warm swap quiesce the SCSI bus using array controller documentation then go to step 8 3 To perform a cold swap shut down the subsystem using array controller documentation 4 If there are no expansion...

Страница 157: ...O on each ac power switch CALLOUT 1 7 Turn OFF all the ac input boxes for the master enclosure by pressing O on each ac power switch CALLOUT 1 8 Press the disk drive SBB mounting tabs together to rel...

Страница 158: ...ng an UltraSCSI enclosure go to step 8 3 For a hot or warm swap insert the disk drive SBB into the guide slot and push it in until the mounting tabs engage the shelf fully seating the disk drive SBB 4...

Страница 159: ...n each ac power switch CALLOUT 1 and then go to step 14 8 Install all the disk drive SBB devices starting in the lower left corner in shelf 1 devices 1 through 6 and advancing to the right 9 Starting...

Страница 160: ...closures turn ON all the ac input boxes for each expansion enclosure by pressing I on each ac power switch CALLOUT 1 13 On the master enclosure turn ON all the ac input boxes by pressing I on each ac...

Страница 161: ...ablish and maintain the proper external that is ambient environment Failure to achieve these goals might cause components to malfunction and compromise data integrity The eight blower assemblies on th...

Страница 162: ...air temperature backplane being too high the EMU initiates routines that can cause a power shut down Removing a blower significantly changes the air flow pattern within the enclosure The EMU initiates...

Страница 163: ...es connector alignment when installing a blower A combination of blower connector and mounting tabs provides positive mating of the blower with the blower plenum If an error condition involving the bl...

Страница 164: ...e at high speed to increase air flow through the components enough air to permit continued operation without corrupting or losing data However Compaq recommends replacing a defective blower immediatel...

Страница 165: ...r is removed and not replaced within approximately 8 minutes the array controllers will shut down and then the EMU will turn OFF the dc power distribution Table 8 1 Removing a Blower 1 Use both hands...

Страница 166: ...Orient the replacement blower to align its connector CALLOUT 2 and guide pin CALLOUT 1 with the backplane blower connector 3 Push the blower straight in until the upper and lower mounting tabs CALLOU...

Страница 167: ...all its major electronic components See Figure A 1 and its associated CALLOUT numbers on the following page Figure A 1 UltraSCSI RAID Enclosure Major Components Figure CALLOUTS 1 HA 2450CU enclosure...

Страница 168: ...fications The following specifications apply to a single UltraSCSI RAID enclosure see Figure A 2 with all of the components installed Shipping Dimensions Height 1156 mm 45 5 in Width 978 mm 38 5 in De...

Страница 169: ...Up to 2400 m 8000 ft Air quality Not to exceed a maximum of 500 000 particles 0 5 micron or larger per cubic foot of air Nominal airflow 50 cubic ft min Heat dissipation 3070 BTUs h Table A 2 Minimum...

Страница 170: ...nclosure Specifications A 4 UltraSCSI RAID Enclosure Table A 3 Shipping Environment Condition Specification Temperature 40 C to 66 C 40 F to 150 F Relative humidity 10 80 noncondensing Altitude 4900 m...

Страница 171: ...de of the SBB Thermally stabilize the device and the SBB in the operating environment for 6 hours or until the condensation is no longer visible whichever is longer Do not install a storage device unt...

Страница 172: ......

Страница 173: ...sequentially installing the components in a DS BA370 series rack mountable enclosure The UltraSCSI RAID enclosure arrives as either a departmental server cabinet a pedestal with a factory installed e...

Страница 174: ...enclosure to the master enclosure and test the subsystem operation 4 Assemble the second expansion enclosure 5 Connect the second expansion enclosure to either the master enclosure or the first expan...

Страница 175: ...tem 9 Connect subsystem cabling 10 Configure the subsystem using configuration rules described in Chapter 2 Installing the EMU Each UltraSCSI enclosure requires an EMU for proper operation In an expan...

Страница 176: ...e Locations For a single enclosure subsystem complete the procedures in Table 5 10 to install I O modules in the enclosure Caution Not all array controllers support more than one enclosure Refer to th...

Страница 177: ...ithin an ECB shelf mounted inside the cabinet Caution Two sets of array controllers and cache modules can be installed within an UltraSCSI RAID subsystem By default the enclosure that contains these c...

Страница 178: ...n Operating system specific release notes Note For single array controller and cache set configurations Controller A must be configured with Cache A or Controller B must be configured with Cache B Tab...

Страница 179: ...h extractor latches to firmly seat the array controller 4 Align the cache module with the Cache A slot CALLOUT 4 in step 1 in the enclosure 5 Insert the cache module into the Cache A slot and push it...

Страница 180: ...d repeat steps 2 through 7 using Controller B and Cache B slots CALLOUTS 3 and 4 shown below Table B 1 Installing Array Controllers and Cache Modules Continued CXO5603A 17 11 CXO5812B 19 20 21 22 23 2...

Страница 181: ...precautions Wear an ESD wrist strap Do not touch the printed circuit board or the backplane connector Do not lay the device on a work surface place it on an electrostatic mat Place the device in an el...

Страница 182: ...ule For a detailed description of the cable connection procedures and cable routing refer to the following publications Array controller documentation DIGITAL StorageWorks UltraSCSI RAID Cabinet Subsy...

Страница 183: ...ocodes are a different revision level the master EMU automatically downloads the latest microcode revision over the EMU communications bus Microcode Upgrades Microcode upgrades can be downloaded from...

Страница 184: ...re in Table C 1 prior to starting the installation procedure Table C 1 Preliminary Procedures 1 Shut down the software for each controller and eject its personal computer memory card industry associat...

Страница 185: ...gh NO Protocol Options General Options Abort xfer if CD lost NO ASCII Protocol Options Character pacing millisec 0 Line pacing 1 10 second 0 Pace character 0 Strip 8th bit NO CR translation upload NON...

Страница 186: ...d 2 While still holding in alarm control switch insert the EMU into the enclosure and firmly seat it The PVA audible alarm turns OFF The temperature amber power green and eight blower amber LEDs will...

Страница 187: ...pper FLASH image to Lower FLASH EMU transferring new microcode Lower FLASH is valid Upper FLASH is valid New microcode verification complete SW370 EMU Flash Version 1 1 SW370 EMU Protocol Version 1 0...

Страница 188: ...restart the controller after the microcode upgrade is loaded Table C 5 Restarting the Controller 1 Remove the 8 pin RJ45 connector from the EMU UART connector 2 On each controller press and hold in th...

Страница 189: ...e method of distributing ac power within a StorageWorks shelf enclosure or cabinet ac input box A device that receives ac power from the PDU and distributes the ac power to all shelf power supplies co...

Страница 190: ...ended to differential and single ended to single ended bus extenders The term expander is a general term that includes extender repeater and isolator bus extender See bus expander bus segment A SCSI...

Страница 191: ...rtmental server cabinet cache module A fast storage buffer Callout n A textual reference to a numbered callout in a figure CE Mark A European Economic Community EEC certification label that identifies...

Страница 192: ...rageWorks subsystem upgrades or when conditions preclude using either the warm swap or hot swap method See also warm swap and hot swap command line interpreter See CLI connector Any connector that is...

Страница 193: ...to form subsystems device The targets initiators hubs converters and bus expanders and similar devices interconnected to form a SCSI bus Connectors expanders and hubs do not use a SCSI bus ID See also...

Страница 194: ...vice that monitors the status of the UltraSCSI RAID enclosure to include power intake air temperature blower status and so forth detects error and fault conditions displays these conditions reports th...

Страница 195: ...rate increase from 5 Mb s to 10 Mb s A maximum wide transfer rate of 20 MB s Fast 20 See UltraSCSI FCC Federal Communications Commission The federal agency responsible for establishing standards and a...

Страница 196: ...the initiator role host computer See host host controller A device that connects the host system I O bus for example a PCI bus to the storage SCSI bus A host controller provides RAID functionality ty...

Страница 197: ...gle ended or 16 bit differential SCSI bus input output module See I O module intake air temperature The temperature of the air entering the cabinet enclosure shelf or SBB See also ambient air temperat...

Страница 198: ...tively and the bus clock frequency determines the transfer rate in MB s megabits per second See Mb s megabytes per second See MB s node A SCSI bus target or initiator that uses a SCSI bus ID For examp...

Страница 199: ...ee PVA PVA Power verification and addressing assembly The module whose primary functions are 1 to allow the user to select the enclosure UltraSCSI bus ID 2 to enable the user to place the subsystem in...

Страница 200: ...line Any device conforming to shelf mechanical and electrical standards installed in either a 3 5 inch or 5 25 inch carrier is considered to be an SBB whether it be a storage device a power supply or...

Страница 201: ...at controls communications to and from a specific SCSI bus in the system 2 Hardware The name of the logical socket at the back of the system unit to which a SCSI device is connected shelf power supply...

Страница 202: ...SCSI bus See TERMPOWER storage array An integrated set of storage devices See also storage sets storage sets A grouping of disk drives that make up a new distinct container See also storage array stor...

Страница 203: ...es in bus segments A SCSI domain must have at least one segment and therefore at least two terminators The terminators ensure that inactive SCSI bus signals are in a known state There are two basic ty...

Страница 204: ...poration now Compaq Computer Corporation StorageWorks Engineering Group Subsequently the ANSI SCSI standards committee issued standard X3T10 for UltraSCSI The UltraSCSI improvements over Fast SCSI inc...

Страница 205: ...onnect A 68 pin interface cable with connectors on 0 8 mm centers Required for UltraSCSI operation warm swap A method of device replacement whereby the complete system remains online during device rem...

Страница 206: ......

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