Compaq StorageWorks DS-BA370 Series User Manual Download Page 36

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Summary of Contents for StorageWorks DS-BA370 Series

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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Page 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...

Page 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...

Page 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...

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Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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