DEC DS-HSZ22-AA, Руководство пользователя

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RAID Array 3000 Storage Subsystem
iv EK–SMCPO–UG. A01
2 RAID Array Controller (continued)
2.6.5 RAID 5............................................................................................ 2–16
2.6.6 JBOD .............................................................................................. 2–18
2.7 System Parameters.............................................................................. 2–18
2.8 Redundant Operation .......................................................................... 2–20
2.8.1 Initialization .................................................................................... 2–20
2.8.2 Message Passing.............................................................................. 2–20
2.8.3 Failover ........................................................................................... 2–20
2.9 Environmental .................................................................................... 2–21
2.9.1
Backup Power Management ............................................................ 2–21
2.9.2 Voltage Monitoring ......................................................................... 2–22
2.9.3 Temperature Monitoring.................................................................. 2–24
3 Maintenance
3.1 Introduction .......................................................................................... 3–1
3.2 Pedestal Status and Power LEDs........................................................... 3–2
3.3 SBB Status LEDs.................................................................................. 3–2
3.4
Controller LEDs ................................................................................... 3–3
3.5
EMU Error Reporting ........................................................................... 3–4
3.6 EMU Error Conditions.......................................................................... 3–4
3.6.1 Replacing Components (FRU’s) ........................................................ 3–5
3.6.2 Removing the Pedestal Door ............................................................. 3–5
3.6.3 Replacing an SBB ............................................................................. 3–6
3.6.4 Replacing a Power Supply................................................................. 3–7
3.6.5 Replacing the RAID Array Controller ............................................... 3–8
3.6.6 Replacing the EMU Board................................................................. 3–9
3.6.7 Replacing the UPS .......................................................................... 3–11
3.7 Differential/Wide UltraSCSI Bus ........................................................ 3–11
3.7.1 Reconfiguring the SCSI Bus ............................................................ 3–12
3.8 Replacing the Controller Memory Cache Modules.............................. 3–16