EK–SMCPP–UG. A01
iii
Contents
Revision Record ........................................................................................................ ix
About This Guide ...................................................................................................... xi
1
Product Description
1.1 Subsystem Overview ................................................................................................. 1–1
1.2 Major Components .................................................................................................... 1–4
1.2.1 HSZ70 RAID Array Controllers............................................................................. 1–5
1.2.2 SCSI Buses............................................................................................................ 1–6
1.2.3 Single-Ended I/O Module (SE I/O) ........................................................................ 1–7
1.2.3.1 Expanding the UltraSCSI Bus .............................................................................. 1–8
1.2.3.2 Controlling the Internal SCSI Bus....................................................................... 1–9
1.2.3.3 Controlling the External SCSI Bus...................................................................... 1–9
1.2.3.4 Controlling the Fault Bus.................................................................................... 1–9
1.2.3.5 “Warm Swapping” I/O Modules and Cables ....................................................... 1–9
1.3 Error Detection and Reporting ................................................................................. 1–10
1.3.1 Fault Bus ............................................................................................................. 1–10
1.3.2 Environmental Monitor Unit (EMU).................................................................... 1–11
1.3.2.1 Controller Status............................................................................................... 1–11
1.3.2.2 I/O Module Status............................................................................................. 1–12
1.3.2.3 Enclosure Configuration Information................................................................ 1–12
1.3.2.4 EMU Front Panel.............................................................................................. 1–13
1.3.3 Power Verification and Addressing (PVA) Module.............................................. 1–15
1.3.3.1 Monitoring Power Supply Operation................................................................. 1–16
1.3.3.2 Master Enclosure Controlled Power Shutdown ................................................. 1–17
1.3.3.3 Expansion Enclosure Initiated Power Shutdown................................................ 1–18
1.3.3.4 PVA UPS (Uninterruptable Power Supply) Options .......................................... 1–19
1.4 Storage Device SBBs............................................................................................... 1–19
1.5 Power Configuration................................................................................................ 1–20
1.5.1 AC Power Entry Controllers ................................................................................ 1–20
1.6 Power Supply SBBs................................................................................................. 1–22
1.7 Standard (4 + 1) Power Configuration ..................................................................... 1–23
1.8 Redundant (4 + 4) Power Configuration................................................................... 1–25
1.9 ECB SBBs............................................................................................................... 1–26
