Compaq StorageWorks TM RAID Array 3000 Pedestal Storage Subsystem Servisní příručka Strana 42

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____________________ Notes ____________________
Only the HSZ70, HSZ80, HSG60, and HSG80 are capable of
supporting multiple-bus failover (SET MULTIBUS_FAILOVER
COPY = THIS_CONTROLLER).
Partitioned storagesets and partitioned single-disk units
cannot function in multiple-bus failover dual-redundant
configurations with the HSZ70 or HSZ80. You must delete any
partitions before configuring the controllers for multiple-bus
failover.
Partitioned storagesets and partitioned single-disk units are
supported with the HSG60 and HSG80 and ACS V8.5 or later.
Figure 1–7 shows a cluster configuration with dual-shared SCSI buses and a
storage array with dual-redundant HSZ70s. If there is a failure in one SCSI
bus, the member systems can access the disks over the other SCSI bus.
Figure 1–7: NSPOF Cluster Using HSZ70s in Multiple-Bus Failover Mode
Networks
Host Bus Adapter (ID 7)
Member System 1 Member System 2
Tru64
UNIX
Disk
Host Bus Adapter (ID 6)
Host Bus Adapter (ID 6)
Host Bus Adapter (ID 7)
HSZ70
StorageWorks
RAID Array 7000
HSZ70
ZK-1594U-AI
Memory
Channel
Interfaces
Memory Channel (mca0)
Memory Channel (mca1)
Memory Channel (mca0)
Memory Channel (mca1)
Figure 1–8 shows a cluster configuration with dual-shared Fibre Channel
buses and a storage array with dual-redundant HSG80s configured for
multiple-bus failover.
1–16 Introduction
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