HP A3550A - High Availability Disk Arrays Model 20 Storage Enclosure User Manual page 113

High availability scsi disk array
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Failing
Continue after
component
failure?
Disk module
Yes
SP
No
Fan pack
Yes
Power supply
Yes
SCSI-2 adapter
No
SCSI-2 cable
No
4-6
What happens and how to recover
Applications continue running. System Administrator or
service provider replaces module.
Disk array fails. System Administrator or service provider
replaces SP and the System Administrator restarts operating
system.
Applications continue running. System Administrator or
service provider replaces module.
If a redundant power supply module is present, applications
continue running; otherwise, disk array fails. Service provider
replaces power supply. The System Administrator restarts the
operating system if necessary.
I/O operations to array disk units fail. Authorized service
provider replaces adapter and System Administrator restarts
operating system and applications.
I/O operations to array disk units fail. Authorized service
provider replaces cable and System Administrator restarts
operating system and applications.

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