Iopn.diskx Enable Mirrored Disk - HP NetServer AA 4000 Administrator's Manual

Chapter 5

IOPn.Diskx Enable Mirrored Disk

Warning: Using this command may cause the other member of this mirror
set to become the target of a mirror set copy. Read all instructions
in this section before continuing.
This command attempts to enable a mirrored SCSI disk, indicated by
faulted. The disk is enabled without having to reboot the IOP under most circumstances.
A disk is faulted when it cannot respond to a read or write request. The disk's failure to respond
to a read or write request may be transient or permanent. For example, a transient failure may
be the result of improper SCSI cable termination, resulting in an intermittent failure. A
permanent failure may be the result of a faulted disk component correctable only by disk
replacement.
This command is used to enable a disk that had a transient failure. If the disk has experienced a
permanent failure, it must be replaced. For instructions about how to replace a disk, refer to
Replacing a Failed Mirrored Disk
A disk is also regarded as faulted if it failed during previous operation of its IOP. For example,
if a disk experienced read or write errors and was deemed to be faulted, then the faulted state
would remain across IOP reboots, even if you replaced the faulted disk. In this case, you must
explicitly enable the disk to clear its faulted condition.
Command IOPn.Diskx Enable Mirrored Disk
Console Syntax MTCCONS IOPn.Diskx Enable Mirrored Disk
n – the ID number of the IOP (1 or 2)
Variables
x – the ID number of the SCSI disk
The disk remirroring process is initiated, if necessary. If a disk is enabled
Results
and it becomes a mirror copy target, but the copy has not started yet, the disk
remains offline until the copy begins; it does not transition to online until the
mirror copy begins.
If this command does not succeed, examine the event log for details. You
must shut down the applicable IOP as part of the problem resolution process.
See Also
IOPn.Diskx Reset Mirror Copy
IOPn.ScsiProvider Show Mirror Status
on page 236.
Commands
, that is disabled or
Diskx
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