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Maintaining Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems
Replacing a faulty disk 69
Replacing a faulty disk 3
This section explains how to replace a faulty disk. The system does not
need to be powered off or rebooted to perform this procedure.
Step 1: Identify the
faulty disk
3
A disk problem is usually indicated in the
/var/adm/messages
file. The
following lines, for example, indicate a disk problem:
Those lines, however, do not tell us which disk has the problem. One way
of finding out is to enter an
ls -l /dev/dsk/c*
command and
search the output for a device description matching that in the warning
message. For example:
That the ”/iommu@0....” information matches the same information in the
warning message indicates that disk c0t2d0 is the faulty disk.
Jun 12 16:27:08 leopard unix: WARNING:
Jun 12 16:27:08 leopard unix: Error for command
’read(10)’ Error Level: R
Jun 12 16:27:09 leopard unix: retryable
Jun 12 16:27:09 leopard unix: Requested Block 0,
Error Block: 0
Jun 12 16:27:09 leopard unix: Sense Key: Media Error
Jun 12 16:27:09 leopard unix: Vendor ’SEAGATE’:
Jun 12 16:27:09 leopard unix: ASC = 0x31 (medium
format corrupted), ASCQ
= 0x0, FRU = 0x9
Jun 12 16:27:09 leopard unix: WARNING:
/sbus@3,0/SUNW,fas@3,8800000/sd@2,0
# ls -l /dev/dsk/c*
.
.
.
lrwxrwxrwx 1 root root 50 Apr 24 15:21
/dev/dsk/c0t2d0s0 -> ../../devices/sbus@3,0/SUNW,fas
@3,8800000/sd@2,0:a
lrwxrwxrwx 1 root root 50 Apr 24 15:21
/dev/dsk/c0t2d0s1 -> ../../devices/sbus@3,0/SUNW,fas
@3,8800000/sd@2,0:b
.
.
.
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