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Verifying the Mirror on a Server Module
Running Red Hat Linux 7.3
Log in as root.
1
Type cat/proc/scsi/scsi.
2
•
•
To verify that the two hard drives were both mirrored, look at the partition structure
3
on both hard drives.
NOTICE: After the partitions are displayed, do not press <d >, which allows you to delete the
mirrors.
a
b
c
Type df -h to display the partitions that are currently mounted by the operating
4
system.
•
•
1-4
S er ve r Mo dule B o ard Re plac em e nt
If the command returns the phrase Module: VIRTUAL DISK in the output,
you have a synchronized mirror. For example:
Attached devices:
Host: scsi0
Channel: 00
Module: VIRTUAL DISK
Type:
Direct-Access
If the command returns information about two hard drives, proceed to step 3. For
example:
Attached devices:
Host: scsi0
Channel: 00
Vendor: FUJITSU
Type:
Direct-Access
Host: scsi0
Channel: 00
Vendor: FUJITSU
Type:
Direct-Access
To access hard drive 0, type fdisk -l /dev/sda.
To access hard drive 1, type fdisk -1 /dev/sdb.
Compare the output of both commands. If the partition numbers and sizes on
both /dev/sda and /dev/sdb are identical, the hard drives were part of a RAID 1
mirror.
If all of the partitions are mounted from /dev/sda and no partitions are mounted
from /dev/sdb, /dev/sdb is the secondary drive in the mirror.
If all of the partitions are mounted from /dev/sdb and no partitions are mounted
from /dev/sda, /dev/sda is the secondary drive in the mirror.
Id: 00
Lun: 00
Rev: 1000
ANSI SCSI revision: 02
Id: 00
Lun: 00
Model: MAN3735MP
ANSI SCSI revision: 03
Id: 01
Lun: 00
Model: MAN3367MP
ANSI SCSI revision: 03
Rev: 5507
Rev: 5507