NEC Express5800/R320a-E4 User Manual page 71

Restoring the redundant configuration manually
This section provides information on how to replace a failing internal disk and restore duplication.
IMPORTANT:
This must be operated by root user.
While the replaced disk is restoring to the RAID configuration, do not stop/restart the system
when the reconfigured each RAID device is in RECOVERY. Wait until their status turns to
DUPLEX. Note that the wait time is proportional to the disk volume.
In the command prompt of ftdiskadm, select [Remove Half Disk (RAID1)] to specify the
1.
slot number of the internal disk to replace, and isolate the disk from the RAID
configuration.
Remove the disk from the system, and then, insert a new disk.
2.
Wait approximately
3.
resynchronization.
If the system does not perform resynchronization automatically in step 3, recover RAID
4.
manually by selecting [Repair Mirroring Arrays (RAID1)] in ftdiskadm.
The following is an example of command prompt for the procedure from isolating the internal disk
stored in the slot 9 (PCI module 1 - Slot 0) through restoring redundancy.
# ftdiskadm
Command action
1 List RAID Arrays
2 List Internal Disks
3 Make Mirroring Arrays
4 Repair Mirroring Arrays (RAID1)
5 Delete Mirroring Arrays (RAID1)
6 Remove Disk Partitions (RAID1)
7 Make Striping Array
8 Delete Striping Array
c Configurations
q Quit
Command: 6 (Isolate the disk specified with the slot number
from the RAID configuration.)
[Remove Disk Partitions (RAID1)]
* Which SCSI SLOT? [1-16] 9
mdadm: hot removed
mdadm: hot removed
mdadm: hot removed
mdadm: hot removed
five minutes until the
(RAID1)
(RAID1+0)
(RAID1+0)
/dev/sdi5
/dev/sdi3
/dev/sdi2
/dev/sdi1
Linux Setup and Operation 3-5
system automatically performs