FUJITSU T5140 - Manual (Page 78)

56 SPARC Enterprise T5140 and T5240 Servers Administration Guide • February 2008
3. To check the status of a RAID mirror, type the following command:
The preceding example indicates that the RAID mirror is still resynchronizing
with the backup drive.
The following example shows that the RAID mirror is synchronized and online.
The disk controller synchronizes IM volumes one at a time. If you create a second IM
volume before the first IM volume completes its synchronization, the first volume’s
RAID status will indicate RESYNCING, and the second volume’s RAID status will
indicate OK. Once the first volume has completed, its RAID status changes to OK, and
the second volume automatically starts synchronizing, with a RAID status of
RESYNCING
.
Under RAID 1 (disk mirroring), all data is duplicated on both drives. If a disk fails,
replace it with a working drive and restore the mirror. For instructions, see
“To
Perform a Mirrored Disk Hot-Plug Operation” on page 64 .
For more information about the raidctl utility, see the raidctl(1M) man page.
▼ To Create a Hardware Mirrored Volume of the
Default Boot Device
Due to the volume initialization that occurs on the disk controller when a new
volume is created, the volume must be configured and labeled using the format(1M)
utility prior to use with the Solaris Operating System (see
“To Configure and Label a
Hardware RAID Volume for Use in the Solaris Operating System” on page 59 ).
Because of this limitation, raidctl(1M) blocks the creation of a hardware RAID
volume if any of the member disks currently have a file system mounted.
# raidctl
RAID Volume RAID RAID Disk
Volume Type Status Disk Status
--------------------------------------------------------
c0t0d0 IM RESYNCING c0t0d0 OK
c0t1d0 OK
# raidctl
RAID Volume RAID RAID Disk
Volume Type Status Disk Status
------------------------------------------------------
c0t0d0 IM OK c0t0d0 OK
c0t1d0 OK