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Sun Blade T6340 Server Module Installation and Administration Guide • April 2010
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
SYNC
, and the second volume’s RAID status will indicate
OPTIMAL
. Once the first volume has completed, its RAID status changes to
OPTIMAL
, and the second volume automatically starts synchronizing, with a RAID
status of
SYNC
.
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 51
.
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 46
). 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.
This section describes the procedure required to create a hardware RAID volume
containing the default boot device. Since the boot device always has a mounted file
system when booted, an alternate boot medium must be employed, and the volume
created in that environment. One alternate medium is a network installation image
in single-user mode. (Refer to the
Solaris 10 Installation Guide
for information about
configuring and using network-based installations.)
#
raidctl -l c1t0d0
Volume Size Stripe Status Cache RAID
Sub Size Level
Disk
----------------------------------------------------------------
c1t0d0 136.6G N/A OPTIMAL OFF RAID1
0.0.0 136.6G GOOD
0.1.0 136.6G GOOD
