How do you rebuild your SAS mirror from the OS

[Andy Imm]

It may have been from another server; This is from the right server, which is ok right now. I also had the hard drive replaced.

# sasmgr get_info -D /dev/sasd1 -q raid

Thu Aug 26 10:27:17 2010

---------- LOGICAL DRIVE 1 ----------

Raid Level : RAID 1
Volume sas address : 0x5389f50e4c7a036
Device Special File : /dev/rdsk/c0t0d0
Raid State : OPTIMAL
Raid Status Flag : ENABLED
Raid Size : 139898
Rebuild Rate : 0.00 %
Rebuild Progress : 100.00 %

Participating Physical Drive(s) :

SAS Address Enc Bay Size(MB) Type State

0x500000e1129a01d2 1 1 140014 PRIMARY ONLINE
0x5000c5001d624151 1 2 140014 SECONDARY ONLINE

[Torsten.]

If a drive goes bad the RAID will be degraded and you will get related messages until the drive is replaced and fully synced. The sync should start right after the disk is inserted.

[Andy Imm]

It was probably an hour before I went into the EFI, and started the resync process.

If for some reason that the mirror doesn't resync like it appears for me, is there a command that you can run from the OS to re-sync the mirror?

Thanks for your help,
Andy

[Torsten.]

Now nobody can say if the rebuilt was started or not ...


But the manual says


...

Integrated Mirror

The advantage of an IM is there is always a mirrored copy of the data. An IM
provides data protection for the system boot volume to safeguard critical
information such as the operating system on servers and high performance
workstations. An IM supports two simultaneous mirrored volumes, making an
array, providing fault-tolerant protection for critical data. Typically, one of these
volumes is the boot volume. If a disk in an IM fails, the hot swap capability allows
the volume to be easily restored by replacing the failed disk. The firmware then
automatically re-mirrors to the replaced disk.