Recommendations; Updating Physical Disk Firmware; Replacing Physical Disks - HP AH226A - Smart Array E500/256MB Controller RAID Support Manual

4. Reassign the original device file to the new I/O path using sasmgr with the replace_tgt
qualifier:
# sasmgr replace_tgt -D /dev/sasd0 -q old_tgt=/dev/dsk/c3t2d0 -q new_tgt_hwpath=0/4/1/0.0.0.1.0
WARNING: This is a DESTRUCTIVE operation.
This might result in failure of current I/O requests.
Do you want to continue ?(y/n) [n]...y
LUN has been replaced with new Target.
NOTE:
io_redirect_dsf(1M) command. For more details, see the io_redirect_dsf(1M)
manpage. To view the manpage, enter this command: man 1m io_redirect_dsf
NOTE:
on devices that have the S/W state NO_HW or CLAIMED.
5. The S/W state is swapped. Use ioscan to verify that you can access the disk using the
original device file:
# ioscan -fnC disk
Class
================================================================================
disk
disk
disk
disk
disk
disk
disk

Recommendations

Updating Physical Disk Firmware

HP recommends that you consider the following when you update the firmware of physical
disks attached to the HP 8 Internal Port SAS Controller with sasmgr(1M):
• If you are updating the firmware on more than one disk, do not issue multiple disk firmware
download commands on the same command line. Use individual commands for each disk
that is to be updated.
• If the disk firmware download to a disk that is part of a RAID volume fails or is terminated,
the controller must be reset using the sasmgr(1M) reset command:
sasmgr -f reset -D /dev/sasdX
(where X is the instance of the SAS controller).
For example:
# sasmgr -f reset -D /dev/sasd0
Device (/dev/sasd0) has been RESET.

Replacing Physical Disks

HP recommends that you consider the following when you replace spare physical disks in a
RAID volume controlled by the HP 8 Internal Port SAS Controller:
• Before replacing a spare disk, delete it first using sasmgr(1M):
sasmgr delete -D /dev/sasdX -q raid -q spare
(where X is the instance of the SAS controller).
To perform the equivalent operation using a persistent DSF, you must use the new
The sasmgr replace_tgt and io_redirect_dsf(1M) commands only work
I H/W Path Driver
0 0/0/2/1.0.16.0.0 sdisk
/dev/dsk/c0t0d0
1 0/4/1/0.0.0.0.0 sdisk
/dev/dsk/c3t0d0
2 0/4/1/0.0.0.1.0 sdisk
3 0/4/1/0.0.0.2.0 sdisk
/dev/dsk/c3t2d0
4 0/4/1/0.0.0.3.0 sdisk
/dev/dsk/c3t3d0
5 0/4/1/0.0.0.4.0 sdisk
/dev/dsk/c3t4d0
6 0/4/1/0.0.0.5.0 sdisk
/dev/dsk/c3t5d0
/dev/dsk/c3t5d0s1
/dev/dsk/c3t5d0s2
/dev/dsk/c3t5d0s3
S/W State H/W Type
CLAIMED DEVICE
/dev/rdsk/c0t0d0
CLAIMED DEVICE
/dev/rdsk/c3t0d0
NO_HW DEVICE
CLAIMED DEVICE
/dev/rdsk/c3t2d0
CLAIMED DEVICE
/dev/rdsk/c3t3d0
CLAIMED DEVICE
/dev/rdsk/c3t4d0
CLAIMED DEVICE
/dev/rdsk/c3t5d0
/dev/rdsk/c3t5d0s1
/dev/rdsk/c3t5d0s2
/dev/rdsk/c3t5d0s3
Descripn
TEAC DV-28E-N
HP DG072A8B54
HP DG072A8B54
HP DG072A8B54
HP DG072A8B54
HP DG072A8B54
HP HP IR Volume
Recommendations 67