From: Centifonti, Mark (mark.centifonti@ag.state.nj.us)
Date: Mon Mar 03 2003 - 10:34:13 EST
Hi Managers:
Hopefully I can get some advice regarding the recovery of my system drives.
The Raid Array 450 (where the drives are located) inadvertently had a power
cut off. The operating system was shut down before the power was cut to the
raid array however. Should have done a SHUTDOWN THIS_CONTROLLER first. This
led to the cache module retaining unflushed data which was not written back
to the disk(s), hence when I tried to reboot the system I got console
message, "could not open DKB200". I tried doing a "RESTART THIS_CONTROLLER"
to reset the controller and "CLEAR_ERRORS THIS_CONTROLLER INVALID_CACHE and
CLEAR_ERRORS UNWRITABLE_DATA, but this did not work. I made the mistake of
reseating the 2 mirrored system drives under LSM, only to have an amber
light start blinking on 1 of them(1 of 2 in the mirror), and the controller
setting 1 of the failed drives in "MIRSYS" to "FAILEDSET" status. The other
1 is ok. Is there any way to get the system drives back when they're in this
status?
The system drives are mirrored under LSM with 1 drive in container "MIRSYS"
marked as part of a "FAILEDSET" (DISK120)and the other looks ok(no amber
light blinking) (DISK220)(RZ29B-VA) 4.3G. Can I just remove the 1 with the
blinking light from the mirror and reboot using (DISK120), or do I have to
remove the mirror "UNMIRROR" entirely and try and reboot from the drive that
looks ok and remirror after I get a new drive? I also have an exact drive
(RZ29B-VA) that I can remove form an unused container to replace DISK120 and
not "UNMIRROR".
I also have 2 other containers that were presented to the system but are not
in use. They are RZ29B-VA 4.3G drives. I could use these if "MIRSYS" is not
recoverable.
In addition to the default system domains I have 3 oracle domain data drives
that are fine and have no problem. The data drives are Raid 5 with ADVFS
file structure. (RZ1DF-VW) 9.1G.
What would be the best course of action here? Thanks in advance for your
help.
P.S. If I 'm not totally clear on this situation I can supply further info
if needed. Thanks.
-------------------------------------
Mark Centifonti
Systems Administrator
NJ. Dept. of Agriculture
New Warren & Market St.
Trenton, NJ. 08625-330
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