Bad LUN0 on VA7400

[Greg Traud_2]

Folks,
I have an old VA7400, which is in warning condition. We believe we have tracked down the offendin LUN to LUN0, which is a very small LUN (10mb).
We've tried an armrbld -r , which got to 99%, and then failed.
After that, we did a logprn of just today's logs, and found one particular disk failing repeatedly.

I've read that LUN0 is quite important to the entire SAN.
My question is this:
Can I backup LUN0 prior to downing the questionable disk?
Can I restore LUN0 if I blow it away thru some error?

[Torsten.]

Hi,

there is no content in this LUN0, it has to be just there!

Most of the operation system stop searching for LUNs, if there is no LUN0.

If you have no LUN0 or you "hide" it by using secure manager, a booting server can't find other LUNs.

Regarding the disk: consider to replace it.

[Arunkumar.B]

Greg:
Pls upload the armdiag o/p
armdiag -I -if tmp/vaop.txt vaname(Alias name)


Cheers
Arunkumar.B

[Dave Thomson]

We had similar issues and lost our entire data store. Which disk is failing 1-14 ?

I recomend you do not replace the failing disk unless your data backups are 100%

[Greg Traud_2]

>Pls upload the armdiag o/p
>armdiag -I -if tmp/vaop.txt vaname(Alias name)

I tried to run this command, but it didn't complete.

[Greg Traud_2]

the armdiag command fails at:

Sending: sh LC_ALL=en_US.iso88591 armperf -c LUN -x COMMA -s 122600002006 DPL-SAN

[Arend Lensen]

First try armlog -c
later do a logprn -v all
as well

[Arend Lensen]

Sorry update failed i mean:
logprn -t all -v

[Greg Traud_2]

Arunkumar.B,
I finally did get the armdiag to complete. The zip file is over seven mb. Do you have an ftp site where I could send this?

My email is greg dot traud at dplinc dot com

We can continue this sort of logistical discussion of the forum.