Re: [HPDD-discuss] Bringing up FS missing one OST
Brock,
You can include an "exclude" to the mount command. Something like:
mount -o exclude=<fsname>-OST00XX -t lustre <dev> <dir>
After mounting you can manually disable that OST as well. The 1.8 ops manual has
directions (section 4.3.13 on the one I have). Something like this on the Lustre clients
and the MDS.
lctl set_param osc.<fsname>-<OST name>-*.active=0
There's other options for handling iffy OST's in that section as well.
--
Brett Lee
Sr. Systems Engineer
Intel High Performance Data Division
-----Original Message-----
From: hpdd-discuss-bounces(a)lists.01.org [mailto:hpdd-discuss-
bounces(a)lists.01.org] On Behalf Of Brock Palen
Sent: Monday, June 17, 2013 2:15 PM
To: hpdd-discuss(a)lists.01.org
Subject: [HPDD-discuss] Bringing up FS missing one OST
We suffered a power problem and one of our lustre 1.8 luns is in bad shape.
Our service has already been down a while.
Is there any special process for bringing up lustre and not having commands
hang on the lustre mount with one OST missing?
Brock Palen
www.umich.edu/~brockp
CAEN Advanced Computing
brockp(a)umich.edu
(734)936-1985
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