Hi Andrew.
First, thank you so much. I searched and searched, but some things
are not very obvious to me.
Questions please: When I run that command, does the Lustre file
system need to be off-line (no writes, no appends, only read mode).
If I only need to take that ost off-line, can I simply umounted it?
What is the recommended way?
One last un-related question: When I reboot my OST(s) and/or MetaData
server, the servers go into the "recovery mode" which for us takes
around ~40 minutes to complete. When the OST(s) are recovering and I
am watching them, they seem to be idle simply waiting for a time out.
Not really doing a fsck type of operation. Can I reduce this time to
say 5 minutes?
Thanks again,
Joseph
UCI
Andrew Perepechko wrote:
Joseph,
you have to run "lfs quotacheck -ug" to create the required quota files on the
new OST.
There is no need to run tunefs additionally (since you have already specified
the quota_type setting), but usually you can change permanent parameters
of running lustre filesystem with "lctl conf_param" from mgs.
mgs> lctl conf_param ${FSNAME}-MDT0000.mdt.quota_type=ug
mgs> lctl conf_param ${FSNAME}-OST0000.ost.quota_type=ug
mgs> lctl conf_param ${FSNAME}-OST0001.ost.quota_type=ug
...
By the way, we are going to change this non-obvious interface in the future
lustre releases.
Andrew.
On Tuesday 14 April 2009 20:20:23 Joseph Farran wrote:
Hi. I sent this to the Lustre dist and I don't see my entry.
Do I need to do anything else to enable my post?
Joseph
-------- Original Message --------
Subject: New OST lost quotas
Date: Fri, 10 Apr 2009 15:29:50 -0700
From: Joseph Farran <[email protected]>
Reply-To: [email protected]
To: [email protected]
Hi.
I am currently using Lustre 1.6.6, Redhat 5, with one MDT and two OST
and all is working fine over Infiniband. Group and user quota is also
working on Lustre.
I just added a new OST with the command:
mkfs.lustre --ost --fsname=lustre --param quota_type=ug
--mgsnode=nas-5-4...@o2ib /dev/sdc
The new OST is working, but quotas are gone. My question is, can I
dismount this new OST and run tunefs.lustre on just this OST:
tunefs.lustre --param ost.quota_type=ug /dev/sdc
Or do I need to take Lustre complete off-line and run the tunefs.lustre
on all OST and MTD again?
Thanks,
Joseph
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