[Lustre-discuss] [Fwd: New OST lost quotas]
Joseph Farran
jfarran at uci.edu
Thu May 21 08:46:21 PDT 2009
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 <jfarran at uci.edu>
>> Reply-To: jfarran at uci.edu
>> To: lustre-discuss at lists.lustre.org
>>
>>
>>
>> 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-ib at 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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