Yes, this correct (I think there was some discussion on the mailing list a 
little while back).

The quota is the space used on disk, so if you run compression its the 
compressed size, tape hsm don't count until you recall them.

I assume mcstore is the same, I.e. Only counts on recall, but I haven't tested 
this.

Simon

--

Simon Thompson

Research Computing Team, IT Services

+44 121 415 8675

-----Original Message-----
From: Bryan Banister 
[[email protected]<mailto:[email protected]>]
Sent: Tuesday, May 03, 2016 09:33 PM GMT Standard Time
To: gpfsug main discussion list
Subject: Re: [gpfsug-discuss] Data replication and fileset quotas

Yes, I believe that is the case due to the fact that every file is replicated 
therefore taking twice as much space within the file system.
-Bryan

From: [email protected] 
[mailto:[email protected]] On Behalf Of Buterbaugh, 
Kevin L
Sent: Tuesday, May 03, 2016 3:27 PM
To: gpfsug main discussion list <[email protected]>
Subject: [gpfsug-discuss] Data replication and fileset quotas

Hi again all,

I have another question on a completely different topic and therefore I decided 
it was better to send two separate e-mails.

For a number of years now we have had a GPFS filesystem where we use filesets 
and set fileset quotas.  Data replication is set to one.  I understand how that 
all works.

We are creating another GPFS filesystem where we intend to also use filesets 
and fileset quotas, but set data replication to two.  Based on my experience 
with data replication on a filesystem that doesn’t use filesets, I am expecting 
that setting data replication to two means that I will need to double the quota 
for each fileset (i.e. if a group has bought 5 TB of space I’ll need to set 
their fileset quota to 10 TB) but haven’t found where that is explicitly 
documented.  Is that correct?

Thanks again, all…

Kevin

—
Kevin Buterbaugh - Senior System Administrator
Vanderbilt University - Advanced Computing Center for Research and Education
[email protected]<mailto:[email protected]> - 
(615)875-9633




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