[Lustre-discuss] Quota performance

2008-09-24 Thread Mag Gam
I was wondering if we should implement quotas for our students but is there a downside such as performance? Previously, we implemented quotes using vxfs and we noticed a significant performance hit and the users were not happy. So, are there any downsides such as performance loss when using quotas?

Re: [Lustre-discuss] Quota performance

2008-09-24 Thread Andreas Dilger
On Sep 24, 2008 06:11 -0400, Mag Gam wrote: > I was wondering if we should implement quotas for our students but is > there a downside such as performance? Previously, we implemented > quotes using vxfs and we noticed a significant performance hit and the > users were not happy. So, are there any

Re: [Lustre-discuss] Quota performance

2008-09-28 Thread Mag Gam
Thanks Andreas. We are planning to implement 250GB per user. Do you think there will be a performance degration? On Wed, Sep 24, 2008 at 4:11 PM, Andreas Dilger <[EMAIL PROTECTED]> wrote: > On Sep 24, 2008 06:11 -0400, Mag Gam wrote: >> I was wondering if we should implement quotas for our stude

Re: [Lustre-discuss] Quota performance

2008-09-29 Thread Craig Tierney
Mag Gam wrote: > Thanks Andreas. We are planning to implement 250GB per user. Do you > think there will be a performance degration? > We put a requirement on our integrator to ensure that measured performance was with quotas turned on. We have seen enough other filesystems were the performance p