Re: [HPDD-discuss] Lustre Pools vs Multiple Lustre File System recommendation
Hi,
I would also consider splitting SAS and SATA to dedicated OSS servers. The reason is that
the performance might get impacted on both pools even if only one of them is getting
hammered. Especially if the disks are connected to the same RAID controller.
BR Marcus
-----Original Message-----
From: HPDD-discuss [mailto:hpdd-discuss-bounces@lists.01.org] On Behalf
Of Kumar, Amit
Sent: den 22 juli 2014 16:05
To: Mohr Jr, Richard Frank (Rick Mohr)
Cc: hpdd-discuss(a)lists.01.org
Subject: Re: [HPDD-discuss] Lustre Pools vs Multiple Lustre File System
recommendation
Makes sense!
I will take this as a discussion item and see what we finalize on this. Thank
youall for your inputs.
Amit
-----Original Message-----
From: Mohr Jr, Richard Frank (Rick Mohr) [mailto:rmohr@utk.edu]
Sent: Monday, July 21, 2014 4:15 PM
To: Kumar, Amit
Cc: Dilger, Andreas; Robin Humble; hpdd-discuss(a)lists.01.org
Subject: Re: [HPDD-discuss] Lustre Pools vs Multiple Lustre File System
recommendation
On Jul 21, 2014, at 4:04 PM, "Kumar, Amit" <ahkumar(a)mail.smu.edu> wrote:
> A follow up question based on your input:
> I was hoping to use quota just so we could keep tabs on the usage: Using
OST pools, do we have to rule out the possibility of using quota feature all
together ? I was hoping to accomplish the following, would quota's work at
any level of the hierarchy?
>
> /lustre/{sas,sata}/<user>
You can still use quotas with ost pools, but the quotas will apply to the
aggregate usage across both the sas and sata pools. If you want to enforce
separate quotas for sas and sata, you would need different file systems.
--
Rick Mohr
Senior HPC System Administrator
National Institute for Computational Sciences
http://www.nics.tennessee.edu
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