Veritas-bu

Re: [Veritas-bu] Open Q to the List: What is the "Best" Filesystem for a staging disk

2007-11-22 04:42:14
Subject: Re: [Veritas-bu] Open Q to the List: What is the "Best" Filesystem for a staging disk
From: "Gregory Demilde" <gdemilde AT gmail DOT com>
To: "Jon Bousselot" <jon_bousselot AT sd.vrtx DOT com>
Date: Thu, 22 Nov 2007 10:23:12 +0100
I haven't tested ZFS yet.

The problem is that after a while the performance on UFS goes dramatically down due to fragmentation.  VxFS performs better as it handles better the fragmentation.

Greg

On Nov 21, 2007 9:06 PM, Jon Bousselot <jon_bousselot AT sd.vrtx DOT com> wrote:
I've done only tests using disk staging with JBOD and SAN attached disks.

UFS performed pretty well.
VxFS was a bit slow on clearing image files, but that wasn't a huge
problem as the image cleanup didn't always happen when I was trying to
write new ones.  Since it was VxFS, I could manage it using our standard
tool set and I knew it would most likely survive a host crash and not
corrupt itself.
ZFS had a lot of overhead that my test system didn't appreciate, but did ok.

If I had a faster system, performance might be a non-issue, and the
reasons for picking one would be for the feature set.

-Jon
> Good evening all,
>
> I'm in the process of setting up another media server which will have
> 7TB of staging disk.
>
> What have your experiences been with filesystem type X's performance
> over Filesystem type Y ?
>
> I'm running on a Solaris media server, so my interest directly lies with
> UFS, VXFS, ZFS, or QFS. But I am interested in hearing your thoughts /
> experiences.
>
> Thanks.
>
> Unfortunatly it is late, playing on a SAN when tired IS dangerous so I'm
> going to post this and see what get's stirred up.
>
> Regards
>
> Adam Mellor
> Senior Unix Support Analyst
> CF IT TECHNOLOGY SERVICES
> Woodside Energy Ltd.





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Gregory DEMILDE
Email : gdemilde AT gmail DOT com

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