Re: [Veritas-bu] Linux catalog file system

2010-09-15 10:59:39
Subject: Re: [Veritas-bu] Linux catalog file system
From: Justin Piszcz <jpiszcz AT lucidpixels DOT com>
To: Nate Sanders <sandersn AT dmotorworks DOT com>
Date: Wed, 15 Sep 2010 10:59:26 -0400 (EDT)

Using ext3 here on the production systems.

It depends on what your catalog looks like and how many simultaenous 
backup/restores you are doing at any one time.

For some catalogs with 1M+ files I'd suggest ext3, ext4 at some point.
XFS (while it is being worked on) typically does not bode well with many 

Could you use BRTFS / ReiserFS / etc? Yes, but for mission-critical 
systems (master servers) IMO it is best to use what the majority of the 
population use so you do not run into a weird error that causes problems 
down the line.  That is currently ext3, at least with RHEL3-RHEL5.

I used to use XFS for personal use for a long time, it worked great, but 
it was always slow when deleting lots of small files or working with a lot 
of files.  In addition, over the years there were some data loss issue 
with one kernel and I got bitten a couple of times.

I think XFS is great if you are needing a high-performance FS for large 
files, EXT4 as well.  But I would think you would want the most 
stable/tried and true filesystem that the most people use/etc you would 
want to use ext3.


On Wed, 15 Sep 2010, Nate Sanders wrote:

> What are you all using for your catalog filesystem on linux? While ext3
> claims it doesn't need defragging we see a huge performance increase
> when we rebuild the file system once every 6 months. So I'm curious to
> know if XFS or VxFS work any better and/or are supported? I think XFS
> was not support or may still not be.
> -- 
> Nate Sanders            Digital Motorworks
> System Administrator      (512) 692 - 1038
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