Re: [squid-users] RAID stripes sizes...

From: Amos Jeffries <squid3_at_treenet.co.nz>
Date: Tue, 08 Dec 2009 11:15:18 +1300

On Mon, 7 Dec 2009 09:29:16 -0800 (PST), John Doe <jdmls_at_yahoo.com> wrote:
> Hi,
>
> I was just wondering if squid has a prefered RAID stripe size; as in the
> smaller/bigger the better...
> I did not find it in the squid RAID wiki...
> If I understand it correctly, the smaller the RAID stripe, the more
disks
> involved in a file read/write (file is spread on more disks).
> I see the pros (more disks, more bandwidth) and the cons (too many
> concurrent seeks).
> So, from experience, in a reverse proxy setup, which one is the best
> option?

Squid for cache storage both reads and writes in fixed discrete 4096 byte
chunks to random files in the cache in random sequence. COSS is the only
exception so far. It reads/writes in MB chunks.

JBOD is best, on fast disks.

Amos
Received on Mon Dec 07 2009 - 22:15:23 MST

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