From: Amos Jeffries <squid3_at_treenet.co.nz>
> 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.
Yes but, as long as squid does not handle disk crashes gracefully, I am stuck with RAID...
From: Marcus Kool <marcus.kool_at_urlfilterdb.com>
> Stripes need be be larger than the average object size to have
> concurrent access to more than one object at the same time.
> The *average* objects size is 13 KB so to be on the safe side
> I would use a stripe size of 32K or more.
> The optimal size also depends on the file system type that you use.
So, I guess a big stripe (our average object sizes are 1.5M for one cache and 70K for another) would be better to minimize the seeks...
Thx to both,
JD
Received on Tue Dec 08 2009 - 10:41:50 MST
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