On Tue, 30 Nov 2004, William Stucke wrote:
> Adam Aube said: -
>
>> The only caution about RAID I have seen is that RAID-5 will kill disk
> performance with Squid (due to its usage profile)
>
> How? Why? Please explain. Just because the FAQ says so doesn't make it true,
> or explain why.
RAID-5 hates random writes, and Squid causes a lot of random writes.
See any RAID paper on when the different RAID levels is suitable. The
Squid I/O profile is lots of random read/writes, more writes than reads.
Regards
Henrik
Received on Thu Dec 09 2004 - 09:53:14 MST
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