[horde] Bottleneck ? CPU or HDisk IO or RAM

Rob MacGregor rob.macgregor at gmail.com
Tue Feb 3 08:06:01 UTC 2009


On Tue, Feb 3, 2009 at 04:51, Linux Advocate <linuxhousedn at yahoo.com> wrote:
> michael, with regards to  the imap bottleneck will sata drives cut it? and yes these users do like to maintain 10,000 messages in their inbox ;)

The answer to that will depend on a mountain of things, not least:

1) How many *concurrent* users?
2) What IMAP server?
3) What configuration of SATA drives?  A single 1 TB drive will be
slower to read than a pair of 1 TB in a RAID0, which will be slower
than 4 half TB drives in a RAID10.  Good quality (ie expensive) SATA
RAID will be faster than cheap hardware RAID, and software RAID may be
faster than cheap hardware RAID.
4) What else is the host doing?

-- 
                 Please keep list traffic on the list.

Rob MacGregor
      Whoever fights monsters should see to it that in the process he
        doesn't become a monster.                  Friedrich Nietzsche


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