8-STABLE Slow Write Speeds on ESXI 4.0
aw1 at stade.co.uk
Tue Aug 10 02:25:21 UTC 2010
On Mon, Aug 09, 2010 at 09:11:24AM -0700, Jeremy Chadwick wrote:
> FWIW, Workstation 7.1 is fairly adamant about stating "if you want
> faster disk I/O, pre-allocate the disk space rather than let disk use
> grow dynamically". I've never tested this however.
Anecdotal, as I have no comparative performance figures to hand, but
under VMware Server 2 on Windows, performance of non pre-allocated disks
is dire and SCSI emulation is better than IDE.
Anything hit with a big enough hammer will fall apart.
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