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Performance of Guest and Host (cluster size, SAS, NTFS)

Source: microsoft.public.virtualserver
Sent: 12/07/2006
From: "Tomasz Szymanski" <(email address - cut out)>
Message:

Hi!

I started to think what's the best dependecies of performance between host
operating system and hardware components.

My configuration is as below:

Host:
2 Xeon with VT implemented - HP DL380 G5 - 12 GB RAM.
8x 146 GB SAS (Serial Attached Scsi) conected to controller HP P400.
As a host Windows 2003 R2 x64 Enterprise Editon

Guest:
As guest will be mainly Windows 2003 R2 Enterprise Edition in configuration
of 1 fixed size virtual HD 50GB (size might .

Default cluster size of NTFS (on host and on guest) is usually 4kb cluster.
Defaul stripe RAID5 in array controller is 64 kb.
I've read in manual of array configurator so HP recomends not to change that
default values.
http://h20000.www2.hp.com/bc/docs/support/SupportManual/c00687518/c00687518.pdf
on page 12.

But in fact that Virtual Server *.vhd files are very large files.

So my question is what is the best choice of tuning parameters?
Does anyone has any serious experience?

Best Regards
Tomasz Szymanski
(email address - cut out)

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