How can I disable Windows filesystem caching

[johnny99]

Hi

We are running some performance tests on some of our SAN fabrics and some of the SAN attached disksystems.

To get the right picture we need to make sure that Windows doesn't do any filesystem caching.

Can anyone tell me how to disable Windows Filesystem caching?

/johnny

 

[pagy]

Device Manager - Hardware - Disk Drives - Polices Tab - and then uncheck Enable write caching.

What type servers are these??, if HP and you have the HP array manager installed it disables windows write caching by default

Paul
MCSE


"Two things are infinite: the universe and human stupidity; and I'm not sure about the the universe."
Albert Einstein

 

[johnny99]

Thanks

The servers we will run the tests on are anything from a small HP blade, IBM blades, HP8640r and HP SuperDomes and what else we have standing around.

In generel all servers use Emulex HBA's.

I also need to disable read caching, not only write caching.

/johnny

 

[pagy]

I don't honestly know if you can disable read caching , I remember on Win 9x workstations there was a reg hack to do it but I seem to recall the particualr reg key not even existing in NT and later Microsoft OS.

Paul
MCSE


"Two things are infinite: the universe and human stupidity; and I'm not sure about the the universe."
Albert Einstein