I have a Dell PE2590 with a PERC5 handling a 6 disk RAID5 array. Write-back caching is enabled but it's defaulting to write-through. This is obviously murdering performance (writes = 30Mbps vs 300Mbps ...

Windows2000 <P>I need to disable the disk write cache for troubleshooting reasons, but <BR>whenever i reboot it's back on again. <BR>Does anyone know how to disable it permanently.