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Volume Write-Back Cache for RAID1

Tags:
  • NAS / RAID
  • Cache
  • Hard Drives
  • Storage
Last response: in Storage
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December 7, 2009 11:38:01 AM

Is it recommended to enable volume cacheing for a RAID 1 volume with hard disk caches already enabled? This is in the context of Intel ICH 8/9/10 Sata RAID and SBS2008 with UPS backup.

More about : volume write back cache raid1

a b G Storage
December 8, 2009 3:59:55 AM

I'm not that knowledgeable about RAID, but I think enabling the volume cache when HD cache already is would slow things down, since the PC has to read/write to both?
a b G Storage
December 8, 2009 4:23:29 AM

For raid 1 I would leave it off. The point of it is speed at the cost of some data integrity. Your battery backup should help avoid that. With raid 1 there is some benefit, but the raid 0 and 5 see the most gains.

http://blogs.techrepublic.com.com/window-on-windows/?p=...

Take a look.
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