[mythtv-users] Where are those new 1TB drives?

Dan Ritter dsr-myth at tao.merseine.nu
Mon Mar 12 15:13:07 UTC 2007


On Mon, Mar 12, 2007 at 09:06:24AM +0100, Stef Coene wrote:
> All the RAID talk on this list is fun to read.
> But "real" enterprices raid systems are using battey backed-up read and write 
> caches.  And ones you have these, the raid level doesn't matter anymore.  

It certainly does.

> Performance is allmost the same for all raid levels, so raid5 is the best 
> choice because of the cache.

That's highly unlikely to be true.

> Do you know that they changed the cache algorthm some time ago so you get the 
> _same_ performance with _halve_ the cache size ?

"They"? "the cache algorithm"? There's a cabal which enforces
The One True Way of RAID?

-dsr-

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