|Date: ||Mon, 31 Jul 2000 16:20:11 GMT|
|Sender: ||"SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>|
|Organization: ||Deja.com - Before you buy.|
|Subject: ||Re: SAS slow on RAID 5 Array?|
Raid 5 is for reliability, not for speed. You'd need to check out
_all_ the specs, but I think you will find that normal NT disk striping
is faster than Raid 5, and that Raid 3 can be about twice as fast as
The bottom line is, if you want to be positive that you don't lose any
data, then Raid 5 is the hot setup. If you want to MOVE data faster,
there are other 'methods'.
In article Rob Rohrbough <Rob@ROHRBOUGH-SYSTEMS.COM> wrote:
> Note that you have to activate Perfmon counters for disk IO (which
> adds overhead - why they are off by default). ...
> > firstname.lastname@example.org wrote:
> > > ...We were running SAS on an NT 4 workstation. Now we bought a
> > > dedicated SAS workstation (an HP LC 2000 server, Hp netraid 1si
> > > controller, nt 4 server with sp6a). Our objective was to run SAS
> > > jobs faster. We put in six 18gig hot swap drives and configured
> > > it for Raid 5 (hardware). However,...
> > > Anyone know why? Is it because the new server has a raid 5 ...
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