[Veritas-bu] Using MPX causing disk access times to skyrocket
2002-11-14 14:04:37
Subject: |
[Veritas-bu] Using MPX causing disk access times to skyrocket |
From: |
Jason.Ahrens AT telus DOT com (Jason Ahrens) |
Date: |
Thu, 14 Nov 2002 12:04:37 -0700 |
> -----Original Message-----
> From: Geibel, Jonathan [mailto:Jonathan.Geibel AT disney DOT com]
> Sent: Thursday, November 14, 2002 1:24 PM
> To: Mark Evangelista
> Cc: veritas-bu AT mailman.eng.auburn DOT edu
> Subject: Re: [Veritas-bu] Using MPX causing disk access times to
> skyrocket
>
>
>
> so that's disk *access* time not necessarily disk
> throughput.. one guess
> is that when you multistream from one disk to two drives (each drive
> accepting two streams) netbackup is going to have to bounce between
> writing stream 1 and writing stream 2.. it's not a very intelligent
> streaming mechanism if I'm remembering correctly..
I don't remember where from, but someone told me that NetBackup actually did
some intelligent work when multi-stream was enabled, and would not multi
stream from partitions on the same disk.
Is this in fact false?
Jason
--
Jason Ahrens, Hosting Analyst
TELUS Enterprise Solutions
http://www.telus.com
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