ADSM-L

Re: Restore Performance.

2002-08-23 05:45:59
Subject: Re: Restore Performance.
From: Remco Post <r.post AT SARA DOT NL>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Fri, 23 Aug 2002 11:30:24 +0200
On vrijdag, augustus 23, 2002, at 10:00 , Cahill, Ricky wrote:


I'm about to upgrade to 7 LTO drives and fibre (so will have the same
at the
dr site) but from what I can see what I'll gain with the faster drives
I'll
lose from increased tape contention with the higher capacity tapes
(35-70 >
100-200).

Hmmm, but then again, LTO is so much faster than DLT, this is really
significant.

Collocating the offsite isn't an option as it would mean sending offsite
12ish tapes a day and with a retention of 30 days plus some stragglers
thats
a hell of a lot of tapes to call abck from DR.

But, with a 5.1 client and server you can do multi-stream restores,
non-collocated storagepools are really an advantage in that case. That
will help you a lot in case of a large restore. It may even be advisable
to turn collocation off on the primairy pools as well if the manual
tells you that multi-stream restores work on novell.


       .........Rikk

---
Met vriendelijke groeten,

Remco Post

SARA - Stichting Academisch Rekencentrum Amsterdam    http://www.sara.nl
High Performance Computing  Tel. +31 20 592 8008    Fax. +31 20 668 3167

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