Re: AIX Server Configurations -Reply -Reply
1998-09-21 17:24:20
Subject: |
Re: AIX Server Configurations -Reply -Reply |
From: |
Dwight Cook <decook AT AMOCO DOT COM> |
Date: |
Mon, 21 Sep 1998 16:24:20 -0500 |
If this was aimed at me...
We run our own scripts to back up SAP environments...
We push the archives to disk
migrate the disk to tape
leave cached copies on disk
This gives us our most current restore set on disk where we can push a
large amount of concurrent sessions...
We've found that 8-ish concurrent sessions max out a single fddi
Unlike going to or comming straight off tape, we can push concurrent
sessions over two fddi's and double our sessions taking them up to 16.
I believe somewhere in the area of 1:41 hr:min to arch 67,859,465 KB
over two networks... if we used client compression we maxed out their
cpu prior to maxing out a single fddi... in the end, end... the
bottle neck turned out to be the client dasd during restores.
Plus since we were going to dasd we were only limited to the number of
SAP environments we could back up based on the adsm server cpu... and
I don't think that we ever saw this R50 hit over 38 (or 48) percent...
so we could do at least two concurrent sap environments given enough
network band width...
later,
Dwight
______________________________ Reply Separator _________________________________
Subject: Re: AIX Server Configurations -Reply -Reply
Author: Sherry.Jackson (Sherry.Jackson AT TORO DOT COM) at unix,mime
Date: 9/21/98 3:40 PM
How's your throughput on those adapters? Do you think they are a
bottleneck with that many tape drives on one adapter?
We currently use 4 tape drives to complete our offline backup of R/3
and want it to go as quickly as possible, and when the new drives
arrive we want to improve the performance, of course.
Sherry
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- AIX Server Configurations, Sherry Jackson
- Re: AIX Server Configurations, Price, Robert R.
- Re: AIX Server Configurations -Reply, Sherry Jackson
- Re: AIX Server Configurations -Reply, Price, Robert R.
- Re: AIX Server Configurations -Reply, Hilton Tina
- Re: AIX Server Configurations, Dwight Cook
- Re: AIX Server Configurations -Reply -Reply, Sherry Jackson
- Re: AIX Server Configurations -Reply -Reply, Kauffman, Tom
- Re: AIX Server Configurations -Reply, Sherry Jackson
- Re: AIX Server Configurations -Reply -Reply,
Dwight Cook <=
- Re: AIX Server Configurations, Paul Zarnowski
- Re: AIX Server Configurations, Andrew Swift
- Re: AIX Server Configurations -Reply -Reply, Price, Robert R.
- Re: AIX Server Configurations, Brandon Moore
- Re: AIX Server Configurations, Richard Sims
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