David,
Great catch on the 100Mbit card auto negotiate thing. Whew. Forget
that and you miss breakfast the next morning too.
Kelly J. Lipp
VP Manufacturing & CTO
STORServer, Inc.
485-B Elkton Drive
Colorado Springs, CO 80907
719-266-8777
lipp AT storserver DOT com
-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
David Longo
Sent: Wednesday, September 05, 2007 6:21 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: [ADSM-L] Insight into improving restores needed
I will just add 2 quick things to check.
1. You say TSM server is GB, probably all the clients are not though.
For the ones that are 100MB Nic's - DOUBLE CHECK before starting restore
at DR site that they and the Ethernet Switch ports they connect to are
set to 100MB Full Duplex - not auto negotiate. Many people have lost
hours of time, trying a restore with auto set.
2. In your test restores, you will probably find cases where there is a
folder/directory or more on a server that has jillions of files.
Hint is, if you just sit and watch the files scroll by in a text window,
it will be obvious when you hit this. One example is Oracle log and or
cache files. Probably DBA or responsible party has not been cleaning
up!
(Some directories can get many similar named files per day, after a year
you have 365 spots on tapes to restore. And that may be the only thing
left there after a few months.) You just have to watch restore
occasionally to see this.
On some systems, eliminating these files can cut restore time in half on
next restore test. Personal experience here!
David Longo
>>> Nicholas Rodolfich <nrodolfich AT EJGH DOT ORG> 9/5/2007 4:05 PM >>>
Hello All,
Thanks for your help!
I work at a medical institution and there is a big push to get our DR
procedures in order. We will be using a Sungard facility for our DR
activities and we will have to restore 4-6 AIX servers (2 HA clusters 1
DB with 1Tb and one apps on another cluster) and 20-25 Wintel platforms
with various applications, DBs, Novell, etc.
We have a 3584 Library with 16 drives (8 LOT1 and 8 LTO2) and a 55A with
4CPUs and 12Gb RAM. Gb NICs and will have like equipment at the DR
facility.
Some tests have revieled an extended time to restore due to many volumes
being loaded to perform a restore. I am looking for some empirical
strategies, white papers, advice, etc. to help me improve this situation
without loads of money of course! I am not ruling out any method
including backup sets, archive schedules, collocation, etc.. I can't
seem to find what I need from IBM websites regarding the gotcha's.
I need the "fastest way" shy of a $10M hot site strategy so I am going
to the mountain! I appreciate you help!!
Nicholas
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