ADSM-L

Re: Disaster recovery with copy storage pools.

2002-07-28 23:52:53
Subject: Re: Disaster recovery with copy storage pools.
From: Steve Harris <Steve_Harris AT HEALTH.QLD.GOV DOT AU>
Date: Mon, 29 Jul 2002 13:51:48 +1000
Do you do client compression?
If you have compressible data this may be a good way to reduce the amount of 
data to be transferred, at the expense backup speed (e.g. I have an several 8 
way clients with big pipes but I'm limited to by compression running a single 
CPU at max whilst the others sit idle. )

It can also improve efficiency of non-tape resources - like diskpools.

Steve Harris
AIX and TSM Admin
Queensland Health, Brisbane Australia

>>> seay_pd AT NAPTHEON DOT COM 28/07/2002 1:53:12 >>>
This may be a math problem.  How much data are you trying to send over the
T1 daily.  A T1 is 1.454Mbits/sec which after taking your stack overhead off
is about 1.1Mbits or about 145KBytes/sec.  In 24 hours you can send about
12.5GB.  So, just remind your auditors this is the case and they need to
write a finding that the data center does not have enough budget to meet the
audit requirement.  Then management makes the decision as to whether they
can stay in business if they do not mirror the data.

CTAM looks real good when all said and done.  AKA. Chevy Truck Access
Method.

Paul D. Seay, Jr.
Technical Specialist
Naptheon Inc.
757-688-8180


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