Re: Anyone Using IBM flash Copy for Database Backups?

From: Martin Bach <>
Date: Mon, 02 Nov 2009 15:44:21 +0000
Message-ID: <>

Very valid points-I would like to add that you have a choice of compression algorithm: zlib or bzip2. If you can compromise on the compression ratio, zlib might be something worth trying. And sorry, I haven't used the IBM product yet



Martin Bach
OCM 10g

Mark W. Farnham wrote:

> I'm not, but I am surprised about your situation. I would have expected
> pretty much everything to have gotten faster, not slower.
> Are you cpu bound on the compression? Faster media copying is not going to
> help that. How much of your datawarehouse is actually eligible for change
> from month to month? Is there a partitioning strategy that will combine good
> access with life cycle management?
> mwf
> -----Original Message-----
> From: []
> On Behalf Of Peter Barnett
> Sent: Monday, November 02, 2009 9:50 AM
> To: Oracle-l
> Subject: Anyone Using IBM flash Copy for Database Backups?
> We have several large warehouse databases in the 12T to 15T range. The
[preventing overquoting]
> the IBM estimates for DB2 correlate to Oracle run times?
> Pete Barnett
> Database Technologies Lead
> Regence
Received on Mon Nov 02 2009 - 09:44:21 CST

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