Write caching controllers

From: Richards, Brian <brichard_at_pd.state.gov>
Date: Wed, 09 Oct 2002 05:23:49 -0800
Message-ID: <F001.004E42F2.20021009052349@fatcity.com>

Good morning all!

I have a question regarding use of write-caching RAID controllers.

As an NT systems/network admin of some years, and an Oracle 8i DBA-in-training, I had done some homework and gather that both Oracle and industry best-practices suggest avoiding write-caching controllers if possible (to preclude any chance of data loss).

As a result, I had recommended we purchase dual non-caching controllers on the new Compaq ML530s we are about to buy.

Compaq has discontinued the model controller we requested, and now all their controllers include write caching (battery-backed, of course).

We are running a couple of ~10GB instances, not terabyte OLTP - so should I just go with it and not be so anal about the caching??

Thanks and Regards,
Brian

NT 4.0 SP6a Oracle 8.1.7.4
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Author: Richards, Brian
  INET: brichard_at_pd.state.gov

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