ADSM-L

Re: Database mirroring, again

2006-02-08 08:11:08
Subject: Re: Database mirroring, again
From: Neil Schofield <neil.schofield AT YORKSHIREWATER.CO DOT UK>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Wed, 8 Feb 2006 13:09:53 +0000
Roger

I too have been following this with interest. Being paranoid, I mirror the
database twice - once in hardware and again in software, but I appreciate
this is a luxury not available to most.

I'm sorry but I fail to see the logic in not using battery-backed cache in
the RAID controller. If the cache is used for writes, then battery back-up
is an absolute must. Granted the uncommitted transactions can be rolled
back, but battery-backed write cache is the only way to guarantee
transactions that are committed actually hit the oxide.

Regards
Neil



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