Re: For the ametures. (related to "Are we losing momentum?")

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: "D'Arcy J(dot)M(dot) Cain" <darcy(at)druid(dot)net>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: For the ametures. (related to "Are we losing momentum?")
Date: 2003-04-22 16:51:00
Message-ID: 3843.1051030260@sss.pgh.pa.us
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"D'Arcy J.M. Cain" <darcy(at)druid(dot)net> writes:
> Hmm. Is this safe? Let's assume for argument's sake that the RAID is 100%
> reliable and that the local spindle will eventually fail. Can I lose data by
> leaving WAL on the local spindle? Or are you suggesting two full RAID
> systems?

A two-disk mirror for the WAL would be good, yes; it needs redundancy
just as much as the main storage. But the discussion was about
performance not reliability; the OP hadn't mentioned that he wanted any
redundant storage.

regards, tom lane

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