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Re: For the ametures. (related to "Are we losing momentum?") - Mailing list pgsql-hackers

From Tom Lane
Subject Re: For the ametures. (related to "Are we losing momentum?")
Date
Msg-id 3843.1051030260@sss.pgh.pa.us
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In response to Re: For the ametures. (related to "Are we losing momentum?")  ("D'Arcy J.M. Cain" <darcy@druid.net>)
Responses Re: For the ametures. (related to "Are we losing momentum?")  ("D'Arcy J.M. Cain" <darcy@druid.net>)
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"D'Arcy J.M. Cain" <darcy@druid.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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