Re: Advice on RAID card - Mailing list pgsql-performance

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Subject Re: Advice on RAID card
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Msg-id op.sxn1sdofth1vuj@localhost
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In response to Re: Advice on RAID card  ("Joshua D. Drake" <jd@commandprompt.com>)
Responses Re: Advice on RAID card
List pgsql-performance

> The common explanation is that CPUs are so fast now that it doesn't make
> a difference.
>  From my experience software raid works very, very well. However I have
> never put
> software raid on anything that is very heavily loaded.

    Even for RAID5 ? it uses a bit more CPU for the parity calculations.
    An advantage of software raid, is that if the RAID card dies, you have to
buy the same one ; whether I think that you can transfer a bunch of
software RAID5 disks to another machine if the machine they're in dies...

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