Re: [ADMIN] H/W RAID 5 on slower disks versus no raid on faster HDDs

From: "Bjoern Metzdorf" <bm(at)turtle-entertainment(dot)de>
To: <pgsql-performance(at)postgresql(dot)org>
Subject: Re: [ADMIN] H/W RAID 5 on slower disks versus no raid on faster HDDs
Date: 2002-11-21 19:24:19
Message-ID: 008e01c29193$9795eb80$0564a8c0@toolteam.net
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> A mirrored 2x36 setup will probably yield a marginal hit on writes (vs a
> single disk) and an improvement on reads due to having two drives to read
> from and will (based on the Scientific Wild Ass Guess method and knowing

slightly offtopic:

Does anyone one if linux software raid 1 supports this method (reading from
both disks, thus doubling performance)?

Regards,
Bjoern

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