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Re: [ADMIN] H/W RAID 5 on slower disks versus no raid on faster HDDs - Mailing list pgsql-performance

From Bjoern Metzdorf
Subject Re: [ADMIN] H/W RAID 5 on slower disks versus no raid on faster HDDs
Date
Msg-id 008e01c29193$9795eb80$0564a8c0@toolteam.net
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In response to H/W RAID 5 on slower disks versus no raid on faster HDDs  ("Rajesh Kumar Mallah." <mallah@trade-india.com>)
Responses Re: [ADMIN] H/W RAID 5 on slower disks versus no raid on faster HDDs  (eric soroos <eric-psql@soroos.net>)
Re: [ADMIN] H/W RAID 5 on slower disks versus no raid on  (Mike Nielsen <miken@bigpond.net.au>)
Re: [ADMIN] H/W RAID 5 on slower disks versus no raid on  ("scott.marlowe" <scott.marlowe@ihs.com>)
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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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