Re: more 10K disks or less 15K disks - Mailing list pgsql-admin

From Scott Marlowe
Subject Re: more 10K disks or less 15K disks
Date
Msg-id m2kdcc563d11004282151qb7db252g557ec4ec5a6bc385@mail.gmail.com
Whole thread Raw
In response to Re: more 10K disks or less 15K disks  (Anj Adu <fotographs@gmail.com>)
List pgsql-admin
On Wed, Apr 28, 2010 at 10:45 PM, Anj Adu <fotographs@gmail.com> wrote:
> Thanks Greg
>
> We do not archive the WALs. We use application-level replication to
> achieve redundancy. WAL archiving was difficult to support with the
> earlier hardware we had ( 6x300G 10K disks Dell 2850) given the
> volumes we were dealing with. The RAID card should be from the same
> manufacturer (LSI in Dell's case).

I don't think Greg was talking of WAL archiving, but more of where are
the WAL files and how much IO throughput the WAL needs compared to the
regular old /data/base store.

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