Re: SAN vs Internal Disks - Mailing list pgsql-performance

From Joshua D. Drake
Subject Re: SAN vs Internal Disks
Date
Msg-id 46E196C6.9090301@commandprompt.com
Whole thread Raw
In response to Re: SAN vs Internal Disks  (Alan Hodgson <ahodgson@simkin.ca>)
List pgsql-performance
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Alan Hodgson wrote:
> On Friday 07 September 2007 10:56, "Bryan Murphy"
> <bryan.murphy@gmail.com> wrote:
>> Our database server connects to the san via iSCSI over Gig/E using
>> jumbo frames.  File system is XFS (noatime).
>>
>> Throughput, however, kinda sucks.  I just can't get the kind of
>> throughput to it I was hoping to get.
>
> A single Gig/E couldn't even theoretically do better than 125MB/sec, so
> yeah I would expect throughput sucks pretty bad.

We have a customer that has a iSCSI SAN that can bond multiple Gig/E
connections that provides them with reasonable performance. You should
see if yours allows it.

Joshua D. Drake


>


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