Re: Hardware HD choice... - Mailing list pgsql-performance

From Scott Marlowe
Subject Re: Hardware HD choice...
Date
Msg-id dcc563d10810231016x2b66b7b8i5f6e7d2fb0ea0b6f@mail.gmail.com
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In response to Re: Hardware HD choice...  ("Scott Marlowe" <scott.marlowe@gmail.com>)
Responses Re: Hardware HD choice...
List pgsql-performance
On Thu, Oct 23, 2008 at 10:38 AM, Scott Marlowe <scott.marlowe@gmail.com> wrote:
>>
>> Any other better option that I could ask for ?
>
> Yes, more drives.  4 drives in a RAID10 is a good start.  If you could
> get 8 or 12 in one that's even better.
>

Note that for transactional databases SAS drives are usually
noticeably better, but for reporting databases, SATA drives are
generally fine, with 70-80% the sustained transfer rate at less than
half the cost per megabyte.  I'd recommend 8 SATA drives over 4 SAS
drives for a reporting database.  You'll spend about the same on twice
the number of drives but you'll get much more storage, which is often
useful when you need to work with large datasets.

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