Disk Partitioning on exch 2003

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Brett W - 17 May 2005 09:42 GMT

Hi All,

We are currently implementing a new exch 2003
implementation. I have read that certain partioning will
give better performance of the exch server.

We have a userbase of around 1200. The server has 6 73G
disks with a single channel raid controller. 3G of Ram

Im thinking that it would be best to make two disks raid 1
for the OS and exch installation. Then making the other 4
raid 5 however partitioned into two with the databases on
one and the log files on the other.

Does anyone have any suggestions or comments on what would
be the best configuration for partitioning.

Thanks

Brett

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Al Mulnick - 20 May 2005 23:02 GMT

The only suggestion that comes to mind with those limitations is that you
may want to consider changing the limitations of the disk. Putting the log
files on the same drive partition is not a best practice after years of
learning the hard way by many people. You really should consider getting
some other disks to put the log files.
If that's not possible, then putting the log files on the same drive as the
OS would likely yield better performance than putting them on a RAID 5
partition. If that's not a concern either, than I can't offer any other
suggestions :)

Al

> Hi All,
>
[quoted text clipped - 16 lines]
>
> Brett

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Asher_N - 19 Jul 2005 17:23 GMT

> The only suggestion that comes to mind with those limitations is that
> you may want to consider changing the limitations of the disk.
[quoted text clipped - 5 lines]
> RAID 5 partition. If that's not a concern either, than I can't offer
> any other suggestions :)

Keep in mind that most people will create a RAID1 and RAID5 array on the
same RAID controller. That does nothing for performance. I would make a
single array using all 6 drives, 3 logical partitions, the first one
around 20-30GB for the OS, a 20-30 GB for the logs and the rest for
data. If you really are that concerned about performance with the logs,
then I'd go with 2 partitions on my RAID5 array, and put a mirrored pair
of 35GB drives on a separate controler to house my logs.

> Al
>> Hi All,
[quoted text clipped - 17 lines]
>>
>> Brett

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