Re: Mirroring, Striping, Etc.

Christian Schmit ( )
Tue, 03 Feb 1998 13:14:00 +0100


Writing is slower when mirroring as the machine
has to write the data to 2 HD's. Reading performance
should improve if you have many simultaneous requests.

We also have our mail server (postoffice 3.12 on NT4 SP3)
running in mirrored setup on a Pentium 200 with 64MB RAM and
AHA2949AU with 2 4.3GB disks. We did not observe any noticeable
slowdown when we introduced mirroring.


At 02:27 PM 2/2/98 -0800, you wrote:
>Can someone offer some information regarding performance
>improvements/degradation caused by drive mirroring and striping on NT 4?
>We recently added a second drive to our mail server and set it up as a
>mirror drive. Since then, it seems to be slower in responding when sending
>mail. It may just be perception, since I am paying more attention to the
>machine now.
>We are running a PP150 w/128 MB Ram and 2- 2.1 GB SCSI on an Adaptec 2940.
>Thank you,
>Greg White
>Direct NET Communications
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