Re: Exchange Performance/Sizing Question

CPU, Memory, but primarily Storage. Your storage should provide enough disk
IO for the number of users you have.

You need to determine what is the volume of email traffic per user - number
of messages sent/received, et al - per day - which determines their usage
profile and the disk IOPS required per user.

Then you go about sizing storage so it provides adequate disk IOPS.

Optimizing Storage for Exchange Server 2003
http://www.microsoft.com/technet/prodtechnol/exchange/guides/StoragePerformance/fa839f7d-f876-42c4-a335-338a1eb04d89.mspx

Performance and Scalability Guide for Exchange Server 2003
http://www.microsoft.com/technet/prodtechnol/exchange/guides/E2k3Perf_ScalGuide/10be5826-45b2-48e7-8450-4ec8dd63beb0.mspx

Calculate your server size
http://www.microsoft.com/technet/prodtechnol/exchange/guides/E2k3Perf_ScalGuide/ccec1c70-a3df-404a-93e0-b74077e3d013.mspx

If starting afresh, there are also tools like Loadsim and JetStress that let
you validate your server performance and storage design and figure out what
kind of load it can take before you deploy, but that doesn't seem like an
option in your case since you're already in production.

--
Bharat Suneja
MVP - Exchange
www.zenprise.com
NEW blog location:
www.exchangepedia.com/blog
----------------------------------------------


"jwilmer" <jwilmer@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:6ABC45A9-1301-4C22-A129-3D1505036712@xxxxxxxxxxxxxxxx
We have about 150 new users coming into our Exchange org. The total email
size is about 800gig. From what i understand, the size of the store comes
from the number of emails not attachments etc.

These new users are very demanding and will really complain if there are
performance problems.

The IT Dir ordered a Dell 2860 dual proc / 4 gig mem. We mirror the
partitioned internal drives that have OS, page and Exch Binaries. The DB
and
Logs are on separate SAN drive(s).

I am concerned that this single server will not perform 100% and I will
have
complaints. Our normal setup limits the total DB sizes to about 300-400
gig
with about 200-250 users on a similar box. Our performance is good.

MY Question:
What are the key factors in determining performance and sizing of an Exch
2003 SP2 server. Store size, total # of emails on the server, total # of
users supported, processor, memory etc.

Thanks for your help!!


.

Relevant Pages

  • Re: RAM Speicherauslastung
    ... If a ProLiant server has 4 GB of memory installed, ... regions is automatically remapped to above the 4 GB boundary on HP ProLiant ... on the ProLiant BL20p G4 server blade using the Intel ... Any of the following ProLiant servers or StorageWorks Servers and Storage ...
    (microsoft.public.de.german.backoffice.smallbiz)
  • Re: Disk Array Usage
    ... > server, and the rest are web, file and app servers. ... I see an array as a massive storage ... > than a disk array, why not have an actual server with a ton of space? ... If you have a number of disks which can be attached to by several machines ...
    (comp.sys.sun.hardware)
  • Re: High memory usage (*HELP*)
    ... Low on virtual memory does not necessarily mean anything with regard to disk ... If your system uses all the available RAM, ... acceptable for a server to put all of its available RAM to use. ...
    (microsoft.public.windows.server.sbs)
  • Re: Performance
    ... The server is set up with Raid 0 for the system and Raid 0+1 for the D ... rest in the D: (make sure D: is another different physical hard disk). ... The physical memory has available 5029150and stays pretty constant. ...
    (microsoft.public.windows.server.general)
  • Re: Single RAID 5 for everything....
    ... mainly due to the lack of utilization of the CPU and memory. ... total disk queue...ours is constantly around 4-6 and my physicaldisk/avg disk ... on the exchange server failed on the reboot already. ... Exchange server, you should be installing so much memory that Exchange ...
    (microsoft.public.exchange.setup)