Re: questions about design for 100 users
- From: "Bharat Suneja [MVP]" <bharatsuneja@xxxxxxxxxxx>
- Date: Tue, 19 Sep 2006 12:40:25 -0700
Responses inline.
--
Bharat Suneja
MVP - Exchange
www.zenprise.com
NEW blog location:
www.exchangepedia.com/blog
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"bill Tylta" <ryanmc@xxxxxxxxx> wrote in message
news:%23q90Euq2GHA.4312@xxxxxxxxxxxxxxxxxxxxxxx
I'm designing an exchange implementation for 100 mailboxes, butOf course! Else risk having 100 users-200 users without authentication and
I'm hoping this will scale to at least 200 in the next couple of years.
Most
users will use cached exchange mode with outlook 2003. I also have several
users with phones, I'm trying to get us to use windows mobile 5 devices,
but we may need another server with BES.
What I'm think now is one domain controller and a server running exchange
enterprise server. Should I push for a second domain controller for
redundancy?
email for as long as your DC is down - single point of failure. Adding a DC
would be cheaper than potential downtime, imo, and you could also consider
running the second DC in a virtual machine (Virtual Server 2005 is
free... ).
The exchange server will have dual xeon processors, 4gigs of ram and the
system files/log files/database files will
be split up onto disks in raid1/raid1/raid5 or raid10 configurations. That
would be a total of 7 or 8 disks. Mailboxes will be about 250 megs. I
believe four 75 gig hard drives in raid 10 could handle 200 mailboxes. Any
recomendations, if I wanted this to scale to something like 300 mailboxes?
- What type of drives? SCSI, SATA, drive speed. When planning Storage you're
trying to figure out :
For performance:
a) What type of users you have, and disk IOPS (Input/Output Operations Per
Second) they consume on your Store volume
b) IOPS provided by your storage configuration - which would be different
for SCSI, SATA, FC disks
For sizing:
c) Mailbox quotas
d) Deleted Item retention
Optimizing Storage for Exchange Server 2003
http://www.microsoft.com/technet/prodtechnol/exchange/guides/StoragePerformance/43a270e5-3a0b-4fe5-8c74-505d5c4a293b.mspx?mfr=true
We are looking at a VPN solution. I'm not sure OWA will be available from
the internet and no rpc over http. Would a front end server thus not
really be needed?
Yes, doesn't look like you really need a FE in your case.
Best is a subjective term - what's the criteria? Cost? Speed of backup &
Would tape be the best back up solution for us?
recovery? Life of backup media?
Any good recomendations for antivirus software and is that going to bog
down the exchange server too much? Maybe that could go on a frontend
server?
Trend Micro Scanmail, Sybari Antigen (now Microsoft ForeFront)
.
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- From: bill Tylta
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