[cisco-voip] Unity and Exchange
Rasim Duric
rduric at uoguelph.ca
Tue Aug 26 16:59:07 EDT 2008
Hi Steven,
Not the MS link (Ex2k)specification per say but these links might help:
http://searchexchange.techtarget.com/news/article/0,289142,sid43_gci1075245,00.html#exchange_server_processors
http://72.14.205.104/search?q=cache:rabr8p6Pd1kJ:www.yarnold.com/resume/images/data/Sample%2520Documentation/P2K-681%2520Design%2520-%2520Exchange%25202000%2520Server%2520v1.0.doc+microsoft+exchange+2000+maximum+number+of+mailboxes
<http://72.14.205.104/search?q=cache:rabr8p6Pd1kJ:www.yarnold.com/resume/images/data/Sample%2520Documentation/P2K-681%2520Design%2520-%2520Exchange%25202000%2520Server%2520v1.0.doc+microsoft+exchange+2000+maximum+number+of+mailboxes&hl=en&ct=clnk&cd=63&gl=ca>
&hl=en&ct=clnk&cd=63&gl=ca
Rasim Duric
Network Analyst (CCS)
University of Guelph
Guelph, N1G 2W1, ON
519-824-4120x53146
rduric at uoguelph.ca
From: STEVEN CASPER [mailto:SCASPER at mtb.com]
Sent: August-26-08 1:50 PM
To: cisco-voip at puck.nether.net; Rasim Duric; 'Jason Aarons (US)'
Subject: RE: [cisco-voip] Unity and Exchange
Do you have a link you could provide that has the Microsoft (Ex2K)
specifications?
>>> "Rasim Duric" <rduric at uoguelph.ca> 8/26/2008 12:04 PM >>>
My Unity server is a Platform Overlay 4 (MCS7855I) server and as I remember
it could support up to 7,500 offbox vm subscribers with 72 ports. Our offbox
message stores (exchange 2000 servers) are MCS7845H (2 CPU 2.4 GHZ, 4GB,
4x72GB disks) and I have 2 of these (i.e. around 4,000 subscribers on one
Unity server and 2 Exchange servers).
Per Microsoft (Ex2K) specification you could have around 1,500 email users
on one exchange server. Since Voicemail is not as heavy as an email system
it is safe to assume this kind of server could support around 2,000 vm
subscribers.
That is at least how we designed our VM infrastructure a few years ago and
it has been working OK.
Rasim Duric
Network Analyst (CCS)
University of Guelph
Guelph, N1G 2W1, ON
519-824-4120x53146
rduric at uoguelph.ca
From: Jason Aarons (US) [mailto:jason.aarons at us.didata.com]
Sent: August-26-08 11:24 AM
To: Rasim Duric; STEVEN CASPER; cisco-voip at puck.nether.net
Subject: RE: [cisco-voip] Unity and Exchange
For that model server MCS-7835-H1 the spec sheet list 2000 mailboxes with 42
ports. Not sure if cisco licensing knows the server spec and will issue
licenses. I seem to recall cisco doesn’t have a way to verify hardware with
licenses. Eg you can put 120 ports on a 7825 overlay 1 and they don’t know
you got a 7825 when you should have a overlay 3, etc.
Recall the platform overlay 1, 2, 3 setups for Unity in the installation
guide.
From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Rasim Duric
Sent: Tuesday, August 26, 2008 9:42 AM
To: 'STEVEN CASPER'; cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] Unity and Exchange
Our Exchange offbox servers are the Cisco MCS7845H-EVV1 (HP DL380-G3 )
machines and we also have about 2000 voice mail users per each server. We
have 2 standalone DC/GC servers though. Since cpu utilization is low on our
G3 servers I would say a DL380-G4 should support up to 3000 voice mail only
subscribers without issues.
We also keep deleted messages for 5 days and do the message store
defragmentation once every year which helps in performance and increase a
free disk space.
Rasim Duric
Network Analyst (CCS)
University of Guelph
Guelph, N1G 2W1, ON
519-824-4120x53146
rduric at uoguelph.ca
From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of STEVEN CASPER
Sent: August-26-08 9:01 AM
To: cisco-voip at puck.nether.net
Subject: [cisco-voip] Unity and Exchange
Hello All,
Running Unity 4.05 with Failover, Exchange 2000 offbox, Voice Mail only
config. My Exchange boxes are DL380 G4's with dual cpu with a lot of disk
space left. Wondering how many exchange mailboxes these servers will
support before I need to add new Exchange servers. I currently have about
2000 users on each server and my exchange data base runs about 8 - 9 gb on
each server. These servers also act as the DC/GC's for the Unity standalone
AD domain. I am having no issues but need to plan for the future. I expect
to be upgrading to Unity 7 next year.
Thanks!
Steve
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