Re: Huge performance problem on Exchange 2003
- From: "zenner" <zenner@xxxxxxxxxxx>
- Date: Fri, 15 Jul 2005 13:52:07 GMT
I re-read the OP...found you did include some specs as to users, system
conditions...pls. disregard related speculation.
"zenner" <zenner@xxxxxxxxxxx> wrote in message
news:V2PBe.2463$Rv7.2214@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> What are the machine H/W specs?
>
> If both systems run similar software and both development and production
> systems are generally error free (assumes you have reviewed OS and
> Exchange logs); them it is reasonable to suspect your "performance" issues
> may be a result of Hardware being inadequate for the level of service.
>
> Running SSL, HTTPS introduces additional CPU intensive computational
> stress on the system. You didn't detail just how you configured your FE/BE
> setup, the number of concurrent users or other activity indicators. So, on
> speculation, in absence of other indicators...look at configuration (where
> is SSL/HTTPS computation taking place, FE(?)) and how much horsepower do
> your servers have.
> "mustafa" <mustafa@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
> news:C489D01D-6DC0-4014-928F-C8A111B885D2@xxxxxxxxxxxxxxxx
>> Hi!
>> We try to find out nearly for two weeks the problem source why our
>> Exchange
>> 2003 has very big performance problems. We found out this problem if the
>> attachments to be downloaded by using RPC over HTTP (or RCP over HTTPS
>> from
>> outside) and OWA.
>> After many tests in different physical network points, we found out that
>> the
>> problem is an internal problem (in Exchange 2003 networking +
>> ActiveDirectory). But we don't yet know where the problem is in this
>> network.
>> We have following internal network structure:
>> - Exchange Front-End Server (FE01) as Exchange Proxy server.
>> - Exchange Back-End Server (BE01) as mailbox / public folder and offline
>> address book server.
>> - First Domain Controller (AD01) has all FSMO roles and first Global
>> Catalog
>> server.
>> - Second Domain Controller as second Global Catalog Server
>>
>> Internal we did not implement HTTPS connections. Als servers communicate
>> to
>> each other without IPSec also.
>> We have full duplex switches (100 MBit) and all network interfaces on the
>> servers are 1000MBit interfaces.
>> We have only 50 mailboxes and very low traffic in the exchange network.
>>
>> If the Outlook 2003 clients try to download any file (compressed or not)
>> it
>> takes these files to download very long. For example, the Outlook 2003
>> needs
>> for 12 MB file about 7 minutes( !!!) to download by using RPC over HTTP
>> and
>> about 80 seconds by using OWA!!!
>> The Outlook 2003 state window shows (during attachment download) the
>> following states:
>> First,
>> " ... synchroizing inbox folder,..." it takes about 30 seconds.
>> After that it shows for the last download time following state:
>> "offline address book connection will be established to Exchange
>> server..."
>>
>> We have completely disabled anti virus and anti spam software on server.
>> We
>> tested also without any antivirus software on clients. But the same bad
>> performance results!!!
>> Unfortunately we did not exactly localize the problem source. We need
>> help.
>>
>> Thanks in advance.
>> Cicek
>
>
.
- References:
- Huge performance problem on Exchange 2003
- From: mustafa
- Re: Huge performance problem on Exchange 2003
- From: zenner
- Huge performance problem on Exchange 2003
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