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MadCow
Honorable But Hopeless Addict
Canada
1484 Posts
Status: offline |
 Posted - 11/06/2008 : 10:22:53 AM
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Lots of Outlook Users in remote sites .... saying they are getting Requesting Data Dialog box. I ran ExBPA and ExTSA on my exchange servers and all is cool except for few little things.
Some of these users have DCs in their site but most of these users have no DC and they are connected through FW to our head office ....on high speed links. Mostly these users Outlook is offline so they have to do a manual send and receive to download messages.
Firewall guys have been upgrading to new FW too.
Hope I did not just answer my own question.
Advise Please.
Thanks,
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Sunny
__________________________________________________________________________
"Everyone is susceptible to the notion that when you begin to do well, you begin to see no boundary lines and forget the rules apply" - Eliot Spitzer
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wkasdo
Moderator
Netherlands
6140 Posts
Status: offline |
Posted - 11/06/2008 : 2:14:33 PM
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| Could be Exchange itself that is slow, although central users should also have the problem in that case. Did you check the disk counters of the stores? |
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Jazzy
Major Contributor
Netherlands
873 Posts
Status: offline |
Posted - 11/06/2008 : 3:12:04 PM
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| For the users without a DC in their site I would advice to use Outlook in Cache mode. |
Jetze Mellema
MVP Exchange, MCITP: Exchange Server 2010, MCTS: Forefront
My blog: http://jetzemellema.blogspot.com (Dutch) |
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MadCow
Honorable But Hopeless Addict
Canada
1484 Posts
Status: offline |
Posted - 11/06/2008 : 5:48:36 PM
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Thank you for your response.
The head office users were not having this issue but most the remote users with and without DCs were seeing this dialog box and from some of those sites we could not ping the active exchnage node either by name or IP.
So we failed over to the other node and thats where things got worst ...the fail over was fine for 10 minutes and then the Exchange HTTP Virtual Server Instance broke and it bounced to other node and then back and forth.
Then I called Microsoft and they notice the IsAlive HTTP Error with event ID 1005 and they applied a hotfix for this issue and then they further found out that the Symantec Mail Security Cluster Resource was also causing interference .....so called Symantec to look into that .... |
Sunny
__________________________________________________________________________
"Everyone is susceptible to the notion that when you begin to do well, you begin to see no boundary lines and forget the rules apply" - Eliot Spitzer
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MadCow
Honorable But Hopeless Addict
Canada
1484 Posts
Status: offline |
Posted - 11/12/2008 : 2:00:22 PM
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Today I am getting the Requesting Data Box again for our OL2002 users.
I ran the ExTroubleshooting assistance and it tells me that my Disk is a bottle neck. Its a SAN drive all the Exchange DB and Trans logs sit on it. I do not have any more drive space to relocate the logs to it.
The tool shows me the following....
The ratio of Reads I/Os to Writes I/Os on drive R: was 1.67. Generally, this ratio should be less than 0.10; a higher ratio indicates that this disk is used for something other than writing to the transaction log files. For best performance, the log drive should be dedicated for transaction log files
Transaction Log Read latency is high..
Transaction log disk: The average value for '\LogicalDisk(R:)\Avg. Disk sec/Read' should be less than 0.005 (5 ms). The measured value is 0.006 (6 ms).
Also screams about page file location ... it is on C:
Page file drive: The average value for '\LogicalDisk(C:)\Avg. Disk sec/Write' should be less than 0.01 (10 ms). The measured value is 0.01 (10 ms).
Advise Please.
Thank you |
Sunny
__________________________________________________________________________
"Everyone is susceptible to the notion that when you begin to do well, you begin to see no boundary lines and forget the rules apply" - Eliot Spitzer
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Edited by - MadCow on 11/12/2008 2:03:33 PM |
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wkasdo
Moderator
Netherlands
6140 Posts
Status: offline |
Posted - 11/12/2008 : 4:11:08 PM
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Latency values seem OK. Not great, but OK.
> The ratio of Reads I/Os to Writes I/Os on drive R: was 1.67.
Good point. Is that because you have the SG and its logs on the same drive? Not a great idea, as I'm sure you know.
Did you look at the counter \MSExchangeIS\RPC Averaged Latency already? It is a measure for the RPC response that users see. It should be below 50 ms on average. Try correlating it with the disk counters.
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MadCow
Honorable But Hopeless Addict
Canada
1484 Posts
Status: offline |
Posted - 11/13/2008 : 07:30:36 AM
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Thanks for your response.
Yes, unluckily we have Logs and SG on the same Drive: R.
When we planned this installation I brought this into our Managers attention but he said I have no budget plus not everybody does that. He understands that its a best practise to have them on seperate drive.
I will check out the \MSExchangeIS\RPC Averaged Latency.
I also turned off symantec mail security for now.
It gets better and better ....I looked windows updates and it tells me that I have 2 years old driver for our QLogic Fibre Channel Adapter and thats the storage driver. Manager is bit shaky on installing this driver. |
Sunny
__________________________________________________________________________
"Everyone is susceptible to the notion that when you begin to do well, you begin to see no boundary lines and forget the rules apply" - Eliot Spitzer
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Edited by - MadCow on 11/13/2008 07:56:18 AM |
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MadCow
Honorable But Hopeless Addict
Canada
1484 Posts
Status: offline |
Posted - 11/13/2008 : 09:09:03 AM
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ok I checked the RPC Average Latency ...it is fine.
But ...
RPC Operations/Sec are through the roof and so is RPC Packets/Sec.
Its appears as if some Outlook Clients may be causing this issue.
We have Blackerry Users whose BB sync with their MBX but through Wireless. Recently we have added BB Software Desktop Clients for few users ..hmmm.
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Sunny
__________________________________________________________________________
"Everyone is susceptible to the notion that when you begin to do well, you begin to see no boundary lines and forget the rules apply" - Eliot Spitzer
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Topic |
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Outlook Requesting Data
