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SBS 2011 slows to a crawl and requires reboot

I have had a number of calls from clients with SBS 2011 experiencing speed problems.  Common symptoms are;

-Access to network resources (i.e. shares, printers) becomes very slow
-Currently logged on users can see and use resources but other users are refused logon.
-Can not access server remotely using RDP on any other 3rd party remote software.
-Blank screen on server desktop with mouse pointer
-Can usually perform remote shutdown from LAN.
-Reboot always fixes the problem for several weeks.

The servers are mixed hardware but all HP with HP ROK editions of SBS 2011. All installations are physical with no virtualisation involved.  All exceed the minimum required spec, usually 16GB or higher RAM, at least 2 physical volumes in RAID 1, Xeon processor, mix of SATA/SAS drives.  All firmware updates installed and every MS service pack/critical update installed.

Performance is always good in every site after reboot and its not like it steadily deteriorates over time but just seems to hit a wall after a random period.

Is there an update/fix that I have missed that may be common across these machines causing these problems?
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tech53
Asked:
tech53
1 Solution
 
donnkCommented:
you have multiple SBS boxes with the same fault ?

Certainly not normal, first thing I would be looking at is hardware.

Post of a copy of the system  and App logs for the 'go slow' times.
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Joseph NyaemaIT ConsultantCommented:
Error messages and warning from event viewer application and system log aound the time users experience above would give us a clue as to what the issue is.
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adriaanvwCommented:
We've experienced similar issues, and eventually tracked the cause to semi-corrupted Outlook archive PST files. Whenever an effected user fired up Outlook and then accessed their archive folder, the Windows Search service started using all available CPU headroom and slowed everything to a crawl.

Fixing the issue was rather simple - we used the Microsoft Outlook Inbox Repair tool on each PST archive file, and the issue was resolved.
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VirastaRCommented:
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donnkCommented:
Going to be hardware I would expect. We need the a copy of the event logs just prior to you restarting it to see whats going on.

Have you checked out running processes to see whats hogging resources ?
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tech53Author Commented:
I  will grab some logs and get them up.  I was initially ruling out hardware because there is such a wide range of machines that this is happening on eg ML 350g7, ML 310g8, ML 330 etc the only common factors being that its all HP gear

When the  problem hits I cannot get logged on to the desktop of the SBS so I cant see what processes are running at the time.
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