I have a terminal server that momentarily locks up. While watching Performance monitoring i have noticed that the bog happens about the same time average Disk queue length goes to 100. I also see multiple Errors in the Event log stating the following.
This is a Supermicro AS1020 server Using RAID 1 on an Adaptec AIC-8130: (Marvell 88SX6041) 4-port Hercules-2, rev B2, SATA Controller. Unit is running but performance is severely impacted.
Event Type: Error
Event Source: aar81xx
Event Category: None
Event ID: 9
Date: 2/13/2010
Time: 2:43:48 PM
User: N/A
Computer: PPTSA
Description:
The device, \Device\Scsi\aar81xx1, did not respond within the timeout period.
For more information, see Help and Support Center at
http://go.microsoft.com/fwlink/events.asp.
Data:
0000: 00 00 10 00 01 00 68 00 ......h.
0008: 00 00 00 00 09 00 04 c0 .......À
0010: 01 01 00 50 00 00 00 00 ...P....
0018: 00 00 00 00 00 00 00 00 ........
0020: 00 00 00 00 00 00 00 00 ........
0028: 00 00 00 00 00 00 00 00 ........
0030: 00 00 00 00 07 00 00 00 ........
http://support.microsoft.com/kb/154690