An entry of "I/O stalls requests taking longer than 15 seconds to complete" has been found in the SQL Server error log.
|AVG I/O Stall (ms)||Meaning|
|10 - 20ms||Acceptable|
|20 - 50ms||Slow, requires attention|
|>50ms||Serious I/O bottleneck|
Identify and resolve the cause of the I/O bottleneck.
Investigating I/O bottlenecks | MSSQLTips.com
Troubleshooting Performance Problems in SQL Server 2005 | Microsoft Technet
Troublehooting SQL Server I/O requests taking longer than 15 seconds | Microsoft Developer
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