https://community.hpe.com/t5/storevirtual-storage/sql-performance/m-p/5380779#M4026 <P>I have these messages in event viewer on SQL 2005 SP3</P><P>"SQL Server has encountered 3 occurrence(s) of I/O requests taking longer than 15 seconds to complete on file"</P><P>Usually during this type we have some queries ruinning on the SQL server....</P><P>&nbsp;</P><P>Has anyone seen these messages before?</P> Thu, 03 Nov 2011 14:19:25 GMT bublik 2011-11-03T14:19:25Z https://community.hpe.com/t5/storevirtual-storage/sql-performance/m-p/5380779#M4026 <P>I have these messages in event viewer on SQL 2005 SP3</P><P>"SQL Server has encountered 3 occurrence(s) of I/O requests taking longer than 15 seconds to complete on file"</P><P>Usually during this type we have some queries ruinning on the SQL server....</P><P>&nbsp;</P><P>Has anyone seen these messages before?</P> Thu, 03 Nov 2011 14:19:25 GMT https://community.hpe.com/t5/storevirtual-storage/sql-performance/m-p/5380779#M4026 bublik 2011-11-03T14:19:25Z https://community.hpe.com/t5/storevirtual-storage/sql-performance/m-p/5398895#M4160 <P>Does the SQL server have its own volume for data files, and another one for logs? Are you using the mpio plugin?</P> Wed, 23 Nov 2011 17:33:33 GMT https://community.hpe.com/t5/storevirtual-storage/sql-performance/m-p/5398895#M4160 bryan_hadzik 2011-11-23T17:33:33Z https://community.hpe.com/t5/storevirtual-storage/sql-performance/m-p/5398905#M4162 <P>found the bottleneck on the network. Throughput of 120 MB per second on 1 GB network.</P> Wed, 23 Nov 2011 17:49:49 GMT https://community.hpe.com/t5/storevirtual-storage/sql-performance/m-p/5398905#M4162 bublik 2011-11-23T17:49:49Z