February 13, 2012 at 11:04 am
We have a SQL server which is a virtual server that hosts the VDI for our district.
VDI is a software that deploys and manages student virtual desk tops.
At weekends there is some scheudled recomposition of virtual destopts to fail.
I checked the log, there is a serverity 20 happens around the time.
and prior to that, there is an error message:
SQL Server has encountered 2 occurrence(s) of I/O requests taking longer than 15 seconds to complete on file [F:\MSSQL\Logs\Rapport4.ldf] in database [RapportDB] (7). The OS file handle is 0x0000000000000534. The offset of the latest long I/O is: 0x00000000068e00
What does this mean?
Thanks
February 13, 2012 at 11:46 am
It means that you have an I/O issue. This could be caused by a very small (or very large) growth setting on that particular log file and that it is growing frequently or that you have a performance issue on your storage. This could be anywhere from the local HBA to disk configuration and perf on the SAN (I'm guessing SAN from your question).
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