Hello,
I received this error on my SQL 2014 Azure VM this morning. During this issue no application servers could access SQL which was a problem.
SQL Server has encountered 1 occurrence(s) of I/O requests taking longer than 15 seconds to complete on file [######log.ldf] in database [##########] (6). The OS file handle is 0x0000000000000C5C. The offset of the latest long I/O is: 0x0000004637b000
These errors are appearing in the event logs at the same time:
Reset to device, \Device\RaidPort1, was issued.
I looked at this blog http://sqlserver-qa.net/2013/08/08/sql-server-has-encountered-1234-occurrences-of-io-requests-taking-longer-than-15-seconds-to-complete-on-file/ and looked at I/O queues but they were 0. There are no jobs running during the outages. CPU / Memory and disk counters are all showing OK also.
I have also looked at the various other posts about this error and none seem to apply.
If this was a physical box I guess I would be looking at the disks / hba etc but since this is Azure I am a bit lost. Any advice would be appreciated.
Many thanks.