I have an instance that is 1 of a 6 node cluster that crashed today. It's SQL Server 2005 4035 (SP3) Enterprise and the last error messages it gave before crashing are as follows:
BobMgr::GetBuf: Sort Big Output Buffer write not complete after 60 seconds.
SQL Server has encountered 20 occurrence(s) of I/O requests taking longer than 15 seconds to complete on file [Z:\MSSQL\Temp\Templog.ldf] in database [tempdb] (2). The OS file handle is 0x0000000000000C64. The offset of the latest long I/O is: 0x000000f6c20c00
SQL Server has encountered 20814 occurrence(s) of I/O requests taking longer than 15 seconds to complete on file [Z:\MSSQL\Temp\TempDB_Data.mdf] in database [tempdb] (2). The OS file handle is 0x0000000000000CAC. The offset of the latest long I/O is: 0x000002fe040000
tempdb has one data file and one log file and this z drive is a mount point on a LUN in our SAN.
Thanks