I am seeing below error messages when we have moved/migrated databases to new server/instances from SQL2K12 stanadlone to cluster
last target outstanding: 20800, avgWriteLatency 30 average throughput: 69.12 MB/sec, I/O saturation: 243550, context switches 398948 FlushCache: cleaned up 579723 bufs with 388331 writes in 65526 ms (avoided 125170 new dirty bufs) for db 19:0
I have no clue if this points any issue with stoage.
Now the concern is, before we did migration i had similar error messages on the this instance but they were like coming after half hour 2 hours or may 15mins. no fixed pattern.
But after migration above error message keeps coming every 2 mins from the day we migrated. That is what sounds alarming.
On the old server from where we migrated, yes we had similar messages but again there was no fixed patterm, sometimes 2 mins, an hour may be after 4 hours, but not continuous like on new server.
But still i am confused how to deal with this and what exactly these messages point dba's to look for?