Hi All,
We have an environment where an instance has around 2.6 TB of data. Generally it takes around 14-15 hours for taking a complete backup of this data. But recently it started taking 2 days (48 hrs) around for the backup.
1. First thing i checked is the Disk Write Queue Length suspecting it may be a disk issue but the avg value varied around 0.156
2. The MaxDop setting is set to 1. So i checked if any single processor is heavily used from the Processor (% Processor Time) and saw that all the processors are not getting utilised more than 50 anytime and the overall CPU is also ok.
3. I checked to see if any network congestions are there, but the network output queue length is fine.Avg. below 6
So i am unable to figure out, why this is taking this much of time. I am thinking to run PSSDIAG or SQL Profiler to capture any blockings/deadlocks during that time. S
So please suggest what may be the issue and how to trouble shoot the issue.