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Restoring a 2.8 TB backup on the same SQL Server 2014 SP1 takes long and it has been almost 6 hours but the progress is stuck at 0 percent. Also, its state is showing as Suspended and there is one wait type, async_io_wait.

  • We need few clarifications related to your post, 1. Are you restoring from shared source or local source? Is target drive local or SAN? – Rajesh Ranjan Sep 5 '16 at 6:51
  • Hi Rajesh thank you for your reply and I am restoring from local drive – nasar Sep 5 '16 at 8:12
  • Please share few information. 1. Execute DBCC LOGINFO and see how many VLF (Virtual Log Files) there are? 2. What's size of T-Log file? 3. What's Checkpoint interval? 4. What's SQL Server Service LogOn account? 5. What's disk RPM? 6. Are you restoring from same disk as target?? – Rajesh Ranjan Sep 5 '16 at 10:19
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Just check... Whether you have instant file initialization on (Find the user/service on which SQL Server runs and find whether that user/service have rights to perform volume maintenance tasks.)

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