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 Restoring a Compressed DB Backup is taking long
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Yak Posting Veteran

94 Posts

Posted - 01/29/2013 :  22:50:04  Show Profile  Reply with Quote

I took a backup of a database with "Compressed" selected in "set backup compression".

When I restore it is taking 6 hours for a backup that usually take an hour without compression. Should I be worried?

I used the following command


restore database DBBlah
from disk='D:\Shiyamtemp\DBBlah_Jan29.bak' 
WITH MOVE 'DBBlah_Data' TO 'D:\SQLDATA\DBBlah_Jan29.mdf',
MOVE 'DBBlah_Log' TO 'D:\SQLDATA\DBBlah_Jan29.ldf',
replace, recovery, stats=5, maxtransfersize=1048576

This is where it is stuck for atleast 4 hours.

75 percent processed.
80 percent processed.
85 percent processed.
90 percent processed.
95 percent processed.
100 percent processed.
Processed 6162912 pages for database 'DBBlah', file 'DBBlah_Data' on file 1.
Processed 1 pages for database 'DBBlah', file 'Blazon_Log' on file 1.

Tried in 2 different database servers, same deal. Please let me know if this could be an issue?

- Shiyam

Posting Yak Master

212 Posts

Posted - 01/29/2013 :  23:10:25  Show Profile  Visit prett's Homepage  Reply with Quote
Please check this post:

Hope it will help you to understand your issue!!
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Almighty SQL Goddess

38200 Posts

Posted - 01/29/2013 :  23:52:38  Show Profile  Visit tkizer's Homepage  Reply with Quote
Do you have access to the source database of this backup? If so, check the number of VLFs.

Tara Kizer
Microsoft MVP for Windows Server System - SQL Server

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Yak Posting Veteran

94 Posts

Posted - 01/30/2013 :  08:09:00  Show Profile  Reply with Quote
Thank you so much, both of you.
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