Slow Database Restore After Apply SQL Server 2008 R2 SP2


has else experienced this? full database restore used take 5 hours take 12 hours after apply sp2. restore production server test server run often. both server run widows 2008 r2, sql server 2008 r2 64-bit.

the final output message "restore database processed xxx pages in xxxxx seconds (xx mb/sec). ".  convert total xxxxx seconds still get same time before sp2 upgrade. real duration shows on status bar of management studio 12 hours. windows task manager show no network traffic during initial hours, heavy disk write going on.

so question sql server 2008 r2 sp2 change database restore? if not, else cause this?

thanks,

lijun zhang

i @ log file size after files restored, has go through crash recovery redo , undo operations take place, can post messages sql log when restore started until database accessible once files in place recovery pase initiated maintain consistency of things in flight @ time backup taken. 

here link detailing recovery after restore

http://msdn.microsoft.com/en-us/library/ms191455(v=sql.105).aspx


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