Recently I did quite a bit of benchmarking on restores with ORACLE RMAN multiplexing.
We currently do 4 channels to 1 tape. Our test backup was taking 39 mins, with a full restore time of 2 hours. And we tested other channels, and it seems that the restore time is # of channels times the backup time. So my restores are 4 times a long as the backup. Well, we also tested sending each channel to different tape drives. Well the same backup was restored in 38 mins! So, I am in the process of modifying my VTL to have enough tape drives so that we can un multiplex all of our backups. Also I will add vaulting a multiplex image takes longer than one that is not multiplex. And yes, my vault profile is set to keep multiplexing. Kevin -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Justin Piszcz Sent: Friday, July 27, 2007 6:50 AM To: [email protected] Subject: [Veritas-bu] Has anyone done benchmarking of any sort with.. The delay on Multiplexed restores? Justin. _______________________________________________ Veritas-bu maillist - [email protected] http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu _______________________________________________ Veritas-bu maillist - [email protected] http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
