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BE 2012 SP2 LTO 5 Speed Questions

Created: 03 Dec 2013 • Updated: 17 Dec 2013 | 2 comments
This issue has been solved. See solution.

Hello, 

I have had no formal training in Backup Exec products and most of my knowledge comes from experimentation and reading forums, so please forgive me for any glaring mistakes I may have made so far.

With that out of the way, I was wondering if anyone could give me some advice on avg. speeds I should be getting with LTO 5 tapes.  I have a Dell Poweredge R710 hooked up by miniSAS to a OverlandStorage Neo100s tape drive.  I use the Neo100s to back up 1 file/print server as well as an iSCSI disk from a NAS unit.  The speeds I get for a full and incremental backup avg out to be 1000MB/Min.  I have read other posts about fine tuning LTO performance, and I have tried changing my Block Size around and the high water count.  Neither of these have seemed to do much in terms of changing the speeds I'm getting.  I have tried doing backups for data located solely on media server, and data located on the iSCSI drive.  The speeds I get then are 2100~MB/Min and 500~MB/Min respectively.  I do incremental backups on weekedays and run a full backup on the weekend.  The incrementals finish fast enough (40-50GB in an hour or two), but the full takes almost a whole day to do 1 TB of data.  I also have made sure that the Symantec drivers are the drivers being used for my backup device.  I have also reinstalled BE 2012 once before.

Does anyone have any helpful advice as to what I can do to possibly bolster the speeds?

 

Thank you for time

Operating Systems:

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CraigV's picture

Hi,

 

You can check the links below and see if they help you further:

http://www.symantec.com/docs/TECH49521

http://tinyurl.com/p2qf9at

http://www.symantec.com/docs/HOWTO23086

The speeds are very dependant on the type and size of files being backed up. Databases would backup faster as they allow the drive to stream data more consistently, while smaller files cause a stop/start effect on the drive and it never really hits the fastest it can run at.

Thnaks!

Alternative ways to access Backup Exec Technical Support:

https://www-secure.symantec.com/connect/blogs/alte...

SOLUTION
sean.anderson's picture

Thanks, Craig.  I'll give those a read and see what I can do.