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Backup Exec Backup speed

Created: 30 Jan 2013 • Updated: 07 Feb 2013 | 2 comments
Alex Zn's picture
This issue has been solved. See solution.


When i perform backup to deduplication folder i see speed near 50 MB/s. No matter what data I ‘am backing up, cause speed approximately the same. I have tested source storage and saw that if Outstanding I/O set to one (one stream), than i see the same speed, but if i increase this parameter to 5 i see speed close to 170-200 MB/s. Seems Backup exec works using one stream and no matter how many jobs goes through it. May be i need to change some registry key to allow multiple streaming? Where and which?

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CraigV's picture

Which version of BE 2010 are you using? If not on 2010 R3 I'd suggest planning an upgrade to R3, and update to SP2 and any additional patches. Push-install to your remote servers and then check...

The ISO is on the link below:

You can use your same licenses!

Alternative ways to access Backup Exec Technical Support:

Alex Zn's picture

I have received answer for Symantec. "Backup Exec works in one stream and so divide this stream on a number of simultaneous jobs".

So backup speed cannot be more than ability of storage subsystem to work in one stream (IOmetr Outstanding I/O). The speed may be slow down by source storage subsystem (from which BE reads data) or destination (where BE writes data or performs verify).

I am very disappointed of this behavior.