The through put also depends on what device are you backing up the data i.e to local disk , NAS or tape unit . If you sure the backup is running from SAN , then I guess the job is configured properly to Use SAN if San is not configured properly you need to use NDB

Hi there,

What configuration do you have on your SAN? What RAID level are you set at...

Is your BE server physical or virtual?

Are your ports on the switches configured to auto-negotiate the speed of the connection between FC HBA and FC port, or hard-coded? Hard-coding being better.

Also, unless you installed BE 2010 R2 recently, BE 2010 R3 is out,a nd you mmight want to look into upgrading to this to see what the difference is.

Unfortunately, to go back to using VCB you need to revert to BE 12.5, and I doubt tyou will be able to keep the data in your BEDB. THat said, but rolling back you lose support for applications like Exchange 2010.

Thanks!

Thanks for the prompt response. The backup destination is to dedepu folder with sas hdd raid5. however the result is the same when backing up to fibre channel lto5. My SAN configured with FC. hdd raiddp.

Ok as you are using a DeDUp target you shoudl upgrade to BackuP Exec 2010 R3 to gain advatbnated in operformance for VmWare backups becuase of stream handlers and teh latest VDDK version being present in this update.

Admitedly I would have expected that to affect performence of NBD and SAN however I still suggest you do update to see if there is a difference.

Thousand thanks, no offense but it was a painful experience for upgrading from RTM to R2 as my dedupe folder can't work at all after upgrade end up I have to delete and recreate.  Since the current setup (fresh install on a brand new machine) is running fine, for the upgrading this round I have to seriously planning my risk management.

My test of today as follow

1. I have create a LUN and presented it to media server, say D: I try to copy a 2GB zip file to and from my local drive. The speed is around 100MB/s.

2. I created a backup to disk folder at the D:. and backup the same file to the b2d. the speed is 3000MB/Min.

3. I backup the same file from the local drive to the dedupe folder, 1500MB/min.

4. backup the same file from D:\ to the dedupe folder, 1500MB/min.

5. backup VM guest to LTO5 1200MB/min.

6. Backup the same VM guest to dedupe folder, 400MB/Min.

7.Backup the same VM guest to d: b2d folder, 400MB/Min. !!!

I guess my SAN is heathy, does it worth to upgrade to R3? Please help.

thanks

R3 actually doesn't improve the proformance. After I clean up all the snapshot image from guest OS, the backup speed can reach up to 1.5GB per min. I think the is the root cause.

thanks a lot