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Arcserve host-based VMbackup too slow with NBDSSL

Posted on 2012-09-06
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We have VMWare ESXi v5.x and are testing Arcserve host-based backup using D2D.  It works, but the network backups and restores use NBDSSL and are too slow to be useful.  2 hours to backup a single VM (80GB of hard drives) and 3-4 hours to restore it.

Will changing from NDBSSL to NBD help this?  I ran change_to_http.bat on both the D2D install and the host-based vm backup install.  Both worked, but the restore still used NBDSSL.  How do you force it to use NBD.

How do you speed of the processes to make the software usable?
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Question by:dakota5
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prashant9885 earned 2000 total points
ID: 38375918
I would suggest you use SAN transport mode for VM backup.


However,if you want to change the transport mode. Follow below steps.


1. Log in to the CA ARCserve D2D backup proxy system for the virtual machines.
Open Windows Registry Editor and browse to the following key:

[HKEY_LOCAL_MACHINE\SOFTWARE\CA\CA ARCSERVE D2D\AFBackupDll\{VM-InstanceUUID}].

2. Right-click VM-InstanceUUID and select New and click String Value on the pop-up menu.
Name the new string value as follows:
EnforceTransport
3. Right-click EnforceTransport and click Modify on the pop-up menu to open the Edit String dialog.
4. In the Value Data field, specify the transport mode that you want to use during the backup job. Specify one of the following values:

nbd


Source :

https://support.ca.com/cadocs/0/CA%20ARCserve%20Central%20Applications%20Enterprise%20Support%2016%200-ENU/Bookshelf_Files/PDF/AU_HOSBAS_W_ENU.pdf
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Author Closing Comment

by:dakota5
ID: 38376148
Excellent answer.  Encryption of NBDSSL was slowing things down.  Don't have a SAN, so will use non encrypted NBD.
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