Skip to main content

Deduplication and replication to USB drive problem

Thread needs solution

Hi!

I am evaluating B&R Advanced 11.5 for PC. I am using AMS. I have setup a centralized managed vault with deduplication and I do full backups to that vault.

Now I need to additionally replicate the latest full backups to a USB disk attached to the AMS and have to perform periodic USB disk rotation / swapping. The problem is that there is no way to directly add my local USB drive for replication and I cannot even create an unmanaged centralized vault on that USB drive, probably because I already have a managed one on the AMS (needed for deduplication). Can I somehow have MANAGED and UNMANAGED vaults on one machine?

Another problem is the fact that replication from the deduplicated vault to another location (e.g. network drive) is EXTREMELY SLOW. It is even slower that creating another full backup from the client workstation. But this again does not work as I cannot use any USB drives on the AMS because I am using deduplication (see above). This is really frustrating!

Anguel

0 Users found this helpful

You can't set up a managed vault on a rotated USB drive, it's not supported, storage node doesn't expect suddenly disappearing managed vault. Unmanaged vault can be created only in places that are accessible to other machines in network - such as network shares or FTP, but not local disks of AMS machine. If it's a local disk you have to share it over network.

Fedor,

Thank you for the fast reply. Yes, now I am sharing the USB disk via network and I will try to perform disk rotation with this network shared folder (which is actually a USb disk). Are there any chances that this will work if I do full backups only? Thanks.

Anguel

Yes, for unmanaged vault storage node will recreate all necessary information if the target location is empty. Regarding replication speed - I can't suggest much here. It may be lower that expected if other operations are performed (indexing/compacting) but I'd contact support with this issue.

The problem seems to be that I am not able to assign the same drive letter to multiple drives. As soon as I assign e.g. U: to one USB drive and then to another USB drive then the first drive again becomes E: so I cannot use both as network shares.

The ABR looking for fixed disk or network one.
If you try to mount the usb as a fixed disk it will work, but very very very very SSLLOOWW !!!!

Looks like I need to write some scripts with "net share" commands to make sure that my USB drives are mounted and shared properly to be used by Acronis. Very annoying and definitely not what I expect from a program of this class. I expect to be able to easily do replication to USB drives attached to my Acronis Server and be able to rotate these USB drives. Even Windows backup can rotate drives. Everything else does not fulfill even the very basic requirements of good backup. And of course I expect to be able to use deduplication at the same time, at least on the non-USB drives.

Dear Anguel, you are wasting your time...
Even the Windows operating system, does not allow backups to an external drive. It's look for FIXED DISK ONLY.

P.S - If it will work for you, I would like to see the script.. :-)

I will give you some hints...

http://it-n-careerz.blogspot.co.il/2013/08/change-usb-to-hdd-make-remov…

and hare

http://reboot.pro/topic/10534-converting-usb-removable-to-fixed-disk-bc…

Hello Anguel,

We faced the same problems with usb drives. Our workaround was to assign fixed drive letters to the two disks and mount each one as a network drive. Then we created two identical backup jobs for the two drives so that either one of the jobs will run.

Of course this workaround is a bit nasty. You will receive error reports for the drive that is not attached and if you want to change your backup plan you have to do the work twice. Furthermore you cannot change the plan if a drive is not attached. But since writing any script seemed too much effort to me, this is the "solution" we work with.

I would really appreciate a proper solution from Acronis here.

Best regards

Hi all,

In my blog I have described the idea I had for USB drive rotation / swapping:

http://techie-blog.blogspot.de/2014/04/backup-to-usb-disks-do-it-yourse…

Unfortunately, Acronis turned out to be very unreliable as a whole so I abandoned it.

Anguel