CA 12.5 Deduplication Device and XOsoft 12.5 Replication


In this blog I go over CA Arcserve 12.5 and XOsoft to show how they both can be used to give added data recovery options and get rid of tape in remote locations. Now there are many ways you could accomplish the same thing and this is just one. So, I was working with Vmware Data Recovery and loved the fact that you could use a file share to dump your deduped backup data which could be replicated offsite for added recovery capabilities. Then I wondered if this would be possible with Arcserve and it’s deduplication devices data folders and files. After some testing this proved to be very possible, functional, and reliable if done correctly.

My focus was around not needing to have tape media at some of our smaller remote locations but give the local administrators that same backup and restore functionality their used to having with CA Arcserve. If you work with tape media you know that it’s a very manually job that takes up to at least an hour or more a week changing and reloading even with a tape library. The use of tape is still required due to policies within the company so while I don’t see if totally going away I figured that we could at least centralize it. Now for replication I used XOsoft but I don’t see why rsync wouldn’t work if configured properly but we have licensed the product, it’s very easy to use, and provides some nice options. Now I don’t work for CA in any way and this configuration may not be total supported in the way that I am documenting in this blog. If you ask me CA should add the feature to replication their file based backups to remote locations out of the box.

  • I am going to keep this simple, the first step is to configure the remote Arcserve server and backup jobs to use the deduplication devices.
  • Install the xosoft engine on the remote Arcserve server.
  • In the datacenter install the XOsoft Control Service. This can be either on an Arcserve media server or a dedicated server just for the control service software.
  • Install the xosoft engine on a Arcserve media server in the datacenter. This way Arcserve is installed on the same server with the replicated data from the remote location.
  • Configure the replication scenario to replication the data and index folders of the deduplication devices from the remote site to the central datacenter.
  • Once the data is in the datacenter you can either back it up to tape as it is or configure the export to tape which would require more work.

Now, I left out a lot of details here but most of them revolve around the backup job, polices, notifications, etc which should already be known if your using Arcserve today. One thing to remember is that you don’t want to have the locked files in the datacenter. I have seen that if the deduplication devices are setup in the datacenter the replication could fail if it needs to write a changed file. So, if you do configure the dedup device, remove it once your finished or stop the tape engine while the replication is running. The key is to get complete and consistent replication of the data and index directories.

Here is a document that explains the process a bit more in detail.

I did a few videos to show at a high level how this could be done.

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