In the BlackArmor NAS 220 review, I briefly showed how to set up an rsync-based backup from the NAS 220, to a Synology DS109+. The screenshot from the review is shown in Figure 4. Since the NAS 220 (and its bigger NAS 440 sibling) allows freeform entry of the rsync target module name (Seagate refers to it as Alias name—just to keep us confused), you aren't restricted as you are with the Buffalo NASes.
Figure 4: Seagate BlackArmor NAS to Synology DS109+ rsync settings
But what about using BlackArmor NASes as rsync targets? It turns out that it's possible, but there is a catch. You first have to enable the Backup Server Service, found under the Storage menu. Figure 5 shows a completed setup.
Figure 5: Enabling the BA NAS 220 Backup service
I checked the Backup Service box, accepted the defaults shown for rsync authentication name and password (babak and KaBaB, respectively) and created an Alias name (again, Seagate's term for rsync module) of test and clicked the Submit button.
The catch here is that you can create only one Alias / rsync module and it is an invisible folder. That means that you can't see it when you browse network shares. The only way you know that it's there is when you successfully connect to it when setting up the rsync job on another system.
Once again, I did that on the Synology DS109+, as shown in Figure 6. I entered the NAS 220 Alias name test in the Backup module box and the default Auth Name / Auth pass (babak / KaBaB) from the NAS 220 in the Synology's Username and Password boxes. When I completed the Synology backup wizard, it successfully connected and I was able to run a backup job.
Figure 6: Synology DS109+ backup job to Seagate BlackArmor NAS target
Since the NAS 220 doesn't allow root login, the only way that I could retrieve the data was via an rsync restore. I also did that on the DS109+ using the Backup Restore wizard. I entered the server info for the NAS 220 (Figure 7).
Figure 7: Synology rsync restore server select
And was presented with a folder selection pick list when I successfully connected (Figure 8).
Figure 8: Synology rsync restore folder select
Unfortunately, the only option that the Synology provides is to restore the data to the exact folder that it was backed up from and to overwrite existing files. So this makes Seagate's BlackArmor NASes suitable as rsync targets only for restoring entire directories.