RS810+ Replication via eSATA

[mcnumara]

I am aware that the RS810+ can be expanded to the RX410 external expansion enclosure, however, I am not interested in increase storage capacity, or backing up to this device. Our needs are to replicate an RS810+ to another RS810+ for an instant failover replacement. Since we are dealing with terabytes of data, my question is; can an RS810+ be connected to another RS810+ via an eSATA cable so I can transfer data from a volume on RS810+ (A) to RS810+ (B)?

Thanks

[iugrifma]

Hi,
I think the short answer is NO.
When a Syno has an eSATA drive connected, the default behaviour is to try and mount the drive in a prescribed location. If you tried to connect two together they would both try and manage each other's volumes (if they saw anything down that channel at all).

The issue really is the shared management between two controlling units. If you really are hoping to replicate terabytes of data copying/replicating between two units is not going to be fast ! (no matter how you connect the units eSATA/iSCSI/NFS).

Depending on the type of data you have (dynamic or static) one solution for mainly static information is to use Rsync between the two units and periodically run a backup this will work well and I do it between my RS810+ and DS209+. But it's no "Failover" solution.