User Manual

Backup Snapshots With ReadyDR
ReadyDR is an alternative way to back up data on your ReadyNAS system. A ReadyNAS
backup makes a copy of files, but a ReadyDR backup makes a copy of the snapshots
on a share or LUN.
Because a ReadyDR backup consists of snapshots, you can retrieve not just the most
recent version of a file, but the same previous versions that you could access on the
ReadyNAS itself.
However, because the ReadyDR backup is share to ReadyDR share or LUN to ReadyDR
share, both the source and destination must be on a ReadyNAS system, and if the source
and destination are on different ReadyNAS systems, the communication method is
specific to ReadyDR.
The ReadyNAS system on which you create the ReadyDR job manages the
communication for the job. This requires that the other ReadyNAS system validate the
connection to the first system. If you log in to the second system from the first system
when you create the ReadyDR job, ReadyDR exchanges the first system's private key
automatically. If you cannot log in, you must copy the public key from the first system
and install it on the second system before creating the ReadyDR job. For information
about transferring the key, see Load System Access Key Before Using ReadyDR on page
290.
A complete share or LUN including snapshots can be large, so the initial data transfer
could take a substantial amount of time. To shorten this initial transfer period, you can
seed the job with a complete copy of the share or LUN by exporting it to removable
media and then importing it onto the destination ReadyNAS. For more information
about seeding a ReadyDR job, see Seed a ReadyDR Job on page 292.
You can create, configure, and delete ReadyDR backup and recovery jobs. You can also
manually start jobs and clear the job log.
You can use ReadyDR to backup data:
•
From a the local ReadyNAS system to itself
•
From the local ReadyNAS system to a remote ReadyNAS system
•
From a remote ReadyNAS system to a local ReadyNAS system
•
From one remote ReadyNAS system to a another ReadyNAS system
Load System Access Key Before Using ReadyDR
ReadyDR jobs are managed by the system on which the job was created. When a
ReadyDR job is created, and when the systems exchange ReadyDR data, the second
system validates the connection to the first system using the first system's private key.
If you log in to the second system from the first system over HTTPS when you create the
Software Manual290Backup and Recovery
ReadyNAS OS 6.10