hunter
Explorer
- Joined
- Nov 24, 2013
- Messages
- 94
I have two questions: I set up snapshots and ZFS replication from my new FreeNAS server to my old FreeNAS server. (The old one is built from inexpensive spare parts and does not have ECC memory.)
- If my new FreeNAS server were to disappear one day, could I recover all of my data from just the snapshots on the old FreeNAS server? While it looks like I can, I spent a long time with the FreeNAS documentation and got the idea that the snapshot itself, is like a differential backup (that needs the original backup to function). The documentation also says "A replication task allows you to automate the copy of ZFS snapshots..." Is "ZFS replication" truly creating a complete copy of the ZFS (in other words, the snapshots, which are required for ZFS replication, are NOT the only thing being replicated?)
- Do I need to set the production box to keep the snapshots for more than a month? And can changes be made to the automated snapshot schedule after it has been linked to a replication task? (I went with the default 2 week snapshot retention before thinking about this question and am wondering if that was a mistake)
- Can the non-ECC memory on the old FreeNAS server, if it were to become corrupt, ever "contaminate" my production FreeNAS system using the configuration above?