This shows you the differences between two versions of the page.
Both sides previous revision Previous revision Next revision | Previous revision | ||
computing:storage:zfs_snapshot [2021/07/08 13:38] gcooper |
computing:storage:zfs_snapshot [2024/04/05 06:59] (current) gcooper |
||
---|---|---|---|
Line 1: | Line 1: | ||
====== ZFS Snapshots ====== | ====== ZFS Snapshots ====== | ||
- | **Documentation**: | + | **Oracle |
+ | |||
+ | **Napp-IT Replication Docs**: https:// | ||
+ | |||
+ | **Napp-IT Documentation**: | ||
<note important> | <note important> | ||
- | :!: Napp-IT has a commercial (Pro) Replication module available that performs ZFS snapshots and sends them to another ZFS server. | + | :!: Napp-IT has a commercial (Pro) Replication module available that performs ZFS snapshots and pulls them to another ZFS server. |
===== Recover Data from Snapshots ===== | ===== Recover Data from Snapshots ===== | ||
Line 11: | Line 15: | ||
==== By File ==== | ==== By File ==== | ||
- | **Snapshots are automatically mounted** under ''/ | + | **Snapshots are automatically mounted** |
Example with a (three level) nested ZFS filesystem showing an NFS storage repository containing VHDs: | Example with a (three level) nested ZFS filesystem showing an NFS storage repository containing VHDs: | ||
Line 21: | Line 25: | ||
==== Using Clones ==== | ==== Using Clones ==== | ||
- | :!: As with snapshots, creating a clone is nearly instantaneous and initially consumes no additional disk space. Clones can only be created from snapshots. | + | :!: As with snapshots, creating a clone (writeable filesystem) |
If you don't want to muck with the '' | If you don't want to muck with the '' | ||
Line 33: | Line 37: | ||
You can use the ZFS rollback feature to discard all changes made to a file system since a specific snapshot was created. The file system reverts to its state at the time the snapshot was taken. | You can use the ZFS rollback feature to discard all changes made to a file system since a specific snapshot was created. The file system reverts to its state at the time the snapshot was taken. | ||
- | <note warning> | + | <note warning> |
For most rollback cases, using Windows and Previous Version is the suggested method for a roll back as you can restrict the rollback to files and folders. | For most rollback cases, using Windows and Previous Version is the suggested method for a roll back as you can restrict the rollback to files and folders. | ||
You can use Napp-IT menu **ZFS-Filesystem -> Rollback** to initiate a rollback. | You can use Napp-IT menu **ZFS-Filesystem -> Rollback** to initiate a rollback. |