Zfs recovery of deleted files
ZFS (Zettabyte File System) is a file system that provides reliable data storage and disaster recovery mechanisms. It provides protection against data corruption by using checksums to check the integrity of information.
If you accidentally deleted files on a ZFS volume or they were deleted from the recycle bin, there are several ways to recover this data:
1. Using the command line: You can use the “zfs rollback” command to roll back the volume to an earlier version where the files are still present. For example:
“`
sudo zfs rollback pool_name/dataset@snapshot_name
“`
Replace “pool_name” and “dataset” with the appropriate values for your ZFS volume.
2. Enabling snapshots functionality: If a snapshot was created before deleting the file, you can copy this file from the snapshot back to the main directory.
“`
cp /path/to/snapshot/file /path/to/restore/location
“`
3. Use of third-party tools: There is also third-party software that helps restore deleted data on a ZFS volume, provided the checksums are preserved. Some of them include ZFS Undelete and ZFS Recovery.
It is important to note that the faster you act after deleting files, the greater the chances of successful data recovery. Therefore, it is recommended to make backup copies of your data or use the snapshots function to prevent information loss when files are accidentally deleted.
It is also worth remembering about security: before performing any data recovery operations, always create backups and work with copies of files so as not to damage the data even more.