Tools to manage ZFS clones with history metadata
Project description
ZFS Manager Manager
Tool to add version control and historic data of a directory with ZFS. The functionality is similar to Solaris beadm but generalized for any ZFS filesystem, not just ROOT and VAR.
The suggested workflow is:
- Initialize (zcm init)
- Make changes in active clone
- Create clone (zcm create)
- Make changes in new clone
- Activate clone (zcm activate)
- [Remove older clones (zcm rm)]
- Go to step 2
Usage
- Initialize ZCM
$ zcm init rpool/directory /directory
ZCM initialized ZFS rpool/directory at path /directory
"rpool/directory" -> root of the ZFS for clones and snapshots.
"/directory" -> path of the filesystem (mountpoint of the active clone).
- Show ZCM information
$ zcm ls /directory
MANAGER A ID CLONE MOUNTPOINT ORIGIN DATE SIZE
rpool/directory 00000001 rpool/directory/00000000 /directory 2021-02-16 10:46:59 32.00 KB
- Create new clones (derived from active)
$ zcm create /directory
Created clone 00000001 at path /directory/.clones/00000001
$ zcm create /directory
Created clone 00000002 at path /directory/.clones/00000002
$ zcm ls /directory
MANAGER A ID CLONE MOUNTPOINT ORIGIN DATE SIZE
rpool/directory * 00000000 rpool/directory/00000000 /directory 2021-02-20 06:51:14 32.00 KB
rpool/directory 00000001 rpool/directory/00000001 /directory/.clones/00000001 00000000 2021-02-20 06:57:01 18.00 KB
rpool/directory 00000002 rpool/directory/00000002 /directory/.clones/00000002 00000000 2021-02-20 06:57:02 18.00 KB
- Activate the previously created clone, mounting it at ZCM path
$ zcm activate /directory 00000002
Activated clone 00000002
The activate command can not be executed from inside the path, therefore the parameter -p is mandatory.
- All the clones are visible at /.clones
$ cd /directory
$ ls .clones
0000000 00000001 00000002
- Remove clones
$ zcm rm /directory 00000001
WARNING!!!!!!!!
All the filesystems, snapshots and directories associated with clone 00000001 will be permanently deleted.
This operation is not reversible.
Do you want to proceed? (yes/NO) yes
Removed clone 00000001
- Destroy ZCM related data
This is dangerous, you should backup data first.
$ zcm destroy /directory
WARNING!!!!!!!!
All the filesystems, clones, snapshots and directories associated with rpool/directory will be permanently deleted.
This operation is not reversible.
Do you want to proceed? (yes/NO) yes
Destroyed ZCM rpool/directory
Project details
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zfs-clone-manager-3.0.0.tar.gz
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