Obnam
From Attie's Wiki
Command Reference
REPO_HOST=me@repo REPO_PATH=~/my_files BACKUP_DIR=/home/me/ obnam -r sftp://${REPO_HOST}/${REPO_PATH} --compress-with=deflate backup --deduplicate=verify --root=${BACKUP_DIR} obnam -r sftp://${REPO_HOST}/${REPO_PATH} --compress-with=deflate generations obnam -r sftp://${REPO_HOST}/${REPO_PATH} --compress-with=deflate fsck obnam -r sftp://${REPO_HOST}/${REPO_PATH} --compress-with=deflate clients obnam -r sftp://${REPO_HOST}/${REPO_PATH} restore
Forgetting
The following (if I've understood correctly), will keep generations using the following policy:
- Hourly, for the last 7 days
- Daily, for the last 30 days
- Weekly, for the last 24 weeks (~6 months)
- Monthly, for the last 24 months (2 years)
- Yearly, for the last 10 years
obnam -r sftp://${REPO_HOST}/${REPO_PATH} forget --keep=168h,30d,24w,24m,10y
Note, that obnam only considers a time period that contains a backup... If you are using daily backups, and specify 168h,30d then obnam will actually keep one backup for each of the first 168 days...? More in the man page