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documentation: README.md: use new preserve semantics in examples

pull/88/head
Axel Burri 2016-04-12 12:07:33 +02:00
parent 7a334097c1
commit 6b07316fef
1 changed files with 14 additions and 20 deletions
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README.md
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@ -134,21 +134,19 @@ In this example, we assume you have a laptop with:
Retention policy:
* keep snapshots for 14 days (very handy if you are on the road and
the backup disk is not attached)
* keep all snapshots for 2 days, no matter how frequently you (or
your cron-job) run btrbk
* keep latest daily snapshots for 14 days (very handy if you are on
the road and the backup disk is not attached)
* keep monthly backups forever
* keep weekly backups for 10 weeks
* keep daily backups for 20 days
/etc/btrbk/btrbk-mylaptop.conf:
snapshot_preserve_daily 14
snapshot_preserve_weekly 0
snapshot_preserve_monthly 0
target_preserve_daily 20
target_preserve_weekly 10
target_preserve_monthly all
snapshot_preserve_all 2d
snapshot_preserve 14d
target_preserve 20d 10w *m
snapshot_dir btrbk_snapshots
@ -262,20 +260,18 @@ to only fetch the snapshots.
volume ssh://192.168.0.42/mnt/btr_pool
subvolume home
snapshot_dir btrbk_snapshots
snapshot_preserve_daily all
snapshot_preserve_all forever
snapshot_create no
resume_missing yes
target_preserve_daily 0
target_preserve_weekly 10
target_preserve_monthly all
target_preserve 0d 10w *m
target send-receive /mnt/btr_backup/my-laptop.com
If the server runs btrbk with this config, the latest snapshot (which
is *always* transferred), 10 weeklies and all monthlies are received
from 192.168.0.42. The source filesystem is never altered because of
`snapshot_preserve_daily all`.
`snapshot_preserve_all forever`.
Example: backup from non-btrfs source
@ -295,14 +291,12 @@ follows:
volume /mnt/btr_backup
subvolume myhost_sync
snapshot_name myhost
snapshot_name myhost
snapshot_preserve_daily 14
snapshot_preserve_weekly 20
snapshot_preserve_monthly all
snapshot_preserve 14d 20w *m
This will produce daily snapshots `/mnt/btr_backup/myhost.20150101`,
with retention as defined with the snapshot_preserve_* options.
with retention as defined with the snapshot_preserve option.
Note that the provided script: "contrib/cron/btrbk-mail" has support
for this!
@ -382,7 +376,7 @@ ssh:
# example backup target (also allowing deletion of old snapshots)
command="/backup/scripts/ssh_filter_btrbk.sh -l --target --delete" <pubkey>...
# example fetch-only backup source (snapshot_preserve_daily=all, snapshot_create=no),
# example fetch-only backup source (snapshot_preserve_all=forever, snapshot_create=no),
# restricted to subvolumes within /home or /data
command="/backup/scripts/ssh_filter_btrbk.sh -l --send -p /home -p /data" <pubkey>...