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docs: btrbk
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@ -17,22 +17,148 @@ Further resources:
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subvolume: <subvolume-name>
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snapshot: <snapshot-name>.<timestamp>[<N>]
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snapshot: <snapshot-name>.<timestamp>\[<N>]
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timestamp: Can be configured using the `timestamp_format` option.
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N: If multiple snapshots are created at the same time, the increasing counter N differentiates them.
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## Actions
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## Actions and Informative Commands
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`run [filter...]`: In multiple steps, perform snapshots and backups.
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### run [filter...]
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In multiple steps, perform snapshots and backups.
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* Read Data: Perform sanity checks
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* Create Snapshots
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* Create Backups
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* Delete Backups
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* Delete Snapshots
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`clean [filter...]`: Delete incomplete backups (network error, kill signal while send/receive was ongoing).
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### clean [filter...]
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Delete incomplete backups (network error, kill signal while send/receive was ongoing).
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### stats [filter...]
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Print statistics of snapshot and backup subvolumes.
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```shell
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sudo btrbk -c /etc/btrbk/local-backup-hdd.conf stats
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```
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```console
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SOURCE_SUBVOLUME SNAPSHOT_SUBVOLUME TARGET_SUBVOLUME SNAPSHOTS BACKUPS
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/mnt/data/jc-data/cloud.fykml.de /mnt/data/snap2/cloud.fykml.de.* /mnt/backup/snap2/cloud.fykml.de.* 77 17
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/mnt/data/jc-data/cloud.privacy1st.de /mnt/data/snap2/cloud.privacy1st.de.* /mnt/backup/snap2/cloud.privacy1st.de.* 77 17
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Total:
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154 snapshots
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34 backups (34 correlated)
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```
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### diff <from> <to>
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List the modified files since generation (transid) of subvolume <from> in subvolume <to>.
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Columns:
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```
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SIZE file was modified for a total of SIZE bytes
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COUNT file was modified in COUNT generations
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FLAGS "+" file accessed at offset 0 (at least once)
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"c" COMPRESS flag is set (at least once)
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"i" INLINE flag is set (at least once)
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```
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```shell
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sudo btrbk -c /etc/btrbk/local-backup-hdd.conf diff cloud.privacy1st.de.20240222T2300 cloud.privacy1st.de.20240223T1400
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```
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```console
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FLAGS COUNT SIZE FILE
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+c. 1 2.36 MiB data/appdata_oc2uzw0ocw65/appstore/apps.json
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+.. 1 12.00 KiB data/appdata_oc2uzw0ocw65/preview/a/3/f/c/b/b/7/5105712/256-256-crop.jpg
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+.. 1 24.00 KiB data/appdata_oc2uzw0ocw65/preview/a/3/f/c/b/b/7/5105712/384-512-max.jpg
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+.. 1 8.00 KiB data/appdata_oc2uzw0ocw65/preview/d/8/4/f/d/0/7/5105717/256-256-crop.jpg
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+.. 1 20.00 KiB data/appdata_oc2uzw0ocw65/preview/d/8/4/f/d/0/7/5105717/384-512-max.jpg
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+c. 1 208.00 KiB data/appdata_oc2uzw0ocw65/suspicious_login/models/527
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... 18 324.00 KiB data/nextcloud.log
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... 257 40.21 MiB db/binlog.000119
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... 290 48.11 MiB db/ib_logfile0
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+c. 5 5.59 MiB db/ibdata1
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.c. 4 112.00 KiB db/mysql/innodb_index_stats.ibd
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.c. 1 32.00 KiB db/mysql/innodb_table_stats.ibd
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+.. 3 264.00 KiB db/nextcloud/oc_activity.ibd
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.c. 1 32.00 KiB db/nextcloud/oc_activity_mq.ibd
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... 2 16.00 KiB db/nextcloud/oc_appconfig.ibd
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+.. 3 88.00 KiB db/nextcloud/oc_authtoken.ibd
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... 4 40.00 KiB db/nextcloud/oc_calendar_reminders.ibd
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... 3 40.00 KiB db/nextcloud/oc_calendarchanges.ibd
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+.. 6 184.00 KiB db/nextcloud/oc_calendarobjects.ibd
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+.. 4 232.00 KiB db/nextcloud/oc_calendarobjects_props.ibd
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.c. 1 8.00 KiB db/nextcloud/oc_calendarsubscriptions.ibd
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... 8 1.18 MiB db/nextcloud/oc_filecache.ibd
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... 2 48.00 KiB db/nextcloud/oc_filecache_extended.ibd
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... 1 32.00 KiB db/nextcloud/oc_gpodder_episode_action.ibd
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... 2 48.00 KiB db/nextcloud/oc_jobs.ibd
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+c. 1 48.00 KiB db/nextcloud/oc_login_address.ibd
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... 3 64.00 KiB db/nextcloud/oc_login_ips_aggregated.ibd
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... 1 40.00 KiB db/nextcloud/oc_maps_photos.ibd
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... 1 24.00 KiB db/nextcloud/oc_news_feeds.ibd
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+.. 9 4.98 MiB db/nextcloud/oc_news_items.ibd
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... 4 64.00 KiB db/nextcloud/oc_notifications.ibd
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.c. 2 24.00 KiB db/nextcloud/oc_notifications_settings.ibd
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... 1 16.00 KiB db/nextcloud/oc_preferences.ibd
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... 1 16.00 KiB db/nextcloud/oc_preview_generation.ibd
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... 1 16.00 KiB db/nextcloud/oc_suspicious_login_model.ibd
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Total size: 104.47 MiB
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```
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## Cleanup
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First, perform a dryrun. Double-check the output. Then, replace `dryrun` with `run`.
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```shell
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sudo btrbk -c /etc/btrbk/local-backup-ssd.conf \
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--override=snapshot_preserve=2d \
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--override=snapshot_preserve_min=latest \
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--override=snapshot_create=no \
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--override=target_preserve=2d \
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--override=target_preserve_min=latest \
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--print-schedule \
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dryrun
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```
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```console
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SNAPSHOT SCHEDULE
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-----------------
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ACTION SUBVOLUME SCHEME REASON
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delete /mnt/data/snap2/cloud.privacy1st.de.20230927T1827 2d (sunday, 00:00) -
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...
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delete /mnt/data/snap2/cloud.privacy1st.de.20240220T0000 2d (sunday, 00:00) -
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- /mnt/data/snap2/cloud.privacy1st.de.20240221T0000 2d (sunday, 00:00) preserve daily: first of day, 2 days ago, at 00:00
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delete /mnt/data/snap2/cloud.privacy1st.de.20240221T0100 2d (sunday, 00:00) -
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...
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delete /mnt/data/snap2/cloud.privacy1st.de.20240221T2300 2d (sunday, 00:00) -
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- /mnt/data/snap2/cloud.privacy1st.de.20240222T0000 2d (sunday, 00:00) preserve daily: first of day, 1 days ago, at 00:00
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delete /mnt/data/snap2/cloud.privacy1st.de.20240222T0100 2d (sunday, 00:00) -
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...
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delete /mnt/data/snap2/cloud.privacy1st.de.20240222T2300 2d (sunday, 00:00) -
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- /mnt/data/snap2/cloud.privacy1st.de.20240223T0000 2d (sunday, 00:00) preserve daily: first of day, 0 days ago, at 00:00
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delete /mnt/data/snap2/cloud.privacy1st.de.20240223T0100 2d (sunday, 00:00) -
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...
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delete /mnt/data/snap2/cloud.privacy1st.de.20240223T1500 2d (sunday, 00:00) -
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- /mnt/data/snap2/cloud.privacy1st.de.20240223T1600 2d (sunday, 00:00) preserve min: latest
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BACKUP SCHEDULE
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---------------
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ACTION SUBVOLUME SCHEME REASON
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delete /mnt/backup/snap2/cloud.privacy1st.de.20230927T1827 2d (sunday, 00:00) -
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...
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delete /mnt/backup/snap2/cloud.privacy1st.de.20240220T0000 2d (sunday, 00:00) -
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- /mnt/backup/snap2/cloud.privacy1st.de.20240221T0000 2d (sunday, 00:00) preserve daily: first of day, 2 days ago, at 00:00
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- /mnt/backup/snap2/cloud.privacy1st.de.20240222T0000 2d (sunday, 00:00) preserve daily: first of day, 1 days ago, at 00:00
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- /mnt/backup/snap2/cloud.privacy1st.de.20240223T0000 2d (sunday, 00:00) preserve daily: first of day, 0 days ago, at 00:00
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- /mnt/backup/snap2/cloud.privacy1st.de.20240223T1600 2d (sunday, 00:00) preserve min: latest
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```
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## Configuration
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