BORG-ANALYZE(1)

NAME
borg-analyze - Analyze archives

SYNOPSIS

borg [common options] analyze [options]

DESCRIPTION

Analyze archives to find "hot spots".

Borg analyze relies on the usual archive matching options to select the archives that should be considered for analysis (e.g. -a series_name). Then it iterates over all matching archives, over all contained files and collects information about chunks stored in all directories it encountered.

It considers chunk IDs and their plaintext sizes (we don't have the compressed size in the repository easily available) and adds up added/removed chunks' sizes per direct parent directory and outputs a list of "directory: size".

You can use that list to find directories with a lot of "activity" - maybe some of these are temporary or cache directories you did forget to exclude.

To not have these unwanted directories in your backups, you could carefully exclude these in borg create (for future backups) or use borg recreate to re-create existing archives without these.

OPTIONS

See borg-common(1) for common options of Borg commands.

  Archive filters

-a PATTERN, --match-archives PATTERN
    only consider archives matching all patterns. see "borg help match-archives".

--sort-by KEYS
    Comma-separated list of sorting keys; valid keys are: timestamp, archive, name, id, tags, host, user; default is: timestamp

--first N
    consider first N archives after other filters were applied

--last N
    consider last N archives after other filters were applied

--oldest TIMESPAN
    consider archives between the oldest archive's timestamp and (oldest + TIMESPAN), e.g. 7d or 12m.

--newest TIMESPAN
    consider archives between the newest archive's timestamp and (newest - TIMESPAN), e.g. 7d or 12m.

--older TIMESPAN
    consider archives older than (now - TIMESPAN), e.g. 7d or 12m.

--newer TIMESPAN
    consider archives newer than (now - TIMESPAN), e.g. 7d or 12m.

SEE ALSO

borg-common(1)

AUTHOR
The Borg Collective