backup, tobackup, dumparenas, restore – backup venti arenas to blu-ray discs or restore from them
These programs reside in
and provide a means to backup
storage to Blu-ray (or other large optical) discs,
while keeping track of which arenas have been written to which discs.
Multiple backup sets are supported,
as is (re)loading a
store from a backup thus made.
The first time that
it will dump all sealed
it will append only those sealed arenas not already written to a disc
within the given backup set.
option uses a backup
other than the default.
option uses a disc burner
other than the default
option goes through the motions but does not burn any tracks
on the Blu-ray disc.
prints the names of all the sealed arenas not yet backed up to a disc
in the current
copies the named
one per track,
to the device
which is first mounted via
is used to extract each arena.
are invoked internally by
copies each data track (assumed to be a saved arena) on
into its appropriate place in the
thus adding the arena to the current
The arena size of the arena partition must match the size of the arenas
on optical disc (except for ~60K of trailing debris on the optical disc arenas).
must be the number (starting from zero)
of the first arena slot in the arenas partition that
you wish to restore into from the current optical disc
necessarily that of the first arena on the disc).
will prompt for confirmation that the first arena is the correct one,
after printing a summary of its arena header.
will proceed normally,
will abort all processing,
to proceed to the next track and ask for confirmation of it.
The arenas partition must be formatted
before restoring into it.
When all the arenas have been restored,
it will be necessary to build a new
the usual steps being to run
buildindex -b ,
backup scripts and records
subdirectory containing records for default backup set
source of dump scores
Venti Backup on Blu-Ray Discs
Assumes a single arenas partition named
Assumes that the file server’s arenas are accessible on it as