The backup commands provide facilities to list and manipulate
backups on a filer.
A backup job runs on a filer as a process that copies a
file system or a subset of it to secondary media, usually
tapes. Data can be restored from the secondary media in
case the original copy is lost. There are several types
of backup processes that run on the filers:
dump
runs natively on the filer.
NDMP
driven by a 3rd party client through NDMP
protocol.
backupstatus [ <ID> ]
displays all active instances of backup jobs on the
filer. For each backup, the backupstatus command
lists the following information:
ID
The unique ID that is assigned to the
backup and persists across reboots
until the backup completes successfully
or is terminated. After that, the ID
can be recycled for another backup.
State
The state can either be ACTIVE or
RESTARTABLE. ACTIVE state indicates
that the process is currently running;
RESTARTABLE means the process is suspended
and can be resumed.
Type
Either dump or NDMP.
Device
The current device. It is left blank
for RESTARTABLE dumps since they are
not running and thus do not have a current
device.
StartDate The time and date that the backup first
started.
Level
The level of the backup.
Path
Points to the tree that is being backed
up.
An example of the backupstatus command output:
ID State Type Device Start Date Level Path
-- ----------- ---- ------ ------------ ----- ---------------
0 ACTIVE NDMP urst0a Nov 28 00:22 0 /vol/vol0/
1 RESTARTABLE dump Nov 29 00:22 1 /vol/vol1/
If a specific ID is provided, the backupstatus
command displays more detailed information for the
corresponding backup.
backupterminate<ID>
A RESTARTABLE dump, though not actively running,
retains a snapshot and other file system resources.
To release the resources, user can explicitly terminate
a RESTARTABLE dump. Once terminated, it
cannot be restarted again.
