NAME

zetaback_agent - client-side component of zetaback.

SYNOPSIS

  zetaback_agent -v
  zetaback_agent -l [-c conf]
  zetaback_agent -r [-b <timestamp>] [-c conf] [-z zfs]
  zetaback -f <timestamp> [-c conf] [-z zfs]
  zetaback -i <timestamp> [-c conf] [-z zfs]
  zetaback -d <snap> -z <zfs> [-c conf]

DESCRIPTION

zetaback_agent handles requests from zetaback and performs the requested operations on a host. Normally zetaback_agent is only called by zetaback and should never need to be invoked directly.

OPTIONS

The following options are available:

-c <conf>: Use the specified file as the configuration file. The default file, if none is specified is /usr/local/etc/zetaback_agent.conf. The prefix of this file may also be specified as an argument to the configure script.

-d <snap>: Delete the specified snapshot. Requires the use of -z to specify the ZFS filesystem.

-f <timestamp>: Perform a full backup. The name of the backup will include <timestamp>, which is provided by the backup server.

-i <timestamp>: Perform an incremental backup. The name of the backup will include <timestamp>, which is provided by the backup server.

-s <timestamp>: Perform a dataset backup. The name of the backup will include <timestamp>, which is provided by the backup server. This requires the -i option to specify the base dataset the expected by the backup server.

-l: List ZFS filesystems.

-r: Perform a restore.

-b: When performing a restore, if -b is specified, it informs the agent that the receive command is an incremental based of the full snapshot with the timestamp specified. The agent will unmount and rollback the filesystem prior to applying the incremental in order to work around bug 6343779.

-v: Print the version number and exit.

-z: Specify a ZFS filesystem to backup, restore, or delete.

CONFIGURATION

The zetaback_agent configuration file contains a pattern list of ZFS filesystems to be backed up. The pattern list is a Perl-compatible regular expression (PCRE). Only one 'pattern=' line is permitted.

The pattern acts as a filter to reduce the list of filesystems to be backed up. Further excludes from this list are possible by setting a user property on any filesystem that should not be backed up, even if it matches the pattern:

  zfs set com.omniti.labs.zetaback:exclude=on pool/fs

User properties are available on Solaris 10 8/07 and newer, and on Solaris Express build 48 and newer.

Once a pattern and/or exclude properties have been configured on a host, the list of remaining filesystems can be validated by invoking zetaback_agent with the -l option.

Excluding inactive boot environments

The zetaback_agent configuration file also has an option to not back up filesystems that are part of an alternate/inactive boot environment. To enable this option, add the following to the configuration file:

  exclude_inactive_be=1

CONFIGURATION EXAMPLES

All ZFS filesystems

This pattern matches all ZFS filesystems.

  pattern=.

Substring match

This will match anywhere in the name of the ZFS filesystem. This is helpful for catching all ZFS filesystems in a particular zpool, while excluding any others.

  pattern=zones

Left-anchored names

This pattern matches all ZFS filesystems whose names begin with 'www'.

  pattern=^www

Specific ZFS filesystems

This pattern matches specific ZFS filesystems.

  pattern=(?:data|mirrors|www)

Combining with property-based exclude

All filesystems in pool 'zones' except 'foo'

  pattern=^zones
  (At a root shell or with pfexec/sudo):
  zfs set com.omniti.labs.zetaback:exclude=on zones/foo

FILES

zetaback_agent.conf: The zetaback_agent configuration file. The location of the file can be specified on the command line with the -c flag. The prefix of this file may also be specified as an argument to the configure script.