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This is Amanda, the Advanced Maryland Automatic Network Disk
Archiver. Amanda is a backup system designed to archive many
computers on a network to a single large-capacity tape drive.
Here are some features of Amanda:
* written in C, freely distributable.
* built on top of standard backup software: Unix dump/restore, GNU Tar
and others.
* will back up multiple machines in parallel to a holding disk, blasting
finished dumps one by one to tape as fast as we can write files to
tape. For example, a ~2 Gb 8mm tape on a ~240K/s interface to a host
with a large holding disk can be filled by Amanda in under 4 hours.
* does simple tape management: will not overwrite the wrong tape.
* supports tape changers via a generic interface. Easily customizable to
any type of tape carousel, robot, or stacker that can be controlled via
the unix command line.
* supports Kerberos 4 security, including encrypted dumps. The Kerberos
support is available as a separate add-on package, see the file
KERBEROS.HOW-TO-GET on the ftp site, and the file docs/KERBEROS in this
package, for more details.
* for a restore, tells you what tapes you need, and finds the proper
backup image on the tape for you.
* recovers gracefully from errors, including down or hung machines.
* reports results, including all errors in detail, in email.
* will dynamically adjust backup schedule to keep within constraints: no
more juggling by hand when adding disks and computers to network.
* includes a pre-run checker program, that conducts sanity checks on both
the tape server host and all the client hosts (in parallel), and will
send an e-mail report of any problems that could cause the backups to
fail.
* can compress dumps before sending or after sending over the net, with
either compress or gzip.
* can optionally synchronize with external backups, for those large
timesharing computers where you want to do full dumps when the system
is down in single-user mode (since BSD dump is not reliable on active
filesystems): Amanda will still do your daily dumps.
* lots of other options; Amanda is very configurable.
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