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author | Chris Timmons <cwt@FreeBSD.org> | 1998-02-18 14:23:40 +0000 |
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committer | Chris Timmons <cwt@FreeBSD.org> | 1998-02-18 14:23:40 +0000 |
commit | b92bbb4ef137f82206bafe3f737d0ce81b7c164f (patch) | |
tree | 9790fc6b3acfdee3788c0dd006390329cab29a45 /misc/amanda32-server/pkg-descr | |
parent | 94bb45af19506b97243c01c719d514bdc20aca1f (diff) | |
download | ports-b92bbb4ef137f82206bafe3f737d0ce81b7c164f.tar.gz ports-b92bbb4ef137f82206bafe3f737d0ce81b7c164f.zip |
Notes
Diffstat (limited to 'misc/amanda32-server/pkg-descr')
-rw-r--r-- | misc/amanda32-server/pkg-descr | 69 |
1 files changed, 12 insertions, 57 deletions
diff --git a/misc/amanda32-server/pkg-descr b/misc/amanda32-server/pkg-descr index d22b3394fd2e..5b33b9939e25 100644 --- a/misc/amanda32-server/pkg-descr +++ b/misc/amanda32-server/pkg-descr @@ -1,68 +1,23 @@ + +** CAUTION ** + +THIS BETA RELEASE OF AMANDA 2.4 BREAKS BACKWARDS COMPATIBILITY WITH +EARLIER AMANDA CLIENTS (PER CHANGES FILE IN THE DISTRIBUTION.) + WHAT IS AMANDA? --------------- -This is an alpha-test release of Amanda, the Advanced Maryland Automatic +This is a release of 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. This release -is currently in daily use at the University of Maryland at College Park -Computer Science Department, backing up all the disks on all the -workstations in the department: currently over 70 gigabytes of data across -more than 400 filesystems on more than 146 workstations and servers, using -a single 5 Gigabyte Exabyte EXB-8500. Here are some features of Amanda: +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: BSD Unix dump/restore, and + * built on top of standard backup software: Unix dump/restore, and later 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. + 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 to operators. - * 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 over net, with either compress or gzip. - * can optionally syncronize with external backups, for those large - timesharing computers where you want to do fu-------------------------------------------- - -Amanda requires a host that is mostly idle at night, with a large capacity -tape drive (e.g. an EXABYTE or DAT tape). This becomes the "tape server -host". All the computers you are going to dump are the "backup client -hosts". The server host can also be a client host. - -Amanda works best with one or more large "holding disk" partition on the -server host available to it for buffering dumps before writing to tape. -The holding disk allows Amanda to run backups in parallel to the disk, only -writing them to tape when the backup is finished. Note that the holding -disk is not required: without it Amanda will run backups sequentially to -the tape drive. Running it this way kills the great performance, but still -allows you to take advantage of Amanda's other features. - -As a rule of thumb, for best performance the holding disk should be larger -than the dump output from your largest disk partitions. For example, if -you are backing up some full gigabyte disks that compress down to 500 MB, -then you'll want 500 MB on your holding disk. On the other hand, if those -gigabyte drives are partitioned into 500 MB filesystems, they'll probably -compress down to 250 MB and you'll only need that much on your holding -disk. Amanda will perform better with larger holding disks. We use 800 MB -for our holding disk. - -Actually, Amanda will still work if you have full dumps that are larger -than the holding disk: Amanda will send those dumps directly to tape one at -a time. If you have many such dumps you will be limited by the dump speed -of those machines. - |