[Amanda-users] Backup incremental files/ Barcode band-autoloader

[Taz_Tasmania]

Hello,

i have two to ask to Amanda.

I have installed a Debian 7. In the packages are the version 3.3.1 from Amanda.

1.)
Can Amanada work with a barcode band-autoloader?

2.)
I have a big file (25GB) and each day becomes the file to end a piece longer. 
Can Amanda backup the difference from this file and not the complete file by 
incremental?

Timo

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Re: [Amanda-users] Backup incremental files/ Barcode band-autoloader

[Gerrit A. Smit :: TI]

Op 08-06-15 om 16:20 schreef Taz_Tasmania:


1.)
Can Amanada work with a barcode band-autoloader?

https://forums.zmanda.com/showthread.php?2224-How-amanda-interact-with-barcodes

Re: [Amanda-users] Backup incremental files

[Gerrit A. Smit :: TI]

Op 08-06-15 om 16:20 schreef Taz_Tasmania:


2.)
I have a big file (25GB) and each day becomes the file to end a piece longer. 
Can Amanda backup the difference from this file and not the complete file by 
incremental?


AFIK Amanda does things on file system level, not file level.

Gerrit

Re: [Amanda-users] Backup incremental files

[Gerrit A. Smit :: TI]

Op 08-06-15 om 17:01 schreef Cuttler, Brian (HEALTH):


Amanda manages DLE (DiskList Entries) at the file system level, the tools used 
to back up the file systems are all native to the OS (of the amanda client) 
were the file system lives. The only tools I've seen used for backup are GTAR,
STAR and Dump, which is not to say that you couldn't possibly roll-you-own, but 
it isn't something that I've seen discussed on the list before



I think the only thing that would help is using ZFS or Btrfs or anything else 
which knows snapshots.


Gerrit

Re: [Amanda-users] Backup incremental files

[Gerrit A. Smit :: TI]

Cuttler, Brian (HEALTH) schreef op 08-06-15 om 17:18:


I see what you are saying, and while the filesystem may support a method of 
backing up the file change, gtar isn't the tool to use for recording that delta 
(zfs is not amenable to DUMP, nor would that meet the request).
I am told that with the right ZFS-mounts you can generate a binary 
stream comprising a delta.

You can dump that, with ... whatever.
The other way around: ZFS can read that binary stream.

Gerrit