Bacula-users

Re: [Bacula-users] 24Gb tape full after ~15Gb

2008-06-12 09:36:29
Subject: Re: [Bacula-users] 24Gb tape full after ~15Gb
From: Alan Brown <ajb2 AT mssl.ucl.ac DOT uk>
To: John Drescher <drescherjm AT gmail DOT com>
Date: Thu, 12 Jun 2008 14:36:01 +0100 (BST)
On Thu, 12 Jun 2008, John Drescher wrote:

> > DAT/DDS are inherently unreliable, apparently due to the narrow tape
> > width. (8mm helical scan tape formats such as AIT are fine)
> >
> Since AIT was mentioned. I would like to caution people about this.
> The drive makers assume a 2.61:1 compression instead of a 2:1 like
> every one else.

I only ever work off uncompressed drive capacity. Compression is nice when
it works but the native capacity is the most important part.

Sony make a similar assumption for SAIT, but that format now appears to be
a dead-end.

AB


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