Amanda-Users

Re: datcompression Tandberg SLR7 (update)

2006-02-22 13:52:06
Subject: Re: datcompression Tandberg SLR7 (update)
From: Jon LaBadie <jon AT jgcomp DOT com>
To: amanda-users AT amanda DOT org
Date: Wed, 22 Feb 2006 13:46:32 -0500
On Wed, Feb 22, 2006 at 07:29:16PM +0100, uwe.kaufmann AT infoconsult DOT nu 
wrote:
> Hi,
> 
> this is just to update the current state.
> 
> I replaced the bitchy SLR7 with a brand-new SLR7 (same firmware version) and
> it works without hardware-compression! I replaced the Harddisk in the backup
> machine with a WinXP drive, installed the Tandberg tools and I switched off
> HW-comp. Then I switched back to Linux. amtapetype resulted in:
> 
> define tapetype SLR7 {
>     comment "just produced by tapetype prog (hardware compression off)"
>     length 18889 mbytes
>     filemark 0 kbytes
>     speed 2848 kps
> }
> 
> That's fine, isn't it.
> 

Tandberg claims 20GB.
That is probably 20*1000*1000*1000 = 20,000,000,000 bytes
If you take that and divide by 1024*1024*1024 for binary GB
you get 18.6 GB Pretty good match to your results.

For speed, which amanda does use but is always nice to know,
Tanberg claims 3,000,000 bytes/sec.  Converting to binary kps
I get 2860, again a good match.

-- 
Jon H. LaBadie                  jon AT jgcomp DOT com
 JG Computing
 4455 Province Line Road        (609) 252-0159
 Princeton, NJ  08540-4322      (609) 683-7220 (fax)

<Prev in Thread] Current Thread [Next in Thread>