Amanda-Users

Re: tapetape (not in faq-o-matic)

2006-05-24 19:34:46
Subject: Re: tapetape (not in faq-o-matic)
From: Jon LaBadie <jon AT jgcomp DOT com>
To: amanda-users AT amanda DOT org
Date: Wed, 24 May 2006 19:25:46 -0400
On Wed, May 24, 2006 at 02:54:34PM -0400, Brian Cuttler wrote:
> 
> Paul,
> 
> The -e made a huge difference in runtime.
> 
> For what its worth, here is the result I received.
> 
> # date ; amtapetype -e 400g -f /dev/rmt/3n ; date
> 
> Wed May 24 09:23:58 EDT 2006
> 
> Writing 2048 Mbyte   compresseable data:  33 sec
> Writing 2048 Mbyte uncompresseable data:  33 sec
> Estimated time to write 2 * 409600 Mbyte: 912 sec = 0 h 15 min
> wrote 12386304 32Kb blocks in 189 files in 6539 seconds (short write)
> define tapetype unknown-tapetype {
>     comment "just produced by tapetype prog (hardware compression off)"
>     length 386048 mbytes
>     filemark 0 kbytes
>     speed 61853 kps
> }
> 
> I really should run it again with HW compresson ON.

If like my ultrium 1, the block count will be exactly the same,
but the speed will be slower.

-- 
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)