Amanda-Users

Re: Ran a Tapetype for LTO-3 if anyone is interested

2006-07-12 04:06:10
Subject: Re: Ran a Tapetype for LTO-3 if anyone is interested
From: Paul Bijnens <paul.bijnens AT xplanation DOT com>
Date: Wed, 12 Jul 2006 09:18:53 +0200
On 2006-07-11 19:46, Tanniel Simonian wrote:
Amanda Group
I ran the amtapetype from Amanda 2.5.0p2 last night, took about 6 hours to
complete the estimate:

Model: Quantum Superload 3  LTO-3 16 Tape Library.

define tapetype QS3LTO-3 {
 comment "Quantum Super Loader 3 LTO-3 16 tape library"
 length 448369 mbytes
 filemark 6403 kbytes
 speed 37739 kps
}

I ran amtapetype on /dev/st0 on a debian Testing distribution.
SCSI interface VHDI 68 Pin Ultra 160 connector running on a Adaptec 39160
2 channel SCSI 160 PCI-X interface. Server DELL PE 850 Dual Core P4 3.4
GHZ 4 GB RAM

Wow.  You got 440 Gbyte on a 400 Gbyte tape???
But your speed is about half what others got...

Compare this to:

http://wiki.zmanda.com/index.php/Tapetype_definitions#LTO_Ultrium_3_with_400.2F800_Gbyte_tapes

I'm curious about the cause these significant differences!

(Not owning an LTO3 -- just curious.)

--
Paul Bijnens, xplanation Technology Services        Tel  +32 16 397.511
Technologielaan 21 bus 2, B-3001 Leuven, BELGIUM    Fax  +32 16 397.512
http://www.xplanation.com/          email:  Paul.Bijnens AT xplanation DOT com
***********************************************************************
* I think I've got the hang of it now:  exit, ^D, ^C, ^\, ^Z, ^Q, ^^, *
* F6, quit, ZZ, :q, :q!, M-Z, ^X^C, logoff, logout, close, bye, /bye, *
* stop, end, F3, ~., ^]c, +++ ATH, disconnect, halt,  abort,  hangup, *
* PF4, F20, ^X^X, :D::D, KJOB, F14-f-e, F8-e,  kill -1 $$,  shutdown, *
* init 0, kill -9 1, Alt-F4, Ctrl-Alt-Del, AltGr-NumLock, Stop-A, ... *
* ...  "Are you sure?"  ...   YES   ...   Phew ...   I'm out          *
***********************************************************************


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