Amanda-Users

Ran a Tapetype for LTO-3 if anyone is interested

2006-07-11 22:41:06
Subject: Ran a Tapetype for LTO-3 if anyone is interested
From: "Tanniel Simonian" <simonian AT library.ucr DOT edu>
To: amanda-users AT amanda DOT org
Date: Tue, 11 Jul 2006 10:46:33 -0700 (PDT)
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

Tanniel

On Tue, May 23, 2006 2:40 pm, Jon LaBadie wrote:
> On Tue, May 23, 2006 at 01:22:02PM -0700, Pavel Pragin wrote:
>> Brian Cuttler wrote:
>>
>> >Does anyone have the tape type for the LTO3 (Quantum) ?
>> >
>> >Are there any other parameters I should tweak to get better
>> >performance/utilization ?
>> >
>> >This is still a reasonable default ?
>> >
>> >tapebufs 20
>> >
>> >I am running the StorEdge C2 jukebox with lto3 drive on a SunFire 280R
>> >under Solaris 9 with 4 gig of memory.
>> >
>> >
>> Try using this command to determine tapetype:
>> amtapetype -f /dev/nst0   (/dev/nst0) will be diff for solaris i think
>>
>
> A tapetype run on an lto-3 drive without a good estimate option
> might take about 14 days to complete :(
>
> --
> 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)
>
>



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