I've had a DLT7000 tape library for some time now backing up our ageing 540 but I've never been terribly happy with the controls for loading/unloading the library. In order to backup start a backup on a given tape I have to either go to the loaders console and tell it to load the tape or I need to know what tape I am on and give the correct number of "mt -f urst0a status" commands to cycle through to the correct tape. I believe that I could use something other than dump to do the backups but dump is free and does exactly what I want. The problem is compounded that since upgrading the firmware on the tape drive (to allow autocleaning) the mt -f urst0a status trick hasn't worked. Is there a better way? I would've thought that there should be some better drive robotics control functions - have they crept in between 4.3 and 5.x?
FYI I'm running 4.3 connected to a overland dlt7100 drive.
Chris
I believe that you can set the Overland Data library to run in sequential "stacker" mode. This mode will automatically change tapes when they are full. There are no robotics controls in DataONTAP.
-----Original Message----- From: owner-toasters@mathworks.com [mailto:owner-toasters@mathworks.com]On Behalf Of Chris Good Sent: Tuesday, June 08, 1999 7:15 AM To: toasters@mathworks.com Subject: DLT library controls
I've had a DLT7000 tape library for some time now backing up our ageing 540 but I've never been terribly happy with the controls for loading/unloading the library. In order to backup start a backup on a given tape I have to either go to the loaders console and tell it to load the tape or I need to know what tape I am on and give the correct number of "mt -f urst0a status" commands to cycle through to the correct tape. I believe that I could use something other than dump to do the backups but dump is free and does exactly what I want. The problem is compounded that since upgrading the firmware on the tape drive (to allow autocleaning) the mt -f urst0a status trick hasn't worked. Is there a better way? I would've thought that there should be some better drive robotics control functions - have they crept in between 4.3 and 5.x?
FYI I'm running 4.3 connected to a overland dlt7100 drive.
Chris -- Chris Good - Muscat Ltd. The Westbrook Centre, Milton Rd, Cambridge UK Phone: 01223 715006 Mobile: 07801 788997 http://www.muscat.com
I believe that you can set the Overland Data library to run in sequential "stacker" mode. This mode will automatically change tapes when they are full. There are no robotics controls in DataONTAP.
That brings up a related question though -- since ndmp allows SCSI commands to be sent directly to the device, that would theoretically allow one to control the robotics over the network via NDMP.
Do any of the NDMP-based packages support this? (Legato, Budtool, whatever)
Has anyone gotten this working by hacking around with NDMP?
Veritas NetBackup comes with an undocumented tool called tldtest. You can use it to send commands to the robotics and move tapes from place to place.
On Tue, 8 Jun 1999, Paul English wrote:
I believe that you can set the Overland Data library to run in sequential "stacker" mode. This mode will automatically change tapes when they are full. There are no robotics controls in DataONTAP.
That brings up a related question though -- since ndmp allows SCSI commands to be sent directly to the device, that would theoretically allow one to control the robotics over the network via NDMP.
Do any of the NDMP-based packages support this? (Legato, Budtool, whatever)
Has anyone gotten this working by hacking around with NDMP?
-- Paul English (Tallpaul) (508) 647-7715 tallpaul@mathworks.com (508) 647-7015 FAX Walkie Channel 2
-=- Benjy Feen benjy@feen.com http://www.feen.com Specialization is for insects. =-=
In article 000201beb1af$26129de0$1701a8c0@sroche.opensystems.com, sroche wrote:
I believe that you can set the Overland Data library to run in sequential "stacker" mode. This mode will automatically change tapes when they are full. There are no robotics controls in DataONTAP.
Indeed thats what I was using although it strikes me as far from ideal. Guess I need to hound overland.
-
Benjy Feen -
cng1＠cecil.muscat.com -
Paul English -
sroche