Author: Mathias Körber <mathias AT koerber DOT org>
Date: Fri, 23 May 2003 22:26:22 +0800
Hi all, [I asked this on UseNet (comp.os.linux.hardware etc), but hope someone here may have some insights too..] I just got a Dell PowerVault 100T DDS4 tapedrive and would like to ensure that when b
The mt command on linux has appropriate options I believe. Also, I'm told the mtx software package includes a program tapeinfo which can tell you the compression status of the device. -- Jon H. LaBad
Author: christopher cuse <ccuse AT manchotnetworks DOT net>
Date: 23 May 2003 16:36:57 +0200
hi mathias, checkout this should allow you to initialize your drive the way you would like. cheers charles chuck.shick AT manchotnetworks DOT net On Fri, 2003-05-23 at 16:26, Mathias Körber wrote:
Author: chuck shick <chuck.shick AT manchotnetworks DOT net>
Date: 23 May 2003 16:57:17 +0200
hi mathias, checkout this should allow you to initialize your drive the way you would like. cheers charles chuck.shick AT manchotnetworks DOT net On Fri, 2003-05-23 at 16:26, Mathias Körber wrote:
Author: Paul Bijnens <paul.bijnens AT xplanation DOT com>
Date: Fri, 23 May 2003 17:23:23 +0200
Question is: How do I do that? Is there a special tape device (/dev/nrmtu0 or such for *u*ncompressed access and the driver will take card of that), or does AMANDA know how to send SCSI commands to i
Author: Gene Heskett <gene.heskett AT verizon DOT net>
Date: Fri, 23 May 2003 12:48:34 -0400
The 'mt' program can control that also. Unforch, with these tapes, the drive, when loading the tape, inpects the flags in the tape header thats reserved for the drives use, and happily overrides your
Author: Mathias Körber <mathias AT koerber DOT org>
Date: Sat, 24 May 2003 11:47:44 +0800
Paul Bijnens <paul.bijnens@x...> wrote: IMPORTANT! You also have to know that, no matter what you had executed as setting for the compression of your drive, if you READ a tape, the drive will set its
Author: Gene Heskett <gene.heskett AT verizon DOT net>
Date: Sat, 24 May 2003 00:17:30 -0400
Thats exactly what will happen in almost all instances from my experience. Change that to a -c true/false, and it would be a winner. The problem with that is that the various drives take various comm
Kinda tough to do on a system such as mine which doesn't have commands or calls to change compression settings. It is done on the "open" call to the tape drive (and driver) by selecting a device name
Author: Mathias Körber <mathias AT koerber DOT org>
Date: Sat, 24 May 2003 14:15:38 +0800
Change that to a -c true/false, and it would be a winner. The problem with that is that the various drives take various commands to effect that, so it might be required to have a preset file, built
Author: Gene Heskett <gene.heskett AT verizon DOT net>
Date: Sat, 24 May 2003 02:31:33 -0400
I'd imagine on the solaris system it turns off the compression everytime it opens the path to the drive if you select the noncompressing device? So basicly you would never need the -c switch, which i
Author: Gene Heskett <gene.heskett AT verizon DOT net>
Date: Sat, 24 May 2003 02:57:59 -0400
AFAIK, you cannot, mt's access is blocked by the open path. Thats from Jon LaBadie, and his system is running solaris, where the drives compression state is set by the choice of /dev/device used. Act