`dump' command - tape size
I am trying to use dump to write to DAT tape (60m long); I believe the capacity of this is something around 2Gb. dump seems to believe that the capacity is something like 45Mb and, contrary to what the manual says, does not keep on writing to the end of the tape, but asks for a new volume after only 45Mb. I tried specifying block size and number of blocks: dump 0unfBb /dev/nst0 16000 64 /var but this seemed to make matters worse rather than better. Then I tried specifying density and length: the figures are obviously outside any range contemplated: dump 0unfds /dev/nst0 10900932 197 and dump refused to accept the density figure, so i had to decrease the density and increase the length until my input was accepted. Should dump be able to detect the end of a DDS tape? If so, should it not use EOT as a marker rather than trying to calculate tape lengths when it is not asked to do so? -- Oliver Elphick[EMAIL PROTECTED] Isle of Wight http://lfix.co.uk/oliver PGP key from public servers; key ID 32B8FAA1 -- TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word unsubscribe to [EMAIL PROTECTED] . Trouble? e-mail to [EMAIL PROTECTED] .
Re: `dump' command - tape size
[sent only to debian-user, not cross-posted to debian-devel] On Thu, 30 Oct 1997 01:30:58 GMT Oliver Elphick (olly@lfix.co.uk) wrote: I am trying to use dump to write to DAT tape (60m long); I believe the capacity of this is something around 2Gb. Yes, about 2Gb. dump seems to believe that the capacity is something like 45Mb and, contrary to what the manual says, does not keep on writing to the end of the tape, but asks for a new volume after only 45Mb. I tried specifying block size and number of blocks: dump 0unfBb /dev/nst0 16000 64 /var but this seemed to make matters worse rather than better. Then I tried specifying density and length: the figures are obviously outside any range contemplated: dump 0unfds /dev/nst0 10900932 197 and dump refused to accept the density figure, so i had to decrease the density and increase the length until my input was accepted. Should dump be able to detect the end of a DDS tape? If so, should it not use EOT as a marker rather than trying to calculate tape lengths when it is not asked to do so? Yes. You probably want dump find itself the end of tape. I personnaly use: dump 0fubB $device 10 4194304 for a 90m 2GB tape without hw compression (which means it will always run to the end of tape whatever happens). Phil. -- TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word unsubscribe to [EMAIL PROTECTED] . Trouble? e-mail to [EMAIL PROTECTED] .
Re: `dump' command - tape size
I am trying to use dump to write to DAT tape (60m long); I believe the capacity of this is something around 2Gb. [snip] I had a bit of difficulty getting dump to work with my T-4000s (4Gb TR-4). What worked for me was defining the tape size in 1K blocks (even though the tape block size is different): dump 0ufB /dev/nst0 400 / So, in your case, try dump 0ufB /dev/nst0 200 / -- _ _ Steve Kostecke| (_)_ __ _ ___ __ [EMAIL PROTECTED]| | | '_ \| | | \ \/ / http://www.mindspring.com/~stk3 | | | | | | |_| | ...the choice of a GNU generation |_|_|_| |_|\__,_/_/\_\ -- TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word unsubscribe to [EMAIL PROTECTED] . Trouble? e-mail to [EMAIL PROTECTED] .
Re: `dump' command - tape size
On Thu, 30 Oct 1997, Oliver Elphick wrote: : I am trying to use dump to write to DAT tape (60m long); I believe the : capacity of this is something around 2Gb. : : dump seems to believe that the capacity is something like 45Mb and, contrary : to what the manual says, does not keep on writing to the end of the tape, but : asks for a new volume after only 45Mb. [ snip ] The latest issue of Sys Admin (is that available in the UK??) had an article about dump ... in it, the author stated that Linux dump is buggy but can be made to work with the right options ... I don't have the article in front of me (I'm at work), but if you send me email I'll look up the article and send you the relevant bits, if you can't find the periodical. FWIW, I don't use dump on any Linux box (yet) ... my tape drives are on BSDI boxes that I'm fighting hard to get rid of. : -- : Oliver Elphick[EMAIL PROTECTED] : Isle of Wight http://lfix.co.uk/oliver : : PGP key from public servers; key ID 32B8FAA1 -- Nathan Norman MidcoNet - 410 South Phillips Avenue - Sioux Falls, SD 57104 Voice: (605) 334-4454 Fax: (605) 335-1173 email: [EMAIL PROTECTED] or [EMAIL PROTECTED] PGP Key ID: 0xA33B86E9 - Public key available at keyservers PGP Key fingerprint: CE03 10AF 3281 1858 9D32 C2AB 936D C472 -- TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word unsubscribe to [EMAIL PROTECTED] . Trouble? e-mail to [EMAIL PROTECTED] .
