Re: Weird Tape drive behavior

2001-01-26 Thread John R. Jackson
>My workaround is "amlabel -f taeglich taeglich7" every time I insert >tape taeglich7. ... Ick. >The tape is forced to SCSII 2 and no hardware compression. What are >the differences between SCSII 2 and 3 with regard to tapes? Anything >applicable in my case? I don't know, but this has got to b

Re: Weird Tape drive behavior

2001-01-26 Thread Johannes Niess
"John R. Jackson" <[EMAIL PROTECTED]> writes: > >It's worse. With blocksize 0 I get the data and the error, with bs=32k > >I get just the error and 0 blocks read. This applies to ibs/obs=32k > >and bs=32k. ... > > There are several moving parts here that I want to make sure we all are > in sync

Re: Weird Tape drive behavior

2001-01-25 Thread John R. Jackson
>It's worse. With blocksize 0 I get the data and the error, with bs=32k >I get just the error and 0 blocks read. This applies to ibs/obs=32k >and bs=32k. ... There are several moving parts here that I want to make sure we all are in sync on. Some hardware has a blocking size. If you set it to

Re: Weird Tape drive behavior

2001-01-25 Thread Johannes Niess
[EMAIL PROTECTED] (Chris Karakas) writes: [...] > > dd if=/dev/nst0 of=/tmp/dattest ibs=32k obs=32k > ^^^ > (some implementations of dd may need an explicit setting of input and > output block sizes, so don't just use bs=32k for the moment). It's wor

Re: Weird Tape drive behavior

2001-01-25 Thread Chris Karakas
Johannes Niess wrote: > > server:~ # rm /tmp/dattest;mtst -f /dev/nst0 rewind;mtst -f /dev/nst0 > status; echo;dd if=/dev/nst0 of=/tmp/dattest;echo;cat /tmp/dattest Try specifying the block size in the dd command: dd if=/dev/nst0 of=/tmp/dattest ibs=32k obs=32k ^

Weird Tape drive behavior

2001-01-24 Thread Johannes Niess
Hi, I'm having trouble with my Seagate Scorpion 40 (DDS4). It does not read software labels. I've emulated Amanda like this: server:~ # rm /tmp/dattest;mtst -f /dev/nst0 rewind;mtst -f /dev/nst0 status; echo;dd if=/dev/nst0 of=/tmp/dattest;echo;cat /tmp/dattest SCSI 2 tape drive: File number=0,