Thank you for your advice but the tape is still not working. When I try to back up /etc to tape. It seems the process has been finish from sever screen. but when I pull out the tape, I found that the tape still in original staus, it did not wind. Folloing is the info from dmesg ---------------------------------------------------------------------- [root@Milo /root]# dmesg|grep 'st0' A#tached scsi tape st0 at scsi1, channel 0, id 6,slun 0 st0: Block limits 1 - 16777215 bytes. st0: Error with sense data: Current st09:00: sense key Unit Attentiin
[root@Milo ]# mt -f /dev/st0 status SCSI 2 tape drive: File number=0, block number=0, partition=0. Tape block size 512 bytes. Density codem0x26 (unknown to this mt)S Soft error count since last statusb0 General status bits on (41010000): BOT ONLINE IM_REP_EN --------------------------------------------------------------------- Can you give me some more suggestion? Thank you very much. > On Mon, 27 May 2002, R.Curtis wrote: > > > >>>>> "jz" == Jianping Zhu <[EMAIL PROTECTED]> writes: > > > > jz> Thank you for your advice. > > jz> mt -f /dev/st0 status > > jz> and > > jz> mt -f /dev/st0 rewind > > > > jz> both work. > > > > Good then everything is talking correctly. > > > > jz> how can I make sure that I have permission to write to /dev/st0? > > > > Permissions on /dev/st0 should be such that if you are trying to use > > it as a user: > > > > crw-rw-rw- 1 root disk 9, 0 Apr 11 10:25 /dev/st0 > > > > > > jz> how can I check that /dev/st0 are seen from dmesg ? > > > > > > This is not important now that you are able to talk to the drive. > > > > Now try something like: > > > > mt -f /dev/st0 rewind > > > > then > > > > tar cvf /dev/st0 /etc > > > > > > > > > > jz> Thank you!! > > > > jz> On Mon, 27 May 2002, R.Curtis wrote: > > > > >> >>>>> "jz" == Jianping Zhu <[EMAIL PROTECTED]> writes: > > >> > > jz> I have IBM iseries 230 sever with ridhat linux 7.1on it. I recently boutgh > > jz> a new tape drive for IBM (20/40GB DDS/4 4mm Internal tape dirve) > > >> > > jz> I think I have setup the tape drive in the server. the server can detect > > jz> the tape drive now. > > >> > > jz> But when I try to use linux command to back up a small diretory to the > > jz> tape, it does not work. The tape does not even wind. > > >> > > jz> I used the commamd > > jz> tar cvzf /dev/st0 /home/jianping > > jz> I could see the tape-drive activity indicator and Catridge presence > > jz> indicator on. But When the process finished, I found nothing had been > > jz> done. the tape did not even wind(it was still in the original status). > > >> > > jz> What counld be the potential problem? > > jz> Any suggestion will be greatly appreciated!! > > >> > > >> > > >> How about trying to use some of the mt commands, such as > > >> mt -f /dev/st0 status > > >> or > > >> mt -f /dev/st0 rewind > > >> > > >> These commands are part of the mt-st rpm and should at least tell > > >> you if you can talk to the drive. > > >> > > >> Are you sure that you have permission to write to /dev/st0 and > > >> that /dev/st0 are seen from dmesg ? > > >> > > >> > > >> > > >> -- > > >> R. Curtis > > >> mailto:[EMAIL PROTECTED] http://www.ccux.com > > >> > > >> > > >> > > >> _______________________________________________ > > >> Redhat-list mailing list > > >> [EMAIL PROTECTED] > > >> https://listman.redhat.com/mailman/listinfo/redhat-list > > >> > > > > > > jz> -------------------------------- > > jz> Jianping Zhu > > jz> Department of Computer Science > > jz> Univerity of Georgia > > jz> Athens, GA 30602 > > jz> Tel 706 5423900 > > jz> -------------------------------- > > > > -- > > R. Curtis > > mailto:[EMAIL PROTECTED] http://www.ccux.com > > > > > > > > _______________________________________________ > > Redhat-list mailing list > > [EMAIL PROTECTED] > > https://listman.redhat.com/mailman/listinfo/redhat-list > > > > > -------------------------------- > Jianping Zhu > Department of Computer Science > Univerity of Georgia > Athens, GA 30602 > Tel 706 5423900 > -------------------------------- > > > > _______________________________________________ > Redhat-list mailing list > [EMAIL PROTECTED] > https://listman.redhat.com/mailman/listinfo/redhat-list > -------------------------------- Jianping Zhu Department of Computer Science Univerity of Georgia Athens, GA 30602 Tel 706 5423900 -------------------------------- _______________________________________________ Redhat-list mailing list [EMAIL PROTECTED] https://listman.redhat.com/mailman/listinfo/redhat-list
