It sounds like the "append-only mode" described in: https://www.dell.com/community/en/conversations/celerra/ndmp-backups-to-ibm-ultrium-td5-drive/647f195bf4ccf8a8dec3aa95 https://www.ibm.com/docs/en/ts4300-tape-library?topic=features-data-safe-append-only-mode https://support.oracle.com/knowledge/Sun%20Microsystems/1368914_1.html
__Martin >>>>> On Thu, 18 Apr 2024 18:41:12 -0300 (BRT), Heitor Faria said: > > Dear Bacula Users, > > > > I wonder if someone had faced a similar problem that have been haunting me > for weeks and I found no exact similar case on the internet. > > This partitioned tape library with two drivers for the Bacula machine cannot > perform a weof diretcly: > > > > [root@localhost Device]# mt -f /dev/tape/by-id/scsi-35005076044064c01-nst weof > /dev/tape/by-id/scsi-35005076044064c01-nst: Input/output error > mt: The tape is write-protected. > > > > > And the dmesg displays the error: > > > > [Thu Apr 18 17:32:01 2024] st 14:0:0:0: [st0] Sense Key : Data Protect > [current] > [Thu Apr 18 17:32:01 2024] st 14:0:0:0: [st0] Add. Sense: Operator selected > write protect > > > > > However, if we do an eod before weof, it displays no error. > > > > [root@localhost Device]# mt -f /dev/tape/by-id/scsi-35005076044064c01-nst eod > [root@localhost Device]# mt -f /dev/tape/by-id/scsi-35005076044064c01-nst weof > > > > > But still, I cannot use the tape with Bacula, or test it with btape: > > > > [root@localhost Device]# /opt/bacula/bin/btape > /dev/tape/by-id/scsi-35005076044064c01-nst > Tape block granularity is 1024 bytes. > btape: butil.c:296-0 Using device: > "/dev/tape/by-id/scsi-35005076044064c01-nst" for writing. > btape: btape.c:475-0 open device "Drive-0" > (/dev/tape/by-id/scsi-35005076044064c01-nst): OK > *label > Enter Volume Name: test > btape: block.c:301-0 [SE0201] Write error at 0:0 on device "Drive-0" > (/dev/tape/by-id/scsi-35005076044064c01-nst) Vol=test. ERR=Input/output error. > 18-Apr 17:39 btape JobId 0: Error: block.c:301 [SE0201] Write error at 0:0 on > device "Drive-0" (/dev/tape/by-id/scsi-35005076044064c01-nst) Vol=test. > ERR=Input/output error. > > > > > And the same dmesg Data Protect message appears. > > The curious thing is we are able to write and restore some files using tar > using the same drive, but only if we manually move the tape: > > > > [root@localhost Device]# tar cvf /dev/tape/by-id/scsi-35005076044064c01-nst > /etc/resolv.conf > tar: Removing leading `/' from member names > /etc/resolv.conf > [root@localhost Device]# tar tvf /dev/tape/by-id/scsi-35005076044064c01-nst > tar: This does not look like a tar archive > tar: Exiting with failure status due to previous errors > [root@localhost Device]# mt -f /dev/tape/by-id/scsi-35005076044064c01-nst bsf > 2 > [root@localhost Device]# mt -f /dev/tape/by-id/scsi-35005076044064c01-nst fsf > [root@localhost Device]# tar tvf /dev/tape/by-id/scsi-35005076044064c01-nst > -rw-r--r-- root/root 74 2024-04-18 16:24 etc/resolv.conf > > > > > mt status as follows: > > > > [root@localhost Device]# mt -f /dev/tape/by-id/scsi-35005076044064c01-nst > status > SCSI 2 tape drive: > File number=20, block number=1, partition=0. > Tape block size 0 bytes. Density code 0x5c (LTO-7). > Soft error count since last status=0 > General status bits on (1010000): > ONLINE IM_REP_EN > > > > > The tapes are new, LTO7 such as the drive, the red read-only physical tape > switches are open, no encryption is used by the drivers. > > We already tried two different OSes with the same behavior. Ubuntu and Rocky > Linux. > > There are no relevant tape library error logs. > > Any hints? > > > > Rgds. > > > MSc,MBA Heitor Faria (Miami/USA) > Bacula LATAM CIO > > mobile1: + 1 909 655-8971 > mobile2: + 55 61 98268-4220 > > > > bacula.lat | bacula.com.br > > > _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
