Sorry if I have not followed this whole thread, but the command you want to do is:
lsscsi -g The control device names are listed in the last column. The control device name is needed by mtx to actuate the autochanger. The control device name is also needed for some of the tape alert commands. When reading/writing the volumes the normal names in the second to last column are used. By the way, here I use the device names defined in /dev/tape/by-id/. Here mine look like: lrwxrwxrwx 1 root root 9 Feb 6 09:24 scsi-3500143801403cf21 -> ../../sg1 lrwxrwxrwx 1 root root 9 Feb 6 09:24 scsi-3500143801403cf22 -> ../../st0 lrwxrwxrwx 1 root root 10 Feb 6 09:24 scsi-3500143801403cf22-nst -> ../../nst0 I am pretty sure they are defined there by default -- my system is Ubuntu 18.04, but I am not 100% sure about it. Best regards, Kern On 3/3/19 3:37 PM, William Muriithi wrote: > Hi guys, > > On Centos 7 system and had a working tape storage system. Then I restarted > and the whole thing stopped working. > > I have just noticed that the autochanger changed from /dev/sg2 to /dev/sg3. > My initial thought was to use the device UUID, but this device don't seem to > use UUID. > > I thought I could use the alternate name that I pulled from lsscsi command, > but it looks like either the device driver or the script only want to use the > device with sg prefix on the name > > [root@eng-backup01 ~]# mtx -f /dev/sch0 status > /dev/sch0 is not an sg device, or old sg driver > [root@eng-backup01 ~]# > > So, how do you guys solve this problem so that it don't fall apart on every > restart? > > [root@eng-backup01 ~]# lsscsi -l > [0:2:0:0] disk DELL PERC H710P 3.13 /dev/sda > state=running queue_depth=256 scsi_level=6 type=0 device_blocked=0 > timeout=90 > [0:2:1:0] disk DELL PERC H710P 3.13 /dev/sdb > state=running queue_depth=256 scsi_level=6 type=0 device_blocked=0 > timeout=90 > [1:0:0:0] tape IBM ULTRIUM-HH7 J4D1 /dev/st0 > state=running queue_depth=256 scsi_level=7 type=1 device_blocked=0 > timeout=900 > [1:0:0:1] mediumx QUANTUM UHDL 0094 /dev/sch0 > state=running queue_depth=256 scsi_level=3 type=8 device_blocked=0 timeout=0 > [root@eng-backup01 ~]# > > > Regards, > William > > _______________________________________________ > Bacula-users mailing list > Bacula-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/bacula-users > _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
