On 14-10-22 01:24 AM, Robert Oschwald wrote: > Using Bacula Server 7.0.4 on CentOS6_64. > > One thing which annoys me is that the sg device node for TapeAlert changes > with every reboot from /dev/sg4 to /dev/sg6 and vice versa. > Is there any setting I can set in udev to get sticky device nodes for my tape > device changer device node? > > System has a LSI 3Ware 9650SE controller installed which is the one fighting > for sg device node with my HP Ultrium 4 SCA tape device. > > Thanks, > Robert >
I use the entries in /dev/tape/by-id/ on my servers - not sure if Centos has that implemented or not but it's the best way to ensure a consistent path to a device, even if it changes SCSI controllers or whatever: $ ls -l /dev/tape/by-id/ total 0 lrwxrwxrwx 1 root root 9 Oct 17 07:30 scsi-1IBM_33622LX_002LX23B4384_LL0 -> ../../sg3 lrwxrwxrwx 1 root root 9 Oct 17 07:30 scsi-1IBM_ULT3580-TD3_1210240676 -> ../../st0 lrwxrwxrwx 1 root root 10 Oct 17 07:30 scsi-1IBM_ULT3580-TD3_1210240676-nst -> ../../nst0 Even if you move the tape drive to another machine, your config stays the same - my changer will always be on /dev/tape/by-id/scsi-1IBM_33622LX_002LX23B4384_LL0 and the drive itself will always be at /dev/tape/by-id/scsi-1IBM_ULT3580-TD3_1210240676 Now, if you happen to replace a tape drive or something you will need to update the config, but no matter what else happens on the server the /dev/tape/by-id (and /dev/disk/by-id entries for that matter) will stay the same. Bryn ------------------------------------------------------------------------------ Comprehensive Server Monitoring with Site24x7. Monitor 10 servers for $9/Month. Get alerted through email, SMS, voice calls or mobile push notifications. Take corrective actions from your mobile device. http://p.sf.net/sfu/Zoho _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
