>>>>> On Tue, 20 Oct 2015 15:02:23 -0700, Mark D Strohm said: > > Hello Patti and Martin- > > Thank you for the replies. > > As I understand it, Bacula should have no problem with LTO hardware > encryption because (once set) it is supposed to be transparent at the user > level, the same as hardware compression. But apparently it is not perfectly > transparent. > > I’m bringing the problem up on the Bacula list because I’m confident it can > be worked around in software (mt and dd relate to the encrypted tape > successfully), and changing the drive firmware isn’t really an option. But > I’m not sure whether a simple configuration change is needed, or if I have to > modify something in the Bacula programs. > > stenc does appear to be configuring the drive encryption properly. It can > move the drive in-to and out-of all the modes I intend to use. It correctly > reports the Key-label active in the drive, and reports mismatches with the > Key-label on the tape. > > The system has been working without encryption for several months, using the > mptspi and st Driver Modules. > > The system log shows only activity after the error. The Storage Daemon stops > working actively when it reaches the second file, and reports an error after > about ten minutes. Then there are log entries as the driver attempts to > abort a task, fails, and resets the device. > > Oct 19 14:19:43 ccnback kernel: mptscsih: ioc0: attempting task abort! > (sc=ffff8801b7682380) > Oct 19 14:19:43 ccnback kernel: st 6:0:3:0: CDB: > Oct 19 14:19:43 ccnback kernel: Read(6): 08 00 00 fc 00 00 > Oct 19 14:19:43 ccnback kernel: mptscsih: ioc0: task abort: FAILED (rv=2003) > (sc=ffff8801b7682380) > Oct 19 14:19:43 ccnback kernel: mptscsih: ioc0: attempting target reset! > (sc=ffff8801b7682380) > Oct 19 14:19:43 ccnback kernel: st 6:0:3:0: CDB: > Oct 19 14:19:43 ccnback kernel: Read(6): 08 00 00 fc 00 00 > Oct 19 14:19:53 ccnback kernel: mptscsih: ioc0: WARNING - Issuing Reset from > mptscsih_IssueTaskMgmt!! doorbell=0x24000000 > Oct 19 14:19:54 ccnback kernel: mptscsih: ioc0: target reset: SUCCESS > (sc=ffff8801b7682380) > Oct 19 14:19:54 ccnback kernel: st0: Error 80000 (driver bt 0x0, host bt 0x8). > Oct 19 14:19:54 ccnback kernel: scsi target6:0:3: Beginning Domain Validation > Oct 19 14:19:54 ccnback kernel: scsi target6:0:3: Ending Domain Validation > Oct 19 14:19:54 ccnback kernel: scsi target6:0:3: FAST-80 WIDE SCSI 160.0 > MB/s DT (12.5 ns, offset 127) > Oct 19 14:19:55 ccnback kernel: scsi target6:0:3: Beginning Domain Validation > Oct 19 14:19:57 ccnback kernel: scsi target6:0:3: Ending Domain Validation > Oct 19 14:19:57 ccnback kernel: scsi target6:0:3: FAST-80 WIDE SCSI 160.0 > MB/s DT (12.5 ns, offset 127)
I'm not an expert on this, but a problem that requires the driver to issue a target reset suggests a bug in the driver or in the drive's firmware. Have you tried smartctl or tapeinfo to get more information about the failure from the drive (e.g. TapeAlert messages)? __Martin ------------------------------------------------------------------------------ _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users