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)
Thanks again.
Mark
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