> On Feb 2, 2018, at 7:07 AM, Alan Brown <a.br...@ucl.ac.uk> wrote:
>
> On 31/01/18 03:23, Kenneth Garges wrote:
>> I’m having trouble getting a tape library to work. Individual tape drive
>> seems ok but the library sometimes makes btape hang requiring a reboot. Or
>> it fails.
>
>
> > # Define a Virtual autochanger
>
> Remove anything you're not actually using. They're just going to add
> confusion.
>
>> # Quantum Scalar i80 tape library at UCSC
>> # Hostname of library: core-prod-jb-2
>> #
>> Autochanger {
>> Name = "core-prod-jb-2"
>> Device = "Drive1"
>> # Device = "Drive2"
>> Changer Command = "/usr/local/etc/bacula/mtx-changer %c %o %S %a %d"
>> # Changer Device = /dev/ch0
>> Changer Device = /dev/pass42
>> }
>
> *ahem*
>
> MTX is _only_ designed to interface to scsi generic devices. Unless
> /dev/pass42 is another name for the generic device you'll have problems.
Can confirm /dev/pass* devices on FreeBSD are the right thing to use. From
https://dan.langille.org/2016/02/04/dell-tl4000-tape-library-running-btape-and-configuring-baculas-mtx-changer/
$ sudo camcontrol devlist
<IBM ULT3580-HH4 C7Q1> at scbus0 target 0 lun 0 (pass0,sa0)
<IBM 3573-TL B.60> at scbus0 target 0 lun 1 (pass1,ch0)
<IBM ULT3580-HH4 C7Q1> at scbus0 target 1 lun 0 (pass2,sa1)
<IBM 3573-TL B.60> at scbus0 target 1 lun 1 (pass3,ch1)
<CT480BX200SSD1 MU01.4> at scbus1 target 0 lun 0 (ada0,pass4)
<CT480BX200SSD1 MU01.4> at scbus3 target 0 lun 0 (ada1,pass5)
CAM is the Common Access Method for the SCSI/ATA subsystem:
https://www.freebsd.org/cgi/man.cgi?query=cam&sektion=4&manpath=FreeBSD+11.0-RELEASE
$ sudo mtx -f /dev/pass0 inquiry
Product Type: Tape Drive
Vendor ID: 'IBM '
Product ID: 'ULT3580-HH4 '
Revision: 'C7Q1'
Attached Changer API: No
$ sudo tapeinfo -f /dev/pass0
Product Type: Tape Drive
Vendor ID: 'IBM '
Product ID: 'ULT3580-HH4 '
Revision: 'C7Q1'
Attached Changer API: No
SerialNumber: '1K10012996'
MinBlock: 1
MaxBlock: 16777215
Ready: yes
BufferedMode: yes
Medium Type: 0x48
Density Code: 0x46
BlockSize: 0
DataCompEnabled: yes
DataCompCapable: yes
DataDeCompEnabled: yes
CompType: 0x1
DeCompType: 0x1
BOP: yes
Block Position: 0
Partition 0 Remaining Kbytes: -1
Partition 0 Size in Kbytes: -1
ActivePartition: 0
EarlyWarningSize: 0
$ sudo tapeinfo -f /dev/pass1
Product Type: Medium Changer
Vendor ID: 'IBM '
Product ID: '3573-TL '
Revision: 'B.60'
Attached Changer API: No
SerialNumber: '00X4U78G4272_LL0'
Ready: yes
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