On Thursday 03 February 2011 00.37:35 Alan Brown wrote:
> On 02/02/11 23:29, Alan Brown wrote:
> > (Interestingly: after using tapeinfo, the PMR seems to have been
> > unlocked.....)
>
> Oops, no. It was a TapeAlert and they're only reported once.
>
> After another round of trying to unload the message reappeared.
>
> # tapeinfo -f /etc/bacula/DEVICES/MSSLY8-0-sg
> Product Type: Tape Drive
> Vendor ID: 'HP      '
> Product ID: 'Ultrium 5-SCSI  '
> Revision: 'I33H'
> Attached Changer: No
> SerialNumber: 'HU1032BTLP'
> TapeAlert[10]:   No Removal: Cannot unload, initiator is preventing
> media removal.
> MinBlock:1
> MaxBlock:16777215
> SCSI ID: 7
> SCSI LUN: 0
> Ready: yes
> BufferedMode: yes
> Medium Type: Not Loaded
> Density Code: 0x58
> BlockSize: 0
> DataCompEnabled: yes
> DataCompCapable: yes
> DataDeCompEnabled: yes
> CompType: 0x1
> DeCompType: 0x1
> Block Position: 1
>
>
> This has been driving me nuts for a long time.
>
> I'd _really_ like to find a repeatable way of making this happen outside
> Bacula in order to get the tape drive manufacturers to investigate
> instead of trying to blow people off.

I would recommend:

1. Ask HP *exactly* what the tape alert means.

2. Write a little program that you can put in the Bacula "unmount" script that 
explicitly unlocks the drive door, then use mt offline to eject the tape.  The 
combination of the two should unload the tape.  If they do not, ask HP if they 
support Linux, and if they say yes, don't mention Bacula but ask them why you 
are unable to unload a drive.

Kern

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