SUMMARY: tape errors

From: John Deacon (jrd@star.ucl.ac.uk)
Date: Tue Aug 05 2003 - 06:11:48 EDT


Not many replies to this one and in the end i got the drive and backup
scripts working again by using 'ipcs' to display all the active semaphores
and 'ipcrm' to remove them. once they'd been removed the backups started
working OK.

cheers,

 john

---------- Original message ----------

hi all -

my overnight backups to an HP DLT4000 8-tape library have just started
failing with the following error

 dump: Dumping from host arthur
 dump: Date of this level 0 dump: Thu Jul 31 22:32:38 2003 BST
 dump: Date of last level 0 dump: the start of the epoch
 dump: Dumping /dev/rdisk/dsk5g (/usr) to /dev/ntape/tape0c
 dump: Mapping (Pass I) [regular files]
 dump: Mapping (Pass II) [directories]
 dump: Cannot get semaphores
 get_semaphore(): semget() for fifo_ready_semid: No space left on device
 dump: SIGTERM received
 dump: Unexpected signal -- attempting to rewrite from last checkpoint
 dump: Cannot remove semaphores
 remove_semaphore(): semctl() for fifo_ready_semid: Invalid argument
 dump: Rewinding and unloading tape
 dump: Change Tape: Mount volume 1, tape # 0001
 dump: Device /dev/ntape/tape0c not ready for I/O.
 dump: Cannot fopen /dev/tty for reading
 query(): fopen(): No such device or address
 dump: SIGTERM received
 dump: The ENTIRE dump is aborted
 dump: SIGTERM received
 dump: The ENTIRE dump is aborted

anyone any idead what this means ?

this is on an AlphaStation 500/500 with Tru64 v5.1 PK6.

if i 'manually' load a tape using mcutil i can read/write to it OK but
my backup shell script produces the errors above.

TIA,

 john

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John Deacon | UCL Starlink Site Manager
Dept Physics and Astronomy | Email: jrd@star.ucl.ac.uk
University College London | Tel: 020 7679 7147
Gower Street London WC1E 6BT | Fax: 020 7679 7145
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