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Operating Systems HP-UX Failed to open tape device /dev/rmt/0mn:Device busy (errno = 16) Post 302971767 by joeyg on Monday 25th of April 2016 10:27:21 AM
Old 04-25-2016
Yes, a complete restart.
Somehow, based on the owner of the original (in use) job for the tape, leads me to think something a start-up is trying to use the tape drive.
When you restart, you may want to make sure a tape is not in the drive. (Just in case there is something in the start routines.)
 

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tms(7)							 Miscellaneous Information Manual						    tms(7)

NAME
tms - TMSCP magnetic tape interface SYNOPSIS
For XMI/KDM on Alpha-based systems: bus xmi0 at iop0 vector xmierror controller uq0 at xmi? port kdm vector uqintr device tape tms0 at uq0 drive 0 For MSI Bus: only MIPS-based DECsystem 5500 bus msi0 at ibus? vector msi_isr controller dssc1 at msi0 msinode 1 device tape tms3 at dssc1 drive 3 For XMI/CI/HSC on Alpha-based systems: bus xmi0 at iop0 vector xmierror bus ci0 at xmi? port np vector cimna_isr controller hsc6 at ci0 cinode 6 device tape tms3 at hsc6 drive 3 For tms devices dual ported between two controllers: device tape tms2 at * drive 2 DESCRIPTION
The TMSCP driver provides a standard tape drive interface, as described in mtio(7). This is a driver for any controller that adheres to the Tape Mass Storage Control Protocol (TMSCP). The TMSCP controllers communicate with the host through a packet-oriented protocol termed the Tape Mass Storage Control Protocol. Tape Support - Alpha-based systems TA78, TA79, TA81, TA90, TA90E, TA91 Diagnostics All diagnostic messages are sent to the error logger subsystem. FILES
/dev/rmt??? /dev/nrmt??? SEE ALSO
mtio(7), MAKEDEV(8), uerf(8), tapex(8) delim off tms(7)
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