04-18-2010
A typical phenomenon of tape-drives starting to fail is intermittent write-errors (sometimes disguised as a call for the cleaning-tape). Maybe your tape drive is "starting its end" so to say.
If you are sure your tapes are OK maybe it's the write-head of the drive.
I hope this helps.
bakunin
Last edited by bakunin; 04-18-2010 at 02:33 PM..
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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)