09-23-2012
You mention that there is now nothing in /dev/rmt.
Numerous times I have seen a patching operation wipe out network gateway and default router files information but I have not seen it affect tape library configurations. However I guess that it's possible that the /dev/rmt 'special node' files are all that is missing. Do you have any other backup of this system other than on the library that you cannot communicate with? If so, you could try restoring /dev/rmt/*
If it's only the /dev/rmt device node that's missing you might just be able to communicate with the library again.
What backup software are you using? Do you know how the tape library was configured in the first place and where its configuration files are?
I know that NetBackup can lose communication with a library but NetBackup provides a button within to rescan for devices and doing that normally fixes things.
As others have mentioned, recheck firmware levels, et al. Also, no harm in continuing with the full recommended patchset.
Also, as someone else has said, what about the library device firmware level; perhaps that's too old.
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LEARN ABOUT SUNOS
device_maps
device_maps(4) File Formats device_maps(4)
NAME
device_maps - device_maps file
SYNOPSIS
/etc/security/device_maps
DESCRIPTION
The device_maps file contains access control information about each physical device. Each device is represented by a one line entry of the
form:
device-name : device-type : device-list :
where
device-name This is an arbitrary ASCII string naming the physical device. This field contains no embedded white space or non-
printable characters.
device-type This is an arbitrary ASCII string naming the generic device type. This field identifies and groups together devices
of like type. This field contains no embedded white space or non-printable characters.
device-list This is a list of the device special files associated with the physical device. This field contains valid device
special file path names separated by white space.
The device_maps file is an ASCII file that resides in the /etc/security directory.
Lines in device_maps can end with a `' to continue an entry on the next line.
Comments may also be included. A `#' makes a comment of all further text until the next NEWLINE not immediately preceded by a `'.
Leading and trailing blanks are allowed in any of the fields.
The device_maps file must be created by the system administrator before device allocation is enabled.
This file is owned by root, with a group of sys, and a mode of 0644.
EXAMPLES
Example 1: A sample device_maps file
# scsi tape
st1:
rmt:
/dev/rst21 /dev/nrst21 /dev/rst5 /dev/nrst5 /dev/rst13
/dev/nrst13 /dev/rst29 /dev/nrst29 /dev/rmt/1l /dev/rmt/1m
/dev/rmt/1 /dev/rmt/1h /dev/rmt/1u /dev/rmt/1ln /dev/rmt/1mn
/dev/rmt/1n /dev/rmt/1hn /dev/rmt/1un /dev/rmt/1b /dev/rmt/1bn:
FILES
/etc/security/device_maps
SEE ALSO
allocate(1), bsmconv(1M), deallocate(1), dminfo(1M), list_devices(1)
NOTES
The functionality described in this man page is available only if the Basic Security Module (BSM) has been enabled. See bsmconv(1M) for
more information.
SunOS 5.10 16 Jan 2001 device_maps(4)