As always, many informative messages were received very quickly. Thanks to
Phil Baldwin, Steve March, Mandell Degerness, Samier Kesou, Alan Nabeth,
Sreenivasa Prasad V. and Joe Fletcher.
My initial searches of the archive for "minilibrary" and TL891 didn't turn
up any info...naturally, it turns out that searches for "robot" or MRU
would have been more fruitful (had I but known).
Dan
Excerpts:
The /dev/mc32 device will be the name of the "Media Changer" device file.
To manipulate the robot directly, you will have the "mcutil" program
installed. Also, NetBackup and Veritas (and any other automated backup
facility you are using) make use of this device file to talk to the
minilibrary. Note: the tape drive(s) will still be accessed directly via
/dev/nrmt0h (for example).
-----
In V4 the "mc" device is supported by the CAM Layered
Component Media Changer driver. The kit for the driver
is on the Associated Products CDROM in modern versions.
In V5 this driver moved to the base system on account
of Compaq's Storage group laying off the engineering
that was responsible for it and then discovering that
people actually used and needed the driver...
:
:
During that same period, many of the tape libraries and
loaders we sold included a free copy of MRU and thus a
license to use the driver. Given the likely age or your
system there's a pretty good chance that you also have
MRU. Check the installed kits for a ROBOT kit. The
commands are "robot", a CLI and "xrobot" a GUI.
-----
For 4.0F you will need to install the SCSI/CAM utils. This gives you
the mcutil app which you can use to control the loader. Uses the format
mcutil -M mc32 -m s:1 d:0 # moves tapes in loader mc32 fom slot 1 to drive
0.
-----
this device file is needed for the mcutil tool (media changer manipulation
command; man 1 mcutil).
With that tool you can direct the media changer in the library to put or get a
tape.
To access the mc, mcutil scans the /etc/mcicap file which needs to be
configured.
-----
To make use of the media changer, you need a media management utility. The
Tru64 utility for 4.0f is called ROBOT (MRU_ROBOT). This is/was downloadable
from the compaq website. You may have it already installed (just do man
robot ). Or you may be using Networker, and will be able to control it with
the networker software.
[Original query]
>I've inherited a pair of 4100's running V4.0F and TruCluster 1.6, one of
>which is configured with a DLT Minilibrary (TL891) tape drive. The notes
>I've got from the previous owner refer to the /dev/mc32 media changer
>device, however I cannot find any reference to this in either Tru64 or
>TruCluster docs, and the various DLT docs I've found don't mention
>Tru64. Would anyone be able to shed any light on this device and how to
>use it (e.g. utilities), or pass along relevant pointers to further
>info? Thanks in advance...
>
>Dan
Received on Mon Sep 17 2001 - 14:29:05 NZST