AIT and DLT tape drives take longer to come on-line than the original
chg-*-mtx scripts expected. I have attached the version that I modified to
work with my QualStar that has a wait loop built in to get past this
problem.
markh
-----Original Message-----
From: Jennifer Peterson [mailto:[EMAIL PROTECTED]]
Sent: Thursday, January 17, 2002 8:04 AM
To: [EMAIL PROTECTED]
Subject: Re: ADIC Fastor DLT
Funny you should ask. I'm currently working on this very system. I'm
using chg-zd-mtx with some success, but there's still some stuff I
haven't been able to hammer out. If anyone has any insight I would be
much appreciative.
I was able to amlabel my tapes just fine, and "amtape baknon current"
returns the label that I expect to see in the changer, and if I do an
amcheck with the tape that amanda expects already in the changer, amanda
reads the label and everything is fine. However, if amanda needs to go
out a retrieve tapes from the slots, either with amtape or with amcheck,
it can't read the label once the tape gets to the changer. I get
chg-zd-mtx:: no tape online.
Does anyone know why this would happen?
Thanks,
Jenn
-----
Message-ID: <[EMAIL PROTECTED]>
From: root <[EMAIL PROTECTED]>
To: Mark Holm <[EMAIL PROTECTED]>
Subject: chg-qs-mtx
Date: Thu, 17 Jan 2002 09:05:09 -0800
X-Mailer: Internet Mail Service (5.5.2650.21)
#!/bin/sh
#
# Exit Status:
# 0 Alles Ok
# 1 Illegal Request
# 2 Fatal Error
#
# Setup path and
# try to hit all the possibilities here
prefix=/usr
exec_prefix=/usr
sbindir=/usr/sbin
libexecdir=/usr/lib/amanda
PATH=$sbindir:$libexecdir:/usr/local/sbin:/usr/bin:/bin:/usr/sbin:/sbin:/usr
/ucb:/usr/local/bin
export PATH
#
# Check for debug log directory and setup to use it if available
#
if [ -d "/tmp/amanda" ]; then
DBGFILE=/tmp/amanda/changer.debug
else
DBGFILE=/dev/null
fi
USE_VERSION_SUFFIXES="no"
if test "$USE_VERSION_SUFFIXES" = "yes"; then
SUF="-2.4.2p2"
else
SUF=
fi
#
# Setup variables read from amanda.conf file
#
# Note! The tape dev defined below is the physical device i.e. /dev/nrst0
# The changer dev is also the physical device for the robotics
typically
# this is /dev/sg*
#
tape=`amgetconf$SUF tapedev`
TAPE=`amgetconf$SUF changerdev`; export TAPE # for mtx command
if test "$tape" = "/dev/null" -o "$TAPE" = "/dev/null" -o "$tape" = "" -o
"$TAPE" = ""; then
echo "Both tapedev and changerdev must be specified in config file";
exit 2;
fi
#
# Read in configuration paramters for this configuration. Thesesare defined
in
# the file defined in changerfile with .conf appended.
#
CHANGERCONF=`amgetconf$SUF changerfile`.conf
firstslot=`grep ^firstslot $CHANGERCONF | awk '{print $2}'`
endslot=`grep ^endslot $CHANGERCONF | awk '{print $2}'`
cleanslot=`grep ^cleanslot $CHANGERCONF | awk '{print $2}'`
cleancycle=`grep ^cleancycle $CHANGERCONF | awk '{print $2}'`
chgtapedev=`grep ^chgtapedev $CHANGERCONF | awk '{print $2}'`
needeject=`grep ^needeject $CHANGERCONF | awk '{print $2}'`
if test "$firstslot" = "/dev/null" -o "$firstslot" = ""; then
echo "Changer definition of firstslot must be specified in the
$CHANGERCONF config file";
exit 2;
fi
if test "$endslot" = "/dev/null" -o "$endslot" = ""; then
echo "Changer definition of endslot must be specified in the $CHANGERCONF
config file";
exit 2;
fi
if test "$cleanslot" = "/dev/null" -o "$cleanslot" = ""; then
echo "Changer definition of cleanslot must be specified in the
$CHANGERCONF config file";
exit 2;
fi
#
# This is the Transfer element number as defined by MTX. Typically 0 for the
# first drive and 1 for the second
#
if test "$chgtapedev" = ""; then
echo "chgtapedev must be specified in the $CHANGERCONF config file";
exit 2;
fi
if test "$cleancycle" = "/dev/null" -o "$cleancycle" = ""; then
cleancycle=10
fi
if test ! "$needeject" = "1"; then
needeject=0
fi
echo "firstslot -> $firstslot" >> $DBGFILE
echo "endslot -> $endslot" >> $DBGFILE
echo "cleanslot -> $cleanslot" >> $DBGFILE
echo "cleancycle -> $cleancycle" >> $DBGFILE
echo "chgtapedev -> $chgtapedev" >> $DBGFILE
echo "needeject -> $needeject" >> $DBGFILE
changerfile=`amgetconf$SUF changerfile`
echo "changerfile -> $changerfile" >> $DBGFILE
if [ "$changerfile" = "" ]; then
changerfile=$HOME/changer
fi
cleanfile=$changerfile-clean${chgtapedev}
accessfile=$changerfile-access${chgtapedev}
[ ! -f $cleanfile ] && echo 0 > $cleanfile
[ ! -f $accessfile ] && echo 0 > $accessfile
cleancount=`cat $cleanfile`
accesscount=`cat $accessfile`
#
#
# Now that we have the basics defined set the system standards
# Modify these to fit your system
#
myname=$0
MT="/bin/mt"
MTF="-f"
MTX="mtx -f $TAPE"
DD=/bin/dd
maxwaittime=200
#
# Function definitions
#
eject_tape() {
#
# Check to see if we even need to do this
if [ "$needeject" = "0" ]; then
return
fi
res=`$MT $MTF $tape off 2>&1`
status=$?
if [ $status -ne 0 -a "$res" != "${tape}: No medium found" ];then
echo " -> eject_tape status $status" >> $DBGFILE
echo " -> eject_tape res $res" >> $DBGFILE
echo " -> Drive Timed Out on eject" >> $DBGFILE
#
# Try it again - it sometimes frees up on two tries
res=`$MT $MTF $tape off 2>&1`
status=$?
if [ $status -ne 0 ];then
echo " -> eject_tape 2 status $status" >> $DBGFILE
echo " -> eject_tape 2 res $res" >> $DBGFILE
echo " -> Drive Timed Out again on eject" >> $DBGFILE
echo "0 Drive timed out"
exit 2
fi
fi
}
wait_for_tape() {
time_remaining=$maxwaittime
tape_online
while [ $tape_ready = "FALSE" -a $time_remaining -gt 0 ]; do
sleep 5
time_remaining=$(( $time_remaining - 5 ))
tape_online
done
if [ $time_remaining -le 0 ]; then
echo " -> Drive Timed Out" >> $DBGFILE
echo "0 Drive timed out"
exit 1
fi
}
#
tape_online() {
if [ `$MT $MTF $tape status | grep -ci online` -eq 1 ]; then
echo " -> Drive Ready" >> $DBGFILE
tape_ready="TRUE"
else
echo " -> Drive Not Ready" >> $DBGFILE
tape_ready="FALSE"
fi
}
#
readstatus() {
used=`$MTX status |
grep "Element ${chgtapedev}\:" |
awk '/Full/ {print $7}; /Empty/ {print -1};'`
if [ -z "$used" ]; then
used="-1";
fi
}
eject() {
readstatus
if [ $used -gt 0 ];then
eject_tape
$MTX unload $used $chgtapedev > /dev/null 2>&1
echo 0 $tape
sleep 10
exit 0
else
echo "0 Drive was not loaded"
exit 1
fi
}
reset() {
readstatus
if [ $used -gt 0 ];then
eject_tape
$MTX unload $used $chgtapedev > /dev/null 2>&1
fi
res=`$MTX load $firstslot $chgtapedev > /dev/null 2>&1`
if [ $? -eq 0 ];then
echo "1 $tape"
wait_for_tape
exit 0
else
echo "1 $res"
exit 1
fi
}
#
#
loadslot() {
readstatus
echo " -> loaded $used" >> $DBGFILE
whichslot=$1
case $whichslot in
current)
if [ $used -lt 0 ];then
eject_tape
$MTX unload $used $chgtapedev > /dev/null 2>&1
$MTX load $firstslot $chgtapedev > /dev/null 2>&1
echo "$firstslot $tape"
wait_for_tape
exit 0
else
echo "$used $tape"
exit 0
fi
;;
next|advance)
if [ $used -lt $firstslot ] ; then
load=$firstslot
else
load=`expr $used + 1`
if [ $load -gt $endslot ] ; then
load=$firstslot
fi
fi
;;
prev)
if [ $used -gt $endslot ] ; then
load=$endslot
else
load=`expr $used - 1`
if [ $load -lt $firstslot ] ; then
load=$endslot
fi
fi
;;
first)
load=$firstslot
;;
last)
load=$endslot
;;
[1-9]*)
if [ $firstslot -le $1 -a $1 -le $endslot ]; then
load=$1
else
echo "0 Slot request out of range"
exit 1
fi
;;
clean)
load=$cleanslot
;;
*)
echo "0 illegal request"
exit 1
;;
esac
if [ $load = $used ]; then
echo "$used $tape"
exit 0
fi
if [ $load = $cleanslot ]; then
expr $cleancount + 1 > $cleanfile
echo 0 > $accessfile
else
expr $accesscount + 1 > $accessfile
if [ $accesscount -gt $cleancycle ]; then
$myname -slot clean >/dev/null
fi
fi
# Slot $cleanslot might contain an ordinary tape rather than a cleaning
# tape. A cleaning tape auto-ejects; an ordinary tape does not.
# We therefore have to read the status again to check what
# actually happened.
readstatus
if [ $used -gt 0 ];then
echo " -> unload $used" >> $DBGFILE
eject_tape
res=`$MTX unload $used $chgtapedev >/dev/null 2>&1`
status=$?
echo " -> status $status" >> $DBGFILE
echo " -> res $res" >> $DBGFILE
if [ $status -ne 0 ];then
echo "$res"
exit 2
fi
fi
if [ $whichslot = advance ];then
echo "$load /dev/null"
exit 0
fi
echo " -> load $load" >> $DBGFILE
res=`$MTX load $load $chgtapedev 2>&1`
status=$?
echo " -> status $status" >> $DBGFILE
echo " -> res $res" >> $DBGFILE
if [ $status -ne 0 ];then
#
# One shot at stepping over an empty slot
# If 2 in a row are empty it will fail
#
short_res=`echo $res | awk '{print $6 $7}'`
if [ "${short_res}" = "isEmpty" ]; then
case $whichslot in
prev)
load=`expr $load - 1`
if [ $load -lt $firstslot ] ; then
load=$endslot
fi
;;
next|addvance)
load=`expr $load + 1`
if [ $load -gt $endslot ] ; then
load=$firstslot
fi
;;
esac
res=`$MTX load $load $chgtapedev 2>&1`
status=$?
fi
if [ $status -ne 0 ];then
echo "$load $res"
exit 2
fi
fi
echo " -> rew $load" >> $DBGFILE
echo "$load $tape"
wait_for_tape
# $MT $MTF $tape rewind
# $DD if=$tape count=1 >> $DBGFILE 2>&1
# wait_for_tape
exit 0
}
#
info() {
readstatus
echo " -> info $used" >> $DBGFILE
if [ $used -lt 0 ];then
echo "0 $endslot 1"
else
echo "$used $endslot 1"
fi
exit 0
}
#
echo Args "->" "$@" >> $DBGFILE
while [ $# -ge 1 ];do
case $1 in
-slot)
shift
loadslot $*
;;
-info)
shift
info
;;
-reset)
shift
reset
;;
-eject)
shift
eject
;;
*)
echo "Unknown option $1"
exit 2
;;
esac
done
