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echo "
exit $status
fi
else
echo "
fi
done
echo "
exit 0
An example of the pre_start_dfs for Solaris is as follows:
#!/bin/ksh
# Start the servers (two of them in this example):
for id in 0 1; do
key=`expr 3788 + $id`
var=/var/hpss/hdm/hdm$id
$HPSS_PATH_BIN/hdm_admin -k $key -s $id -v $var ps >/dev/null 2>&1
if [ $? != 0 ]; then
echo "
rm -f $var/hdm.out
$HPSS_PATH_BIN/hpss_hdm $var/config.dat $id > $var/hdm.out 2>&1
status=$?
if [ $status != 0 ]; then
echo "
exit $status
fi
else
echo "
fi
done
echo "
exit 0
The pre_stop_dfs script is executed just before shutting down DFS. As part of the shutdown
procedure, AIX will try to unexport or "detach" all DFS aggregates. This ensures that they are left
in a consistent state and don't need to be salvaged before they can be used again. In order to detach
an aggregate, it is important that the HDMs be running first, so this script tends to that. The script
also ensures that no filesets are locally mounted, which would prevent the aggregates from being
detached. As with the other scripts, incidental messages to stderr should be rerouted to stdout.
Here is sample for pre_stop_dfs:
#!/bin/ksh
export HPSS_PATH_BIN=/opt/hpss/bin
for id in 0 1; do
key=`expr 3788 + $id`
var=/var/hpss/hdm/hdm$id
$HPSS_PATH_BIN/hdm_admin -k $key -s $id -v $var ps >/dev/null 2>&1
if [ $? != 0 ]; then
echo "
$HPSS_PATH_BIN/hpss_hdm $var/config.dat $id > $var/hdm.out 2>&1
fi
echo "
HPSS Installation Guide
Release 4.5, Revision 2
could not start hdm$id, status = $status"
hdm$id is already running"
all hdm servers are running"
starting hdm$id"
could not start hdm$id, status = $status"
hdm$id is already running"
all hdm servers are running"
starting hdm$id for cleanup"
unmounting locally mounted filesets for hdm$id"
September 2002
Chapter 7
HPSS User Interface Configuration
447
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