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Copy pathdom0_mem_precheck
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dom0_mem_precheck
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#!/bin/bash
XM=/usr/sbin/xm
if ! [ -x $XM ]; then
echo "Can not found xm command"
exit 1
fi
if ! $XM list &>/dev/null; then
echo "Unable to connect to xend!"
exit 1
fi
function is_digit()
{
if [ "x$1" = "x" ]; then
return 0
fi
re='^[0-9]+$'
if ! [[ $1 =~ $re ]] ; then
return 1
fi
return 0
}
total=$($XM info | grep total | awk -F: '{print $2}'|sed 's/ //g')
if ! is_digit $total; then
echo "Invalid total memory(\"$total\")!"
exit 1
fi
if [ $total -le 0 ]; then
echo "Unable to get total memory!"
exit 1
fi
dom0_mem=$(echo "768+$total*0.0205"|bc|sed 's/\..*//g')
dom0_cur=$(free -m | head -2|tail -1|awk '{print $2}')
if ! is_digit $dom0_mem; then
echo "Unable to calculate dom0_mem"
exit 1
fi
echo '+------------------------------------|--------------------|--------------------+'
printf "|%-36s|%20s|%20s|\n" "Name" "Current" "Required"
echo '+------------------------------------|--------------------|--------------------+'
printf "|%-36s|%20s|%20s|\n" "Domain-0" $dom0_cur $dom0_mem
req=0
for domid in $($XM list | egrep -v -w "Name|Domain-0" | awk '{print $2}'); do
domname=$($XM list $domid | tail -1 | awk '{print $1}')
max=$($XM list --long $domid | egrep -w "maxmem" | awk '{print $2}' | sed 's/)//g')
mem=$($XM list --long $domid | egrep -w "memory" | awk '{print $2}' | sed 's/)//g')
if [ "x$mem" = "x" ] || ! is_digit $mem ; then
echo "Unable to get domain $i usage!, please check it manually"
exit 1
fi
if [ "x$max" = "x" ] || ! is_digit $max ; then
max=$mem
fi
printf "|%-36s|%20s|%20s|\n" $domname $((mem+10)) $((max+10))
# Add extra 10M which used by guests
req=$((req+mem+10))
done
req=$((req+dom0_mem))
echo '+------------------------------------|--------------------|--------------------+'
printf "|%-36s|%20s|%20s|\n" "Total" $total $req
echo '+------------------------------------|--------------------|--------------------+'
if [ $req -gt $total ]; then
echo "Server $(hostname) does not match minimum memory requirement!"
exit 1
fi
echo "Server $(hostname) matches memory requirement, READY to go!!"
exit 0
[root@localhost ~]# vi dom0_mem_prechk
[root@localhost ~]# cat dom0_mem_prechk
#!/bin/bash
XM=/usr/sbin/xm
if ! [ -x $XM ]; then
echo "Can not found xm command"
exit 1
fi
if ! $XM list &>/dev/null; then
echo "Unable to connect to xend!"
exit 1
fi
function is_digit()
{
if [ "x$1" = "x" ]; then
return 0
fi
re='^[0-9]+$'
if ! [[ $1 =~ $re ]] ; then
return 1
fi
return 0
}
total=$($XM info | grep total | awk -F: '{print $2}'|sed 's/ //g')
if ! is_digit $total; then
echo "Invalid total memory(\"$total\")!"
exit 1
fi
if [ $total -le 0 ]; then
echo "Unable to get total memory!"
exit 1
fi
dom0_mem=$(echo "768+$total*0.0205"|bc|sed 's/\..*//g')
dom0_cur=$(free -m | head -2|tail -1|awk '{print $2}')
if ! is_digit $dom0_mem; then
echo "Unable to calculate dom0_mem"
exit 1
fi
echo '+------------------------------------|--------------------|--------------------+'
printf "|%-36s|%20s|%20s|\n" "Name" "Current" "Required"
echo '+------------------------------------|--------------------|--------------------+'
printf "|%-36s|%20s|%20s|\n" "Domain-0" $dom0_cur $dom0_mem
req=0
for domid in $($XM list | egrep -v -w "Name|Domain-0" | awk '{print $2}'); do
domname=$($XM list $domid | tail -1 | awk '{print $1}')
max=$($XM list --long $domid | egrep -w "maxmem" | awk '{print $2}' | sed 's/)//g')
mem=$($XM list --long $domid | egrep -w "memory" | awk '{print $2}' | sed 's/)//g')
if [ "x$mem" = "x" ] || ! is_digit $mem ; then
echo "Unable to get domain $i usage!, please check it manually"
exit 1
fi
if [ "x$max" = "x" ] || ! is_digit $max ; then
max=$mem
fi
printf "|%-36s|%20s|%20s|\n" $domname $((mem+10)) $((max+10))
# Add extra 10M which used by guests
req=$((req+mem+10))
done
req=$((req+dom0_mem))
echo '+------------------------------------|--------------------|--------------------+'
printf "|%-36s|%20s|%20s|\n" "Total" $total $req
echo '+------------------------------------|--------------------|--------------------+'
if [ $req -gt $total ]; then
echo "Server $(hostname) does not match minimum memory requirement!"
exit 1
fi
echo "Server $(hostname) matches memory requirement, READY to go!!"
exit 0