#!/bin/bash

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# Do a relearn when BBU charge falls low

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# Vanessa V 6/7/12

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# Define variables

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ARCH=$(uname -p)

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if [ "$ARCH" == "x86_64" ]; then

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MEGAPATH="/opt/MegaRAID/MegaCli/MegaCli64"

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else

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MEGAPATH="/opt/MegaRAID/MegaCli/MegaCli"

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fi

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# If we already have something in progress, don't do anything

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STATUS=$($MEGAPATH -AdpBbuCmd -GetBbuStatus -aALL | grep "Charger Status")

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if echo "$STATUS" | grep -q -i "In Progress"; then

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echo "Relearn already in progress... exiting"

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exit 0

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else

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# If we already have a progress file, remove it (because we're not in progress anymore)

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[ -f /home/nagios/bbu_relearn.progress ] && rm -f /home/nagios/bbu_relearn.progress

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[ -f /home/nagios/bbu_relearn.error ] && rm -f /home/nagios/bbu_relearn.error

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# See if our BBU is undercharged

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if [ -f $MEGAPATH ]; then

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BBU_OK=$(sudo $MEGAPATH AdpBbuCmd -GetBbuStatus -aALL | grep '^isSOHGood' |awk '{print $2}')

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if [ "$BBU_OK" == "Yes" ]; then

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# BBU_OK=$($MEGAPATH -AdpBbuCmd -GetBbuStatus -aALL | awk '$0~/Relative State of Charge/ {print $(NF-1)}')

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BBU_OK=$(cat /home/nagios/raid_battery_level)

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if [ "$BBU_OK" -lt 80 ]; then

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# The BBU charge is too low, try to force a relearn (the attempt will be logged in the raid controller logs)

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if ! $MEGAPATH -AdpBbuCmd -BbuLearn -a0; then

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touch /home/nagios/bbu_relearn.error

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chown nagios:nagios /home/nagios/bbu_relearn.error

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else

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[ -f /home/nagios/bbu_relearn.error ] && rm -f /home/nagios/bbu_relearn.error

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touch /home/nagios/bbu_relearn.progress

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chown nagios:nagios /home/nagios/bbu_relearn.progress

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# Touch a file to show when this relearn occurred

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touch "/home/nagios/.relearn.$(date +%s)"

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chown nagios:nagios "/home/nagios/.relearn.$(date +%s)"

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fi

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else

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echo "Battery is OK"

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exit 0

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fi

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fi

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fi

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fi

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rm -f MegaSAS.log

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rm -f CtDbg.log

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