check_snmp_aix_disk.sh

1. customized to display output as MB and GB depends on the size of partition.
2. customized to display usage in percentage only when normal while displaying total, used, free when warn or cri


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#convert size to MB and GB
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> (( total_G=${total_M}/1024 ))
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> (( used_G=${used_M}/1024))
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> (( avail_G=${avail_M}/1024 ))
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>
> if [[ $total_M -gt 1024 ]];then
> total_out="total=${total_G}GB"
> else
> total_out="total=${total_M}MB"
> fi
>
> if [[ $used_M -gt 1024 ]];then
> used_out="used=${used_G}GB"
> else
> used_out="used=${used_M}MB"
> fi
>
> if [[ $avail_M -gt 1024 ]];then
> avail_out="free=${avail_G}GB"
> else
> avail_out="free=${avail_M}MB"
> fi
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> PERF="$PERF ${disk_array[$k]} Usage:${use_percent}%;"
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> PERF="$PERF ${disk_array[$k]} Usage:${use_percent}% ${total_out} ${used_out} ${avail_out};"
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> PERF="$PERF ${disk_array[$k]} Usage:${use_percent}% ${total_out} ${used_out} ${avail_out};"
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