Checks for newly attached drives and initializes them for LVM.

scan-new-disk.sh

#!/bin/sh

for SCSI_HOST in /sys/class/scsi_host/*
do
	echo '- - -' > ${SCSI_HOST}/scan
done

DRIVES=`dmesg | grep 'unknown partition table' | awk '{print $2}' | awk -F':' '{print $1}' | uniq`

for DRIVE in ${DRIVES}
do
	PARTED="parted /dev/${DRIVE}"
	TABLE=`${PARTED} print 2>/dev/null | grep '^Partition Table' | awk '{print $3}'`

	if [ "${TABLE}" = "unknown" ]; then
		echo "(**) ${DRIVE} has unknown partition table, initializing..."
		${PARTED} mktable gpt
		${PARTED} mkpart P1 0% 100%
		${PARTED} print
		pvcreate /dev/${DRIVE}1
	else
		echo "(**) ${DRIVE} already initialized with ${TABLE}."
		${PARTED} print
		pvs | grep ${DRIVE}
	fi
done