写了个简单的自动扩容LVM脚本

#!/bin/bash
echo "- - -" >  /sys/class/scsi_host/host0/scan
diskn=$(fdisk -l | grep "Disk " | grep "/dev/sd" | awk '{print $2}' | sort -r | head -1 | cut -d : -f 1)
pvcreate $diskn
vgn=$(vgdisplay | grep "VG Name" | awk '{print $3}')
vgextend $vgn $diskn
lvp=$(lvdisplay | grep "LV Path" | awk '{print $3}')
lvextend -l +100%FREE $lvp
xfs_growfs $lvp