Hot Add Disk RHEL
# echo ‘- – -’ > /sys/class/scsi_host/host0/scan
# pvcreate /dev/your_new_disk
# vgextend VolGroup01 /dev/your_new_disk
# lvextend -l 100%FREE /dev/Your_VG/Your_LV
# lvextend -L+1G /dev/myvg/homevol
# resize2fs /dev/mapper/VolGroup01-LogVol00
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