live adding a new disk to linux running in VMware

In VMware create a new disk (we assume this is the 2nd disk ~ sdb here)
Let’s rescan the bus so linux recognizes it

# echo “- – -” > /sys/class/scsi_host/host0/scan
Now we partition the new disk

# fdisk /dev/sdb
set the type to be 8e (lvm)
Then we check what the name is of the volumegroup

# vgdisplay
and we add the disk to the volumegroup

vgextend vg00 /dev/sdb1
then we add the new space to a certain logical volume (say var)

# lvextend /dev/vg00/lv_var /dev/sdb1
and we resize the filesystem in this logical volume

# resize2fs /dev/vg00/lv_var

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