It seems that
/data is not managed with LVM so you might add space so
/dev/sdb via vCenter and then grow the file system in CentOs
If you want to have LVM for
/data, that will be a bit longer.
Add the disk to VMware, make it show in CentOS :
List host bus numbers :
For each host bus, scan the bus (where [hostX] is the name you get from the previous command):
echo "- - -" > /sys/class/scsi_host/[hostX]/scan
Check the names of your SCSI devices
Rescan the SCSI buses (name are in form X:X:X:X)
echo 1 > /sys/class/scsi_device/X\:X\:X\:X/device/rescan
Then you can
fdisk -l to see your disk
First, you need to create a new Physical Volume with the new disk.
I assume that the disk will be sdc.
Then you can create a new VG or use the existing one :
I assume you'll use the existing one :
vgextend vg55 /dev/sdc
You need to create a Logical Volume to use now
lvcreate -L200G -n lvm_data vg55
You now need to create a filesystem on this volume
You now have a 200GB disk that can be mounted. You might mount
lvm_data somewhere, copy
/data to the new volume, unmount
/data and the
mount /dev/mapper/vg55-lvm_data /data.
/dev/sdb to the LVM (if needed).
Once you have your date moved elsewhere :
Confirm you want to wipe the filesystem on
Add /dev/sdb to the existing VG
vgextend vg55 /dev/sdb
Then you can allocate that space to the lv you want with
lvextend -L68G /dev/vg55/data