We have already seen a little of volume management using LVM when we looked at iSCSI in Chapter 4, Implementing iSCSI SANs, and it's not exactly simple.
The following commands are used in order to manage the disk volumes in the old, traditional way:
# pvcreate /dev/sde1 # vgextend vg1 /dev/sde1 # lvextend -L+1000M /dev/vg1/data_lv # resize2fs /dev/vg1/data
To start with, we will return the volume back to its original size before we add the second disk. Using the
max option, we will ensure that the
btrfs filesystem uses the maximum space available on the single disk we have in place so far:
# btrfs filesystem resize max /data/simple
In LVM and traditional ...