Using XFS as filesystem
First, you need to install XFS system utilities, which allow you to perform various XFS related administration tasks (e.g., format, expand, repair, setting up quota, change parameters, etc).
sudo yum install xfsprogs
Now you are ready to mount the formatted partition. Let’s assume that /storage is a local mount point for XFS. Go ahead and mount the partition by running:
sudo mount -t xfs /dev/sdb1 /storage
Verify that XFS mount is succesful by running:
df -Th /storage
If you want the XFS partition to be mounted at /storage automatically upon boot, add the following line to /etc/fstab.
/dev/sdb1 /storage xfs defaults 0 0
To see the info of your block device, use xfs_info.
Once the volume group/logical volume has been extended (see this guide for increasing lvm), you can expand the partition using xfs_growfs.
Using just xfs_growfs, the filesystem will be increased to its maximum available size. If you want to only increase for a couple of blocks, use the -D option.