I am running Red Hat 7.1 enterprise where I have a lvm volume for "/" with a xfs filesystem. With an ext2 file system I would use lvextend on the lvm volume then use e2fsck -f on the
lvm volume then resize2fs. What do you use with the xfs lvm volume? What do I use to replace e2fsck and resize2fs?

If you use the --resizefs parameter, then after the volume has been extended, it will extend the file system for you.
Same parameter on lvreduce works.

Fairly sure it will work for xfs.

Did you bother to search ?. "man xfs" will even get you started.

Enlarging xfs is pretty painless, similar to ext, but should you ever need to reduce its allocation, you're in for some extra pain.

I am finding information on commands but little information on the process. Found xfs_growfs and this worked after I preformed a lvextend. Obvious now but a documented process would help. If anyone can provide a link I would appreciate it very much. Some things I still find that are not clear to me about this process. With an ext type LVM volume I would execute lvextend, e2fsck -f and then resize2fs against the lvm volume. Is there something else that needs to be executed or does the xfs_growfs do both of the later executed commands; (e2fsck & resize2fs)? Is there a way to check the xfs filesystem while mounted. xfs_check is not a command on Red Hat 7.1 enterprise and xfs_repair -n will not work on a mounted filesystem. I tried xfs_info and it is unclear to me if it will report and flag errors.

An overall introduction to LVM can be found in an excellent magazine (Full Circle) - see back issue 80, choose your preferred language at
http://fullcirclemagazine.org/issue-80/
The part relevant to LVM is on pages 12 - 18.

RHEL has excellent doco - go there and download the LVM Admin Guide and the Storage Admin Guide. The latter covers xfs expanding and checking.
I only rarely use xfs - has too many limitations in setups that aren't massively scaled.

The xfs_repair states that the lvm volume is required to be unmounted to be repaired. I was disappointed when xfs_repair -n would not check a mounted lvm volume. Unfortunately I have not found any utility that would check a mounted xfs lvm volume.
I appreciate all the pointers to understanding LVM and file systems. Lot of good information and I may have missed something. I would appreciate a confirmation to confirm that checking can not be performed on a mounted xfs lvm volume or proven wrong that a xfs lvm volume can be check on a xfs lvm volume. Thank everyone.

I think it would be accurate to say that you cannot check or repair any kind of LVM mounted volume - for any filesystem.
For info you could run

Just signed on to confirm that you CAN resize an XFS Logical Volume while it is mounted. Just like you could before on ext2/3/4.

The command is "xfs_growfs /dev/volume_group_name/lv_name". Just tested and verified it on Cent OS 7.1