Backing up a single node Percona XtraDB Cluster I have a single node percona XtraDB Cluster.

Version:
Server version: 5.6.15-56 Percona XtraDB Cluster (GPL), Release 25.5, Revision 759, wsrep_25.5.r4061

All tables in the DB are using InnoDB engine and the database is partitioned.

The server is a RHEL 6 server and I want to upgrade it to RHEL 7. What I am planning to do is, stop mysql on the old server, shut it down, disconnect the disk (old and new servers are VMs), connect it to the new RHEL 7 server, turn the new server on, mount the disk, change mysql configuration so that it will point to the new filesystem. Sounds good on paper but will this actually work?
Well, I've tested this and the answer is yes. One small thing to keep in mind is that in RHEL 6 default filesystem is EXT4 while in RHEL 7 it is XFS and you will be mounting an EXT4 filesystem to a RHEL7 machine.