I have 3 nodes 'master master' cluster and using PXC 5.6
But I am only using a single node for both read and write.
Before using pxc, i was using standalone Mariadb 5.5 and I was taking backup using xtrabackup.
My question is, how should I take backup of PXC? Should i take full and incremental backup for the node which is NOT used for read and write without any additional precautions just like i was taking for mariadb 5.5?
For e.g: xtrabackup --backup --target-dir=/data/backup
Is there any officially recommended way to safely take backups of pxc?
I want to take backup so that if there is database corruption, I can start my cluster from scratch using that backup.