MySQL : EBS snapshots for backing up a logical volume manager

It is possible to use EBS snapshots to backup a MySQL databases when the data is stored on a logical volume manager.   You have to be make sure all active/cached data is written to disk and no write happens to the data files during the snapshots.

Snapshotting a stripped volume:

Flush data to disk, lock tables, and freeze disk writes:
1. mysql -u root -p password 

(at the MYSQL prompt) 

A. FLUSH TABLES WITH READ LOCK;

B. SHOW MASTER STATUS; 

C. SYSTEM sudo xfs_freeze -f /data

Snapshot all EBS volumes that are part of the logical volume manager:

2. At the Linux prompt:

A. aws ec2 create-snapshot --volume-id vol-xxxxxxxx --description "Snapshot of /dev/sdf" 

B. aws ec2 create-snapshot --volume-id vol-xxxxxxxx --description "Snapshot of /dev/sdg"

Unfreeze disk writes and unlock tables
3. mysql -u root -ppassw-lab awslab

(at the MYSQL prompt) 

A. SYSTEM sudo xfs_freeze -u /data 

B. UNLOCK TABLES;