In our team, we are mostly doing different researches in OpenStack area, so we use bare-metal machines very extensively. To make our lives somewhat easier we've developed set of simple scripts that allow us to backup and restore current state of the file system on the server, it also allows to switch between different backups very easily.

This is how we manage disk partitions and how we use software raid on our machines:

------------Mandatory values:-----------

USER_ID - user name

JOB_MODE - possible options:

- upgrade  - upgrade standard image to up to date state

- backup  - create backup of file system for the defined user

- list - get list of backups for the defined user

- restore  - restore from the backup

- standard - restore file system to standard file system

- deploy - deploy stack from scratch according to provided info  

Block_Dev_Prov - Which block device provider should be used.

Possible options:

 - lvm2

 - ceph

STACK_USERNAME - DevStack user name

STACK_GROUP - DevStack group

USER_FOLDER - Folder with user's data

MAPPER - Device mapper path

Mandatory Parameters for LVM:

- VG - LVM Volume group name

- LV_ROOT_STANDARD - LVM Logical standard volume name

- LV_ROOT_FIRST - LVM Logical first root volume name

- LV_ROOT_SECOND - LVM Logical second root volume name

- LV_OPT - LVM Logical opt volume name

- LV_PARTITIONS_LIST - LVM Logical partitions list (root_standard root_one root_two opt_vol)

#-------------Optional values:------------

GIT_LINK - link to relavant stack repository

IF_DEPLOYMENT_FAIL_JOB - which job should be started if deployment fail

BACKUP_ID - which backup ID should be used for recovering. If not defined will be used latest

#----------------End----------------------