Raid health check

[ldrrp]

Problem

Currently there are no checks for raid health. This is a problem if we want to ensure data is not lost.

Solution

On a cron check for the health of the raids and if any are unhealthy we should notify the user and log the issue.

• We must scan for all mdadm drives.
• We should add those drives to a list of raids to configure in config.yml.
• Include config.yml settings disk checks with a custom golang struct.
• We will need a new model for system commands.

Example:

 - raid:
    - uuid: AISDYIAYSIDYUA
      options:
        - notification:
            enabled: true
        - log: true
    - uuid: BISDASDSAJFYUA
      options:
        - notification:
            enabled: true
        - log: true

Notify may be "true", "false" or "email" etc. Parsed as string. True will use server default.

Additionally we should allow the user to call the raid check directly.

Steps to Reproduce the Problem

1. ./server.bin -system raid-check