Anvil! Tutorial 2 - Growing Storage: Difference between revisions

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= Task Ahead =
= Task Ahead =
{{warning|1='''''THIS IS AN ADVANCED PROCEDURE!'''''<br />This process will require manipulating storage at a very low level. It will also degrade your ''Anvil!'' for long periods of time. Please practice on a non-production test ''Anvil!'' before attempting in production.<br />When you do move to production, be sure you have good backups and please schedule a maintenance window, ideally, or at least a low-period as a minimum.}}


This tutorial will cover:
This tutorial will cover:

Revision as of 23:46, 3 August 2014

 AN!Wiki :: Anvil! Tutorial 2 - Growing Storage

One common task an administrator will face as their Anvil! moves down it's usable life is running out of resources. Adding RAM to an Anvil! is pretty trivial, but what about adding storage space?

One option is to simply add new drives, create a new array, build a new DRBD resource and set it up as a new clustered LVM PV. However, this approach is not very efficient and, for many people, not possible due to lack of sufficient empty drive bays.

Task Ahead

 Warning: THIS IS AN ADVANCED PROCEDURE!
This process will require manipulating storage at a very low level. It will also degrade your Anvil! for long periods of time. Please practice on a non-production test Anvil! before attempting in production.
When you do move to production, be sure you have good backups and please schedule a maintenance window, ideally, or at least a low-period as a minimum.

This tutorial will cover:

  1. How to grow add a new hard drive to an existing RAID array (using MegaCli64).
  2. Rebuilding existing partitions on each node to use the new space.
  3. Resizing DRBD resources.
  4. Growing the clustered LVM physical volumes.

Assumptions

This tutorial is designed as an extension to the main "AN!Cluster Tutorial 2 tutorial. As such, this tutorial assumes a matching config. If your Anvil! differs, please adjust this tutorial to match your install.

Growing The Physical RAID Array


 

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