Thin pool requirement 2018.05 Hybrid Cloud Management 2018.05 Ultimate

  • KM03207990
  • 23-Jul-2018
  • 23-Jul-2018

This document has not been formally reviewed for accuracy and is provided "as is" for your convenience.

Summary

Thin pool requirement 2018.05 Hybrid Cloud Management 2018.05 Ultimate

Question

Determine if it is an absolute that we need LVM thin pools to be created for our 2018.05 upgrade by Microfocus Professional Services.
If it is a requirement we need exact sizing specifications that we need to provide for the thin pool.
We need to know risk / benefit of creating thin pool vs. going forward without it for our 2018.05 upgrade installation.
 

Answer

Clarification from R&D regarding the thin_pool_autoextend settings.
Even though the documentation says the step is optional, R&D says it is mandatory.
The documented values (80% and 20%) are required for all known configurations. When the lvm gets to be 80% of total storage an auto extend will get triggered and will increase the lvm by 20%.
This should result in faster Docker performance.”
R&D provided the solution