Amazon elasticsearch interpretation of FreeStorageSpace metrics
<p>I have 6 instances of type m3.large.elasticsearch and storage type instance.</p>

<p><a href="https://i.stack.imgur.com/7Y3oK.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/7Y3oK.png" alt="enter image description here"></a></p>

<p>I don't really get what does Average, Minimum, Maximum ..mean here?</p>

<p>I am not getting any logs into my cluster right now although it shows FreeStorageSpace as 14.95GB here:</p>

<p><a href="https://i.stack.imgur.com/XCPUj.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/XCPUj.png" alt="enter image description here"></a></p>

<p>But my FreeStorageSpace graph for "Minimum" has reached zero!</p>

<p><a href="https://i.stack.imgur.com/UJtNo.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/UJtNo.png" alt="enter image description here"></a></p>

<p>What is happening here?</p>