January 2018
Intermediate to advanced
574 pages
14h 44m
English
Content preview from VMware vSphere 6.5 Cookbook - Third Edition
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How it works...
Virtual machine monitoring uses VMware Tools to send heartbeats to the host its running on. If a heartbeat is not received within the configured threshold, then the VM is deemed as unresponsive/hung and then subsequently restarted. The threshold/sensitivity for heartbeating is configurable:
- High: Checks for a heartbeat every 30 seconds and reset every 1 hour
- Medium: Checks for a heartbeat every 60 seconds and reset every 24 hour
- Low: Checks for a heartbeat every 120 seconds and reset every 7 days
In order to avoid repetitive restarts and false positives, for any level of sensitivity three resets can be initiated per VM in a given reset period. Another key aspect is while heartbeats are not received, the network and storage ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.