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Virtualization, Cloud, Infrastructure and all that stuff in-between

My ramblings on the stuff that holds it all together

VMware AppSpeed Probes and more 2% Maintenance Mode Problems

 

Following on from my last post on problems entering maintenance mode with FT-enabled VMs, I seem to have found another one – if you have the rather excellent AppSpeed product deployed on an ESX cluster and you want to put a host into maintenance mode it gets stuck at 2% as it can’t move the AppSpeed probe VM onto an alternative host

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If you try to manually vMotion the problematic probe off to another host in the cluster you get the following error

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If you shutdown or suspend the AppSpeed probe VM then the switch to maintenance mode continues as expected.

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This would make sense as it plugs directly into a dedicated vSwitch on that host to monitor network traffic so vMotioning it off wouldn’t be of any use – assuming the other nodes in the cluster are also running AppSpeed probes.

However it would be great if there was a more automated way to handle this? guess it’s tricky as on one hand its great that AppSpeed doesn’t rely on any ESX-host agents and is essentially self-contained with probes running as VM appliances but on the other hand the probe doesn’t know the guest is being put into maintenance mode so should be shut down/suspended rather than vMotioned to an alternative host.

There is integration with the vCenter server via a plug-in so maybe in future versions that could trap a maintenance mode event and initiate (or suggest) shutting down the AppSpeed probes.

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3 responses to “VMware AppSpeed Probes and more 2% Maintenance Mode Problems

  1. Eitan October 15, 2009 at 7:52 am

    Note that AppSpeed will support Maintenance mode in version 1.0.1 (planned to be released in mid December). Probes will be automatically powered off, when entering “Maintenance mode” on hosts with a Probes installed.

    • vinf October 15, 2009 at 9:03 am

      Great – thanks for posting

  2. Virgil October 15, 2009 at 11:05 am

    This is not the only probe type appliance that needs to trap a maintenance mode event….

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