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How to Cleanly Uninstall the Nimble Connection Manager Before an ESXi Upgrade

If you’re using HPE Nimble storage arrays to back your VMware environment, there’s something that you should know. Lets start from the top.¬†As of this writing, the Nimble Connection Manager (NCM) for ESXi comes in three¬†different flavors. There’s a version available for use with ESXi 5.X, one available for use with ESXi 6.0, and one available for use with ESXi 6.5. Add the appropriate download source to VMware Update Manager (VUM), then create and attach a baseline for Nimble Connection Manager to your hosts. Doing so will ensure that Nimble Connection Manager is installed or updated during your normal VMware Update Manager update cycle which will keep Nimble Connection Manager updated across your infrastructure. For those that need them, here are the source URLs:

Nimble Connection Manager Download Sources for VMware Update Manager
ESX VersionDownload Source
ESXi 5.xhttps://update.nimblestorage.com/esx5/ncm/index.xml
ESXi 6.0https://update.nimblestorage.com/esx6/ncm/index.xml
ESXi 6.5https://update.nimblestorage.com/esx6.5/ncm/index.xml

I recently upgraded my entire VMware environment from vSphere 5.5 to 6.5. Because I had Nimble Connection Manager installed on the hosts, and the version installed was compatible with ESXi 5.X, I had to do a few things before I could upgrade the hosts. If you leave the older version of Nimble

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