6.7

Table Of Contents
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When a new host joins the cluster that has I/O filters, the filters installed on the cluster are deployed
on the host. vCenter Server registers the I/O filter storage provider for the host. Any cluster changes
become visible in the VM Storage Policies interface of the vSphere Client.
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When you move a host out of a cluster or remove it from vCenter Server, the I/O filters are uninstalled
from the host. vCenter Server unregisters the I/O filter storage provider.
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If you use a stateless ESXi host, it might lose its I/O filter VIBs during a reboot. vCenter Server
checks the bundles installed on the host after it reboots, and pushes the I/O filter VIBs to the host if
necessary.
Uninstall I/O Filters from a Cluster
You can uninstall I/O filters deployed in an ESXi host cluster.
Prerequisites
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Required privileges: Host.Config.Patch.
Procedure
1 Uninstall the I/O filter by running the installer that your vendor provides.
During uninstallation, vSphere ESX Agent Manager automatically places the hosts into maintenance
mode.
If the uninstallation is successful, the filter and any related components are removed from the hosts.
2 Verify that the I/O filter components are properly uninstalled from your ESXi hosts:
esxcli software vib list
The uninstalled filter no longer appears on the list.
Upgrade I/O Filters in a Cluster
Use installers provided by I/O filter vendors to upgrade I/O filters deployed in an ESXi host cluster.
An upgrade consists of uninstalling the old filter components and replacing them with the new filter
components. To determine whether an installation is an upgrade, vCenter Server checks the names and
versions of existing filters. If the existing filter names match the names of the new filters but have different
versions, the installation is considered an upgrade.
Prerequisites
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Required privileges:Host.Config.Patch.
vSphere Storage
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