6.7

Table Of Contents
A storage provider, also called a VASA provider, is automatically registered for every ESXi host in the
cluster. Successful auto-registration of the I/O filter storage providers triggers an event at the host
level. If the storage providers fail to auto-register, the system raises alarms on the hosts.
View I/O Filters and Storage Providers
You can review I/O filters available in your environment and verify that the I/O filter providers appear as
expected and are active.
When you install a third-party I/O filter, a storage provider, also called VASA provider, is automatically
registered for every ESXi host in the cluster. Successful auto-registration of the I/O filter storage providers
triggers an event at the host level. If the storage providers fail to auto-register, the system raises alarms
on the hosts.
Procedure
1 Verify that the I/O filter storage providers appear as expected and are active.
a Navigate to vCenter Server.
b Click the Configure tab, and click Storage Providers.
c Review the storage providers for I/O filters.
When the I/O filter providers are properly registered, capabilities and data services that the filters offer
populate the VM Storage Policies interface.
2 Verify that the I/O filter components are listed on your cluster and ESXi hosts.
Option Actions
View I/O filters on a cluster a Navigate to the cluster.
b Click the Configure tab.
c Under Configuarion, click I/O Filters to review the filters installed in the
cluster.
View I/O filters on a host a Navigate to the host.
b Click the Configure tab.
c Under Storage, click I/O Filters to review the filters installed on the host.
Configure Virtual Flash Resource for Caching I/O Filters
If your caching I/O filter uses local flash devices, configure a virtual flash resource, also known as VFFS
volume. You configure the resource on your ESXi host before activating the filter.
Note This task is available only in the vSphere Web Client.
Prerequisites
To determine whether the virtual flash resource must be enabled, check with your I/O filter vendor.
vSphere Storage
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