If you are netapp existing customers, you can download the software from here

Below is the summary I link from Netapp official blog site

Summary of supported functionality in the 1.0 release includes:

• Support for ESX 4.0 and ESXi 4.0 hosts.
• Limited support for ESX 3.5 and ESXi 3.5 hosts (listed and details provided, but setting not set – requires using EHU for host settings)
• Viewing the status of storage controllers from a SAN (FC, iSCSI) perspective.
• Viewing the status of storage controllers from a NAS (NFS) perspective.
• Viewing the status of ESX hosts, including ESX version and overall status.
• Checking at a glance whether the following are configured correctly, and if not, automatically setting the correct values without needing to access the ESX console. You can select multiple ESX hosts and update settings for all hosts with a single command.
• Storage adapter timeouts
• Multipathing settings
• NFS settings
• Collecting diagnostic information from the ESX hosts, storage controllers, and Fibre Channel switches.
• Tools to identify and correct misaligned disk partitions (MBR Tools)
• Tools to set proper guest operating system disk timeout values

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