6.0.1

Delete Hardware Acceleration Claim Rules
Use the esxcli command to delete existing hardware acceleration claim rules.
In the procedure, --server=server_name species the target server. The specied target server prompts you
for a user name and password. Other connection options, such as a conguration le or session le, are
supported. For a list of connection options, see Geing Started with vSphere Command-Line Interfaces.
Prerequisites
Install vCLI or deploy the vSphere Management Assistant (vMA) virtual machine. See Geing Started with
vSphere Command-Line Interfaces. For troubleshooting, run esxcli commands in the ESXi Shell.
Procedure
u
Run the following commands:
esxcli --server=server_name storage core claimrule remove -r claimrule_ID --claimrule-
class=Filter
esxcli --server=server_name storage core claimrule remove -r claimrule_ID --claimrule-
class=VAAI
Hardware Acceleration on NAS Devices
Hardware acceleration allows ESXi hosts to integrate with NAS devices and use several hardware
operations that NAS storage provides. Hardware acceleration uses VMware vSphere Storage APIs for Array
Integration (VAAI) to enable communication between the hosts and storage devices.
The APIs dene a set of storage primitives that enable the host to ooad certain storage operations to the
array. The following list shows the supported NAS operations:
n
Full File Clone. Enables NAS device to clone virtual disk les. This operation is similar to the VMFS
block cloning, except that NAS devices clone entire les instead of le segments.
n
Reserve Space. Enables storage arrays to allocate space for a virtual disk le in thick format.
Typically, when you create a virtual disk on an NFS datastore, the NAS server determines the allocation
policy. The default allocation policy on most NAS servers is thin and does not guarantee backing
storage to the le. However, the reserve space operation can instruct the NAS device to use vendor-
specic mechanisms to reserve space for a virtual disk. As a result, you can create thick virtual disks on
the NFS datastore.
n
Native Snapshot Support. Allows creation of virtual machine snapshots to be ooaded to the array.
n
Extended Statistics. Enables visibility to space usage on NAS devices and is useful for Thin
Provisioning.
With NAS storage devices, the hardware acceleration integration is implemented through vendor-specic
NAS plug-ins. These plug-ins are typically created by vendors and are distributed as VIB packages through
a web page. No claim rules are required for the NAS plug-ins to function.
There are several tools available for installing and upgrading VIB packages. They include the esxcli
commands and vSphere Update Manager. For more information, see the vSphere Upgrade and Installing and
Administering VMware vSphere Update Manager documentation.
Install NAS Plug-In
Install vendor-distributed hardware acceleration NAS plug-ins on your host.
This topic provides an example for a VIB package installation using the esxcli command. For more details,
see the vSphere Upgrade documentation.
Chapter 23 Storage Hardware Acceleration
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