vSphere Storage - ESXi 5.1 - Documentation - VMware
vSphere Storage - ESXi 5.1 - Documentation - VMware
vSphere Storage - ESXi 5.1 - Documentation - VMware
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
On your host, the hardware acceleration is enabled by default. If your storage does not support the hardware<br />
acceleration, you can disable it.<br />
In addition to hardware acceleration support, <strong>ESXi</strong> includes support for array thin provisioning. For<br />
information, see “Array Thin Provisioning and VMFS Datastores,” on page 230.<br />
Disable Hardware Acceleration for Block <strong>Storage</strong> Devices<br />
On your host, the hardware acceleration for block storage devices is enabled by default. You can use the<br />
<strong>vSphere</strong> Client advanced settings to disable the hardware acceleration operations.<br />
As with any advanced settings, before you disable the hardware acceleration, consult with the <strong>VMware</strong> support<br />
team.<br />
Procedure<br />
1 In the <strong>vSphere</strong> Client inventory panel, select the host.<br />
2 Click the Configuration tab, and click Advanced Settings under Software.<br />
3 Change the value for any of the options to 0 (disabled):<br />
n VMFS3.HardwareAcceleratedLocking<br />
n DataMover.HardwareAcceleratedMove<br />
n DataMover.HardwareAcceleratedInit<br />
Disable Hardware Acceleration for Block <strong>Storage</strong> Devices in the<br />
<strong>vSphere</strong> Web Client<br />
On your host, the hardware acceleration for block storage devices is enabled by default. You can use the<br />
<strong>vSphere</strong> Web Client advanced settings to disable the hardware acceleration operations.<br />
As with any advanced settings, before you disable the hardware acceleration, consult with the <strong>VMware</strong> support<br />
team.<br />
Procedure<br />
1 Browse to the host in the <strong>vSphere</strong> Web Client navigator.<br />
2 Click the Manage tab, and click Settings.<br />
3 Under System, click Advanced System Settings.<br />
4 Change the value for any of the options to 0 (disabled):<br />
n VMFS3.HardwareAcceleratedLocking<br />
n DataMover.HardwareAcceleratedMove<br />
n DataMover.HardwareAcceleratedInit<br />
Managing Hardware Acceleration on Block <strong>Storage</strong> Devices<br />
Chapter 21 <strong>Storage</strong> Hardware Acceleration<br />
To integrate with the block storage arrays and to benefit from the array hardware operations, <strong>vSphere</strong> uses<br />
the <strong>ESXi</strong> extensions referred to as <strong>Storage</strong> APIs - Array Integration, formerly called VAAI.<br />
In the <strong>vSphere</strong> 5.x release, these extensions are implemented as the T10 SCSI based commands. As a result,<br />
with the devices that support the T10 SCSI standard, your <strong>ESXi</strong> host can communicate directly and does not<br />
require the VAAI plug-ins.<br />
<strong>VMware</strong>, Inc. 217
Change language