vSphere Storage - ESXi 5.0 - Documentation - VMware
vSphere Storage - ESXi 5.0 - Documentation - VMware
vSphere Storage - ESXi 5.0 - Documentation - VMware
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<strong>vSphere</strong> <strong>Storage</strong><br />
Targets that are accessed through the network have unique names that are provided by the storage systems.<br />
The iSCSI targets use iSCSI names, while Fibre Channel targets use World Wide Names (WWNs).<br />
NOTE <strong>ESXi</strong> does not support accessing the same LUN through different transport protocols, such as iSCSI and<br />
Fibre Channel.<br />
A device, or LUN, is identified by its UUID name. If a LUN is shared by multiple hosts, it must be presented<br />
to all host with the same UUID.<br />
Viewing <strong>Storage</strong> Devices<br />
You can display all storage devices or LUNs available to the host, including all local and networked devices.<br />
If you use third-party multipathing plug-ins, the storage devices available through the plug-ins also appear<br />
on the list.<br />
For each storage adapter, you can display a separate list of storage devices available for this adapter.<br />
Generally, when you review storage devices, you see the following information.<br />
Table 1-2. <strong>Storage</strong> Device Information<br />
<strong>Storage</strong> Device Information Description<br />
Name Also called Display Name. It is a name that the <strong>ESXi</strong> host assigns to the device based on<br />
the storage type and manufacturer. You can change this name to a name of your choice.<br />
Identifier A universally unique identifier that is intrinsic to the device.<br />
Runtime Name The name of the first path to the device.<br />
Operational State Indicates whether the device is mounted or unmounted. For details, see “Detach <strong>Storage</strong><br />
Devices,” on page 128.<br />
LUN Logical Unit Number (LUN) within the SCSI target.<br />
Type Type of device, for example, disk or CD-ROM.<br />
Drive Type Information about whether the device is a solid-state drive (SSD) or a regular non-SSD<br />
hard drive. For details, see Chapter 15, “Solid State Disks Enablement,” on page 141.<br />
Transport Transportation protocol your host uses to access the device.<br />
Capacity Total capacity of the storage device.<br />
Owner The plug-in, such as the NMP or a third-party plug-in, that the host uses to manage paths<br />
to the storage device. For details, see “Managing Multiple Paths,” on page 156.<br />
Hardware Acceleration Information about whether the storage device assists the host with virtual machine<br />
management operations. The status can be Supported, Not Supported, or Unknown. For<br />
details, see Chapter 18, “<strong>Storage</strong> Hardware Acceleration,” on page 171.<br />
Location A path to the storage device in the /vmfs/devices/ directory.<br />
Partition Format A partition scheme used by the storage device. It could be of a master boot record (MBR)<br />
or GUID partition table (GPT) format. The GPT devices can support datastores greater<br />
than 2TB. For more information, see “VMFS Datastores and <strong>Storage</strong> Disk Formats,” on<br />
page 113.<br />
Partitions Primary and logical partitions, including a VMFS datastore, if configured.<br />
16 <strong>VMware</strong>, Inc.