3/6/2023 0 Comments Vsphere aliasmanager![]() To match alias configuration across homogeneous hosts, you can use host profiles. One ESXi host might assign the hardware-based alias to uplink-1, and another ESXi host might assign the hardware-based alias to uplink-2. Timing changes in the order of registration of the uplinks might result in differences in how the ESXi hosts assign aliases to the uplinks. For example, a NIC driver registers two uplinks, uplink-1 and uplink-2, for two ports of the same PCI device, where one of the ports is not hardware enumerable by the system. However, even on a cluster that is considered homogenous, small differences in hardware or firmware might result in differences in the alias configuration between hosts.ĭifferences in the processing order during driver binding can also result in differences in alias configuration. Initial alias configuration is the same across a cluster of identical systems. If you add the same devices back to the system later, the I/O adapters of the device might not receive their previous aliases.ĭevice Alias Configuration in ESXi Clusters Note: If you remove a device from the system, the alias configuration of the I/O adapters of the device is removed. The ESXi host cannot assign aliases to absent devices or devices without supported drivers. The ESXi host assigns aliases first to on-board devices and then to add-in cards based on slot order. The ESXi host assigns aliases to I/O adapters in an order which is based on the underlying hardware enumeration order. ![]() Device alias assignment occurs during a stateless ESXi boot or a fresh installation of stateful ESXi. A stateful ESXi deployment model is one where the ESXi host is installed on local hard disks. Device Alias AssignmentĪ stateless ESXi deployment model is one where the ESXi host is not installed on hard disks, and is typically booted by using PXE. Therefore, in the ESXi native driver model, aliases formally refer only to I/O adapters, and not to physical devices such as a PCI NIC or a PCI HBA. Software iSCSI is a storage adapter using the network stack at the IP layer. For example, an FCoE device is a storage I/O adapter that uses NIC hardware. The I/O adapters can be of a different type from the underlying physical device. SCSI adapter objects in the storage subsystem and graphics device objects also have aliases.Ī hardware device can be presented as multiple I/O adapters in the I/O subsystem. For example, network uplinks have aliases such as vmnic0, vmnic1, and so on. Device aliases, also called device names, are short names associated with I/O adapters in an I/O subsystem.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |