Cisco UCS Virtual Interface Card (VIC) drivers facilitate communication between supported operating systems and Cisco UCS Virtual Interface Cards (VICs).
Cisco UCS VIC driver ISO bundles include an eNIC driver and an fNIC driver. The eNIC is the driver for the Cisco UCS VIC Ethernet NIC. The fNIC is the driver for the Cisco UCS VIC Fibre Channel over Ethernet HBA.
fNIC is not supported in Cisco UCS Manager Release 2.5.
For Windows, the ISO bundle also includes the iSCSI Crash Dump
driver, which supports Windows crash dumps when the server is booted from the
Cisco VIC Ethernet interface using the Microsoft iSCSI initiator.
Cisco UCS Manager
Release 2.5, which introduces Cisco UCS M-Series servers, continues to provide
vNIC capabilities. Additionally, it provides for a new capability with its
virtualized shared local storage. This virtual storage controller provides
access to a virtual drive that is provided to the server through the shared
storage controller and hard drives in the chassis. The virtual storage
controller introduces a new PCIe device known as a SCSI NIC (sNIC), which is
presented to the OS. The OS views these items as locally-attached SCSI devices.
The sNIC provides the pathway for
SCSI commands from the server to the virtual drive. This controller is a new
device to the OS and uses an sNIC driver that is loaded into the OS. Because
the sNIC is a new PCIe device, the sNIC driver may not be part of some OS
distributions. When that is the case, the sNIC driver must be loaded at the
time of OS installation to see the storage device on the server. The sNIC
driver, like the eNIC and fNIC drivers, is certified by the OS vendor and
eventually included as part of the core OS install package. When the driver is
present, the virtual drive is visible to the OS, and is presented as a standard
hard drive connected through a RAID controller.