2.4 - Virtualization and Network Storage Flashcards
What is a vNIC?
Virtual Network Interface Card. The network connection for each host. Connects to the vSwitch, which connects to the vLAN, vRouter, or Physical LAN.
What is a virtual router?
A vRouter is a fully functional software router. Most likely connected to a physical LAN.
What is a virtual firewall?
A software version of a firewall that can be placed strategically through your vLAN.
What is a hypervisor?
AKA VMM (Virtual Machine Manager) is the software component that contains and controls all the virtual machines and devices on a host. Requires hardware virtualization.
What is a NAS?
Network Attached Storage. Storage attached directly to the network, and uses file-level storage (any changes make a new file).
What is a SAN?
Storage Area Network. Like NAS, but uses multiple identical storage devices and is FAST. Uses block-level storage, so changes can be saved. More fault tolerant and more efficient.
What is an FC connector?
Fibre Channel. Runs separately from ethernet using a network architecture that emphasizes storage. Uses fiber-optic connections and specialized Fiber-channel hardware. A standard NIC is used to connect to the LAN.
What is FCoE?
Fibre Channel over ethernet. Encapsulated the FC data in an ethernet frame. Cheaper than pure FC. Uses CNA (Converged Network Adapters) to support the connections.
What is iSCSI?
Internet SCSI (pronounced SKHAZI). Operates on traditional ethernet connectors using software called an iSCSI initiator. Can be configured for jumbo frames.
What is Infiniband?
Another network architecture that enables high-speed transmissions. Requires its own specialized network hardware.
What is a Jumbo frame?
An ethernet frame that supports an MTU of 9198 bytes over the standard 1500 bytes.
