Module 7 Working with VMware vSphere
Raw Device Mapping
A file stored in a VMFS volume that acts as a proxy or go-between providing a physical storage device to virtual disk mapping.
vicfg-vmknic
Adds, deletes, and modifies virtual network adapters. -add | -a: Adds a VMkernel NIC to the system.
VM_name.nvram file
BIOS file.
vmxnet2 (Enhanced vmxnet)
Based on the vmxnet adapter. But the adapter provides high-performance features commonly used on modern networks, such as jumbo frames and hardware off-loads.
vicfg-user <options>
Creates, modifies, deletes, and lists local direct access users and groups of users. <options>: --addgroup | -g <group_list: Comma-separated list of groups to add user to --adduser | -u <user_list: Comma-separated list of users to add to specified group
VM_name-_vmdk file
Disk data file.
VM_name.vmdk file
Disk descriptor file.
NIC Teaming Policy
Enables you to determine how network traffic is distributed between adapters and how to reroute traffic in the event of an adapter failure. Includes load-balancing and failover settings.
Average Bandwidth (Traffic-Shaping Policy)
Establishes the number of kilobits per second to allow across a port, averaged over time. The average bandwidth is the allowed average load.
VMkernel ports
Include the management network port used to connect to remote consoles such as vSphere Client, as well as ports for network storage, vMotion migration, and fault tolerance.
VM_name.log file
Log files for VM.
Promiscuous Mode
Network adapter is able to capture all of the packets on the network, regardless of the destination MAC address of the frames carrying them (when set to Reject).
vmxnet3
Offers all the features available in vmxnet2 and adds several features, such as multiqueue support, IPv6 offloads, and MSI/MSI-X interrupt delivery.
Thin Provision
Only uses as much data store space as the disk initially needs. If the thin disk needs more space later, it can expand to the maximum capacity allocated to it.
VM_name.rdm.vmdk file
Raw Device Map (RDM) pointer file.
VM_name.vmsd file
Snapshot data file.
VM_name.vmss
Snapshot state file.
Thick Provision Lazy Zeroed
Space required for the virtual disk is allocated during creation. Data remaining on the physical device is not erased during creation, but zeroed out on demand at a later time on first write.
Thick Provision Eager Zeroed
Space required for the virtual disk is allocated during creation. Data remaining on the physical device is zeroed out when the disk is created.
vicfg-ipsec
Supports setup of IPSec. --add-sa <sa>: Adds a security association. The last parameter is always the name of association. --add-sp <sp>: Adds a security policy. The last argument is always the name of the security policy.
VM_name.vswp file
Swap files used to swap memory pages for the VM when it's running.
Peak Bandwidth (Traffic-Shaping Policy)
The max. number of kilobits per second to allow across a port when sending a burst of traffic. The top bandwidth used by port when it is in its burst bonus.
Burst Size (Traffic-Shaping Policy)
The max. number of kilobytes to allow in a burst. If parameter is set, a port might gain a burst bonus if it does not use all its allocated bandwidth.
Trunk port
Used by the physical switch to pass packets from multiple VLANs to the host using VLAN tags.
Uplink ports
Used to connect one or more physical network adapters to the virtual switch.
Virtual machine ports
Used to handle traffic between VMs and between VMs and the physical network. Virtual machine ports can be divided into port groups to separate traffic and provide more control options.
VM_name.vmx file
Virtual hardware config. info.
MAC Address Change
When set to Reject, if the guest attempts to change the MAC address assigned to the virtual NIC, it stops receiving frames (default is Accept).
Forged Transmits
When set to Reject, the virtual NIC drops frames that the guest sends, where the source address field contains a MAC address other than the assigned virtual NIC MAC address (default is Accept)
