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Chapter 3. Basic operation 45
Suspend and resume Virtual Servers
You can suspend Virtual Servers to store its state on a
Storage Area Network (SAN). You can re-assign all
processors and memory of a suspended partition to other
partitions as needed. You can resume a suspended
partition to bring it back to the started state. This feature is
useful for performance management and energy
management of servers.
Active Memory Sharing (AMS)
You can create a common pool of physical memory,
which can be assigned to multiple Virtual Servers in a
shared mode. AMS helps in increasing the memory
utilization on the server.
Manage reserved storage device pool
Reserved storage device pool is an AMS pool of size
zero. It is used to support a pool of storage devices on
PowerVM Standard Edition for Virtual Server suspend
and resume operations. This is available only if the server
is capable of suspending and resuming.
Manage shared processor pools
Shared processors are physical processors whose
processing capacity is shared among multiple Virtual
Servers. You can assign a specific amount of processing
capacity in a shared processor pool to each Virtual Server
that uses shared processors.
Manage virtual networks
You can create and manage virtual switches (VSwitch)
and virtual local area (VLAN) networks using this task.
Manage virtual storage
You can create and manage the virtual disks, storage
pools, physical volumes, and optical devices in your
server using this task.
3.1.3 Power Unit management
Here are some of the Power Unit management tasks that you can perform using
the SDMC:
Initialize Power Unit Use this task to initialize a Power Unit. When you initialize
a Power Unit, the I/O units and the servers contained
within the Power Unit are powered on.