Chapter 3. Virtualization 81
Figure 3-1 Connectivity between virtual Fibre Channels adapters and external SAN devices
Virtual Serial Adapters (TTY) console
Virtual serial adapters provide a point-to-point connection from one logical partition to
another, or from the Hardware Management Console (HMC) to each logical partition on the
managed system. Virtual serial adapters are used primarily to establish terminal or console
connections to logical partitions.
Each partition needs to have access to a system console. Tasks such as operating system
installation, network setup, and certain problem analysis activities require a dedicated system
console. The POWER Hypervisor provides the virtual console using a virtual TTY or serial
adapter and a set of Hypervisor calls to operate on them. Virtual TTY does not require the
purchase of any additional features or software such as the PowerVM Edition features.
The operating system console can be provided by the IVM virtual TTY, using the SOL feature.
VIRTUAL I/O SERVER
Client Logical
Partition 2
Physical
Disk 1
Physical Fibre
Channel Adapter
Server Virtual Fiber
Channel Adapter
Server Virtual Fiber
Channel Adapter
Physical
Disk 2
Client Virtual
Fiber Channel
Adapter
Client Logical
Partition 1
Client Virtual
Fiber Channel
Adapter
HYPERVISOR
STORAGE AREA NETWORK
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