
Chapter 3. Technical description of the hardware architecture 61
Figure 3-6 IBM BladeCenter JS23 and JS43 Express BCH and BCHT SAS Topology
3.9 PowerVM
The PowerVM platform is the family of technologies, capabilities, and offerings
that provide virtualization capabilities on the IBM BladeCenter JS23 and JS43
Express systems. PowerVM is the new umbrella branding term for Power
Systems Virtualization (Logical Partitioning, Micro-Partitioning™, Hypervisor,
Virtual I/O Server, Advanced Power Virtualization, Live Partition Mobility,
Workload Partitions, and so on).
As with Advanced Power Virtualization in the past, PowerVM is a combination of
hardware enablement and value-added software. Table 3-3 on page 62 shows
the licensed features of each of the two different editions of PowerVM for IBM
BladeCenter JS23 and JS43 Express.
PowerVM standard edition offers a Web-based interface for managing
virtualization within a single blade. The Integrated Virtualization Manager (IVM)
component of Virtual I/O server (VIOS) provides the setup of management
capabilities of logical partitions (LPARs). It manages Virtual I/O and Virtual
Ethernet so that storage and communications adapters can be shared among all
the LPARs running on the IBM BladeCenter JS23 and JS43 Express.
Upgrade from PowerVM Standard Edition to Enterprise Edition is possible and
completely undisruptive. The upgrade does not even require the installation of
additional software. Just enter a valid activation key code in the hypervisor to
unlock the next level of functions.
Blade 1 SAS CtrlBlade 1 SAS Ctrl
Blade 2 SAS CtrlBlade 2 SAS Ctrl
Blade ... SAS CtrlBlade ... SAS Ctrl
Blade 10 SAS Ctrl
Blade 11 SAS Ctrl
Blade 12 SAS Ctrl
BAY 3
NSSM
SAS Switch
BAY 3
NSSM
SAS Switch
BAY 3
NSSM
SAS Switch
BAY 4
NSSM
SAS Switch
BAY 4
NSSM
SAS Switch
BAY 4
NSSM
SAS Switch
DS3200DS3200
SAS TapeSAS Tape
EXP3000EXP3000DS3200DS3200
External
SAS Ports
External
SAS Ports
External
SAS Ports
x4
x4
x4
x4
x4
x4
x4
x4
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