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58 IBM System p5 520 and 520Q Technical Overview and Introduction
management solution that inherits some HMC features, thus avoiding the necessity of a
dedicated control workstation. This solution enables the administrator to reduce system setup
time. IVM is targeted at small and medium systems.
IVM supports up to the maximum 16-core configuration. The IVM provides a management
model for a single system. Although it does not provide the full flexibility of an HMC, it enables
the exploitation of the IBM Virtualization Engine™ technology. IVM is an enhancement of the
Virtual I/O Server, offered as part of Virtual I/O Server Version 1.2 and follow-on versions,
which is the product that enables I/O virtualization in POWER5 and POWER5+ systems. It
provides the same Virtual I/O Server features plus a Web-based graphical user interface that
enables the administrator to remotely manage the System p5 server with an Internet browser.
You can use IVM to:
Create and manage logical partitions.
Configure the virtual Ethernet networks.
Manage storage in the Virtual I/O Server.
Create and manage user accounts.
Create and manage serviceable events through Service Focal Point.
Download and install updates to device microcode and to Virtual I/O Server software.
Back up and restore logical partition configuration information.
View application logs and the device inventory.
The requirements for an IVM-managed server are as follows:
A server managed by IVM cannot be simultaneously managed by an HMC.
IVM (with Virtual I/O Server) must be installed as the first operating system.
An IVM partition requires a minimum of one virtual processor and 512 MB of RAM.
Virtual I/O Server version 1.3 introduced enhancements to IVM. The Integrated Virtualization
Manager (IVM) adds an industry leading function in this release: support for Dynamic Logical
Partitioning (DLPAR) for memory and processors in managed partitions. Additionally, a
number of usability enhancements include support through the browser-based interface for IP
configuration of the Virtual I/O Server:
DLPAR Support for memory and processors in managed partitions
GUI Support for System Plan management, including the Logical Partition (LPAR)
Deployment Wizard
Web UI Support for:
– IP configuration support
– Task Manager for long-running tasks
– Various usability enhancements, including the ability to create a new partition based on
an existing one
The major considerations of IVM in comparison to an HMC-managed system are as follows:
All physical adapters are owned by IVM, and LPARs use virtual devices.
There is only one profile per partition.
A maximum of four virtual Ethernet networks are available inside the system.
Each LPAR can have a maximum of one Virtual SCSI adapter assigned.
IVM supports a single Virtual I/O Server to support all of your mission critical production
needs.
Service Agent (see 3.2.3, “Service Agent” on page 85) for reporting Hardware errors to
IBM is not available on IVM.