Lpar Manager Overview - Hitachi Compute Blade 500 Series User Manual

LPAR manager Overview

LPAR manager logically partitions the physical resources of one server blade
to create multiple server environments, each of which can operate
independently.
Each of the server environments constructed in this way from partitioned
physical resources is called an LPAR (Logical PARtition). It is possible to run a
different operating system on each LPAR simultaneously.
The operating system on an LPAR is called a guest OS. Each LPAR operates as
a completely independent and isolated server environment, and the guest OS
running on an LPAR is not affected by other LPARs.
The mode in which a server blade is logically partitioned to allow the
operation of multiple LPARs is called the LP mode. The conventional mode of
operating a server blade without partitioning is called the Basic mode.
Unless explicitly specified, the terms "physical" and "logical" are used in this
chapter as defined in the table below.
Term
Physical
Logical
An image when the system is booted in the LP mode is as follows:
In addition, in this chapter:
• Symbols embraced by square brackets [ ] indicate keys on the keyboard.
• If two keys are joined by a "+", such as "[A] + [B]", it means the two
keys are to be pressed together
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Hitachi Compute Blade 500 Series Logical partitioning manager User's Guide
Table 1-1 Physical and Logical resources
Indicates the resources that actually exist in the system. "Physical" is
sometimes omitted, except where this would cause confusion.
Indicates the logical resources that exist on an LPAR or for software on
LPARs. Thus, there may or may not exist an actual resource for each logical
resource.
Figure 1-1 System Activation in the LP mode
LPAR manager Functions
Description