Hitachi CB 520H A1 User manual

Category
Software
Type
User manual
Hitachi Compute Blade 500 Series
Logical partitioning manager User's Guide
MK-91CB500068-27
Document Organization
Product Version
Getting Help
Contents
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Hitachi Compute Blade 500 Series Logical partitioning manager User's Guide
Contents
Preface ............................................................................................... ix
Intended Audience .................................................................................................. x
Product Version ...................................................................................................... x
Release Notes ........................................................................................................ x
Referenced Documents ........................................................................................... x
Document Organization .......................................................................................... xi
Document conventions .......................................................................................... xii
Convention for storage capacity values .................................................................. xiii
Getting help ......................................................................................................... xiii
Comments ........................................................................................................... xiii
1 LPAR manager Functions ................................................................... 1-1
LPAR manager Overview ...................................................................................... 1-2
Logical Partitioning .............................................................................................. 1-3
Logical Partitioning of Processors .......................................................................... 1-4
Scheduling mode dynamically change ............................................................. 1-5
Service Ratio ................................................................................................. 1-6
Idle Detection ............................................................................................... 1-7
Processor Capping ......................................................................................... 1-8
Processor Group ............................................................................................ 1-9
Hyper Threading ......................................................................................... 1-10
PRTE .......................................................................................................... 1-12
Logical Partitioning of Memory ............................................................................ 1-13
Guest NUMA ................................................................................................ 1-15
L3 cache allocation functionality ................................................................... 1-18
Logical Partitioning of PCI Devices ...................................................................... 1-19
NIC (Network Interface Card) ............................................................................. 1-22
Management Path ....................................................................................... 1-32
SR-IOV ....................................................................................................... 1-40
FCoE .......................................................................................................... 1-43
Port Multiple Assignment .............................................................................. 1-44
Port Separate Assignment ............................................................................ 1-44
TagVLAN ..................................................................................................... 1-45
Teaming ..................................................................................................... 1-54
Promiscuous Mode ....................................................................................... 1-55
Packet Filtering of Inter-LPAR ....................................................................... 1-60
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Hitachi Compute Blade 500 Series Logical partitioning manager User's Guide
FC (Fibre Channel) ............................................................................................. 1-60
HBA-core dedicated mode ............................................................................ 1-62
USB/KVM .......................................................................................................... 1-65
2 System Operation .............................................................................. 2-1
Web Console ....................................................................................................... 2-2
HCSM ................................................................................................................. 2-2
Server Management ............................................................................................. 2-2
SC/BSM ........................................................................................................ 2-2
SC/DPM ........................................................................................................ 2-2
HVM Navigator .................................................................................................... 2-3
LPAR Configuration ........................................................................................ 2-3
Monitoring .................................................................................................... 2-3
Viewer .......................................................................................................... 2-3
Migration ...................................................................................................... 2-3
Virtual COM Console ............................................................................................ 2-4
Logical VGA Snapshot ........................................................................................ 2-10
Time Adjustment ............................................................................................... 2-11
Power Saving .................................................................................................... 2-16
System Idle Loop ......................................................................................... 2-16
Power Capping Function ............................................................................... 2-16
Transfer ............................................................................................................ 2-17
Transfer to LPAR manager environment from Basic environment .................... 2-17
Transfer to Basic environment from LPAR manager environment .................... 2-18
IPv6 Setting for LP IP Addresses ......................................................................... 2-18
LP communication settings ................................................................................. 2-20
DNS .................................................................................................................. 2-20
Performance tuning options ................................................................................ 2-21
3 High Reliability Functions ................................................................... 3-1
Redundancy ........................................................................................................ 3-2
Redundancy of Power Supply ......................................................................... 3-2
Redundancy of Management Module .............................................................. 3-2
Redundancy of LAN switch / FC switch ............................................................ 3-3
RAID configuration and duplex controllers ....................................................... 3-3
N+M Cold Standby .............................................................................................. 3-3
Microsoft Cluster Service/Microsoft Failover Cluster ................................................ 3-7
UPS ....................................................................................................................  3-9
Role-Based Access Control .................................................................................. 3-11
User types .................................................................................................. 3-11
Role types ................................................................................................... 3-12
Assigning roles ............................................................................................ 3-12
Access permissions ...................................................................................... 3-13
Changing access permissions ........................................................................ 3-15
LPAR manager operations from the management module ............................... 3-15
Configuration example ................................................................................. 3-17
Notes on access permissions ........................................................................ 3-17
User Authentication ........................................................................................... 3-18
Scope of support ......................................................................................... 3-19
User authentication settings ......................................................................... 3-19
Specify the method of user authentication ..................................................... 3-20
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Hitachi Compute Blade 500 Series Logical partitioning manager User's Guide
Local authentication ..................................................................................... 3-20
LDAP authentication .................................................................................... 3-24
RADIUS authentication ................................................................................. 3-26
User authentication logs ............................................................................... 3-28
Audit log ........................................................................................................... 3-28
Scope of support ......................................................................................... 3-28
Audit log settings ......................................................................................... 3-29
Audit log format .......................................................................................... 3-29
LPAR manager Security ...................................................................................... 3-32
Certificates in LPAR manager ........................................................................ 3-32
Security for functions and tools that use a management network .................... 3-37
4 Maintenance Functions ...................................................................... 4-1
Guest Memory Dump Collection Command ............................................................ 4-2
LPAR manager Dump Collection Command ............................................................ 4-6
Backup Functions ................................................................................................ 4-8
Backup of System Area .................................................................................. 4-8
Backup of Data Area .................................................................................... 4-10
Backup of LPAR manager ............................................................................. 4-12
LPAR manager Firmware Upgrade / Update ......................................................... 4-13
Relation between server blade and LPAR manager firmware ........................... 4-13
Selecting the bank of LPAR manager firmware ............................................... 4-14
LPAR Migration .................................................................................................. 4-16
Safe mode ......................................................................................................... 4-17
5 Setup of LPAR manager ..................................................................... 5-1
Setup Overview ................................................................................................... 5-2
Setup of Terminal Software .................................................................................. 5-4
Connects LPAR manager Screen ........................................................................... 5-6
LPAR manager Settings ........................................................................................ 5-7
Creating LPAR ................................................................................................... 5-10
Adding LPAR ............................................................................................... 5-10
Configuration of Processor ........................................................................... 5-12
Configuration of Memory .............................................................................. 5-16
Configuration of PCI Device .......................................................................... 5-18
Assign VNICs (Virtual NICs) to LPARs ............................................................ 5-26
Assign Shared FCs to LPARs ......................................................................... 5-28
Save Configuration Changed on LPAR manager Screen ......................................... 5-30
Boot the Guest OS ............................................................................................. 5-32
Activating LPAR ........................................................................................... 5-32
Boot order setting .............................................................................................. 5-33
Boot setting ................................................................................................ 5-33
Creating boot option .................................................................................... 5-40
Changing Boot order .................................................................................... 5-52
Deleting Boot order ..................................................................................... 5-61
Display settings for Guest OS .............................................................................. 5-63
Display settings for Windows ........................................................................ 5-64
Display settings for Linux ............................................................................. 5-64
Deactivation of LPAR .......................................................................................... 5-65
Shutdown of Guest OS ................................................................................. 5-65
Deactivation of LPAR ................................................................................... 5-65
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Hitachi Compute Blade 500 Series Logical partitioning manager User's Guide
Termination of LPAR manager ............................................................................ 5-67
Shutting down of LPAR manager .................................................................. 5-67
6 LPAR manager backup ....................................................................... 6-1
LPAR manager backup files .................................................................................. 6-2
Operations required creating backup files ........................................................ 6-2
Save/backup/restore tools for LP configuration ................................................ 6-3
Backing up the LPAR manager configuration as of a time before device
isolation ........................................................................................................ 6-3
Creating backup files ........................................................................................... 6-4
Restoring backup files .......................................................................................... 6-5
7 Operation by LPAR manager Screen .................................................... 7-1
LPAR manager Key Operations ............................................................................. 7-2
Summary of LPAR manager Screen ....................................................................... 7-4
Common items for all screens ........................................................................ 7-6
LPAR manager Menu ..................................................................................... 7-6
Logical Partition Configuration ........................................................................ 7-9
Logical Processor Configuration .................................................................... 7-28
Physical Processor Configuration ................................................................... 7-32
PCI Device Information ................................................................................ 7-35
PCI Device Assignment ................................................................................ 7-39
Virtual NIC Assignment ................................................................................ 7-44
Shared FC Assignment ................................................................................. 7-56
Allocated FC Information .............................................................................. 7-61
System Configuration ................................................................................... 7-63
System Service State ................................................................................... 7-76
Date and Time ............................................................................................ 7-81
LP Options ................................................................................................ 7-105
LPAR Usage ............................................................................................... 7-118
Front Panel ............................................................................................... 7-124
LP system logs .......................................................................................... 7-128
Firmware Version Information .................................................................... 7-131
8 LPAR manager Dump Collection .......................................................... 8-1
Check the LPAR manager Dump ........................................................................... 8-2
Collects the LPAR manager Dump ......................................................................... 8-2
Exports LPAR manager Dump ............................................................................... 8-4
9 Messages .......................................................................................... 9-1
LPAR manager Boot Messages .............................................................................. 9-2
LPAR manager Screen messages ........................................................................ 9-10
LP system logs Screen Messages ......................................................................... 9-27
Error Level .................................................................................................. 9-27
Warn Level ................................................................................................. 9-37
Info Level ................................................................................................... 9-45
Audit log messages ............................................................................................ 9-56
Notation used in audit log messages ............................................................. 9-57
List of audit log messages ............................................................................ 9-57
HCSM Alert Messages ......................................................................................... 9-94
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Hitachi Compute Blade 500 Series Logical partitioning manager User's Guide
10 Notes ............................................................................................ 10-1
Note for the LPAR manager Setup ....................................................................... 10-2
Restriction of SMP configuration ................................................................... 10-2
Setting FC Switch ........................................................................................ 10-3
Requirements for LPAR manager Startup ....................................................... 10-3
Notes on temporary LP licenses .................................................................... 10-4
Maximum Resolution .................................................................................... 10-5
Note for the LPAR manager operation ................................................................. 10-5
LPAR manager boot up ................................................................................ 10-5
LPAR Memory Fragmentation ....................................................................... 10-5
Memory allocation to LPARs ......................................................................... 10-8
PCI Device Assignment ................................................................................ 10-8
Using inter-LPAR communication in a redundant network configuration ........... 10-9
Displaying shared NIC/virtual NIC by ethtool command ................................ 10-11
Use Dedicated NIC ..................................................................................... 10-11
Use Shared NIC ......................................................................................... 10-11
Availability of Shared FC ............................................................................. 10-12
Timeout in Saving Configuration ................................................................. 10-12
Boot Option Settings .................................................................................. 10-13
LPAR manager Shutdown ........................................................................... 10-13
Notes for System Management ......................................................................... 10-13
Restriction when Dual-core CPU is installed in CB 520H A1/B1/B2/B3/B4 model  10-13
Restriction when TPM (Trusted Platform Module) is installed ......................... 10-14
Isolation/degradation for CPU, memory, or PCI device .................................. 10-14
CPU core degradation ................................................................................ 10-14
Restrictions on use of Onboard LAN ............................................................ 10-14
Restrictions on use of Emulex 10Gb NIC ...................................................... 10-15
Restrictions of the numbers of NIC ports assignment for Windows ................ 10-16
Multicast communication errors .................................................................. 10-18
Performance Slowdown on the Management Path ........................................ 10-19
Expansion of VNIC System No .................................................................... 10-20
Remote Console Function ........................................................................... 10-20
NETM/Remote Control ................................................................................ 10-21
Server Conductor/Blade Server Manager ..................................................... 10-21
Server Conductor/Deployment Manager ...................................................... 10-22
Server Conductor/Advanced Agent .............................................................. 10-22
Power Capping .......................................................................................... 10-22
A Setting Item Catalogue ...................................................................... A-1
Server Blade which LPAR manager supports .......................................................... A-2
PCI device which LPAR manager supports ............................................................. A-2
OSs which LPAR manager supports ....................................................................... A-4
Functions which LPAR manager supports .............................................................. A-9
SR-IOV functions which LPAR manager supports .................................................. A-17
LPAR manager licenses ...................................................................................... A-23
Differences in supported items depending on the guest OSs ................................. A-24
B Setting Item List ............................................................................... B-1
LPAR manager Setting Items ................................................................................ B-2
EFI Driver Setting Items ...................................................................................... B-8
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Hitachi Compute Blade 500 Series Logical partitioning manager User's Guide
C Console Types .................................................................................. C-1
Console Types ..................................................................................................... C-2
D LPAR manager use Port numbers ....................................................... D-1
LPAR manager use Port numbers ......................................................................... D-2
E System Configuration ........................................................................ E-1
Recommended LPAR manager Configuration (SAN Boot) ........................................ E-2
F HvmGetPerf Command ....................................................................... F-1
HvmGetPerf Command ......................................................................................... F-2
G Software License Information ............................................................ G-1
Software License Information ............................................................................... G-2
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Hitachi Compute Blade 500 Series Logical partitioning manager User's Guide
Preface
This document describes how to use the Compute Blade 500. (The
introduction of the preface states the purpose of the document, briefly
introduces the subject of the document, and provides links to the sections of
the preface.)
Notice: The use of Compute Blade 500 and all other Hitachi Data Systems
products is governed by the terms of your agreement(s) with Hitachi Data
Systems.
â–¡
Intended Audience
â–¡
Product Version
â–¡
Release Notes
â–¡
Referenced Documents
â–¡
Document Organization
â–¡
Document conventions
â–¡
Convention for storage capacity values
â–¡
Getting help
â–¡
Comments
Preface
ix
Hitachi Compute Blade 500 Series Logical partitioning manager User's Guide
Intended Audience
This document is intended for the personnel who are involved in planning,
managing, and performing the tasks to prepare your site for Compute Blade
installation and to install the same.
This document assumes the following:
• The reader has a background in hardware installation of computer
systems.
• The reader is familiar with the location where the Compute Blade will be
installed, including knowledge of physical characteristics, power systems
and specifications, and environmental specifications.
Product Version
This document revision applies to Logical partitioning manager 02-62.
Release Notes
Read the release notes before installing and using this product. They may
contain requirements or restrictions that are not fully described in this
document or updates or corrections to this document.
Referenced Documents
• Hitachi Compute Blade 500 Series Server Blade Setup Guide
• Hitachi Compute Blade 500 Series Management Module Setup Guide
• Hitachi Compute Blade 500 Series Web Console User's Guide
• Hitachi Compute Blade 500 Series EFI User's Guide
• Hitachi Compute Blade Series Hitachi Compute Rack Series OS
Installation Guide for Windows Server
• Hitachi Compute Blade Series OS Installation Guide for Red Hat Enterprise
Linux
• Hitachi Compute Blade Emulex Adapter User's Guide for Driver
• Hitachi Compute Blade Emulex Adapter User's Guide for Hardware
• Server installation and monitoring tool OS Setup Guide
• Hitachi Gigabit Fibre Channel Adapter USER'S GUIDE (BIOS/EFI Edition)
• Hitachi Compute Blade HVM Navigator User's Guide - Getting Started
• Hitachi Compute Blade HVM Navigator Installation Manual
• Hitachi Compute Blade HVM Navigator User's Guide - LPAR Configuration
• Hitachi Compute Blade HVM Navigator User's Guide - Monitoring
• Hitachi Compute Blade HVM Navigator User's Guide - Viewer
• Hitachi Compute Blade HVM Navigator User's Guide - Migration
x
Preface
Hitachi Compute Blade 500 Series Logical partitioning manager User's Guide
• Hitachi Compute Blade HVM Navigator User's Guide - Operation Quick
Reference
• Hitachi Compute Blade LPAR Migration Guide
• Hitachi Compute Blade Logical VGA SnapShot
• HVM Management Command (HvmSh) Operation Guide
• Hitachi Command Suite Compute Systems Manager User Guide
Document Organization
The table below provides an overview of the contents and organization of this
document. Click the chapter title in the left column to go to that chapter. The
first page of each chapter provides links to the sections in that chapter.
Chapter Description
Chapter 1, LPAR manager Functions Explains the basic functions of LPAR
manager.
Chapter 2, System Operation Describes the system operation.
Chapter 3, High Reliability Functions Explains High Reliability Functions.
Chapter 4, Maintenance Functions Explains Maintenance Functions.
Chapter 5, Setup of LPAR manager Explains setup of LPAR manager by using
the LPAR manager screen. Contents on the
screens might be changed depend on the
version.
Chapter 6, LPAR manager backup Explains LPAR manager backup.
Chapter 7, Operation by LPAR manager
Screen
Explains LPAR manager operation by using
the LPAR manager screen.
Chapter 8, LPAR manager Dump Collection Explain the over view of LPAR manager at
this chapter.
Chapter 9, Messages Describes the Displaying Message.
Chapter 10, Notes Explains Notes for LPAR manager.
For notes for the system unit, see each
User's Guides.
Appendix A, Setting Item Catalogue Setting Item Catalogue
Appendix B, Setting Item List Setting Item List
Appendix C, Console Types Console Types
Appendix D, LPAR manager use Port
numbers
LPAR manager use port numbers
Appendix E, System Configuration System Configuration
Appendix F, HvmGetPerf Command HVMGetPerf Command
Appendix G, Software License Information Software License Information
Preface
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Hitachi Compute Blade 500 Series Logical partitioning manager User's Guide
Document conventions
The term "Compute Blade" see all the models of the Compute Blade, unless
otherwise noted.
The Hitachi Virtualization Manager (HVM) name has been changed to Hitachi
logical partitioning manager (LPAR manager, or LP). If you are using HVM
based logical partitioning feature, substitute references to Hitachi logical
partitioning manager (LPAR manager, or LP) with HVM.
This document uses the following typographic conventions:
Convention Description
Regular text bold In text: keyboard key, parameter name, property name,
hardware labels, hardware button, hardware switch.
In a procedure: user interface item
Italic Variable, emphasis, reference to document title, called-out
term
screen/code Command name and option, drive name, file name, folder
name, directory name, code, file content, system and
application output, user input
< > angled brackets Variable (used when italic is not enough to identify variable).
[ ] (square bracket) Optional values
{ } braces Required or expected value
| vertical bar Choice between two or more options or arguments
This document uses the following icons to draw attention to information:
Icon Meaning Description
WARNING This indicates the presence of a potential risk that
might cause death or severe injury.
CAUTION This indicates the presence of a potential risk that
might cause relatively mild or moderate injury.
NOTICE This indicates a risk of severe damage to the
equipment or damage to nearby items.
Note This indicates notes not directly related to injury
or severe damage to equipment.
Tip This indicates advice on how to make the best use
of the equipment.
The following table shows abbreviations of logical partitioning manager and
logical partition.
Term Abbreviation
logical partitioning manager LPAR manager or LP
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Preface
Hitachi Compute Blade 500 Series Logical partitioning manager User's Guide
Term Abbreviation
logical partition LPAR
Convention for storage capacity values
Physical storage capacity values (for example, disk drive capacity) are
calculated based on the following values:
Physical capacity unit Value
1 kilobyte (KB)
1,000 (10
3
) bytes
1 megabyte (MB)
1,000 KB or 1,000
2
bytes
1 gigabyte (GB)
1,000 MB or 1,000
3
bytes
1 terabyte (TB)
1,000 GB or 1,000
4
bytes
1 petabyte (PB)
1,000 TB or 1,000
5
bytes
1 exabyte (EB)
1,000 PB or 1,000
6
bytes
Logical storage capacity values (for example, logical device capacity) are
calculated based on the following values:
Logical capacity unit Value
1 block 512 bytes
1 KB
1,024 (2
10
) bytes
1 MB
1,024 KB or 1,024
2
bytes
1 GB
1,024 MB or 1,024
3
bytes
1 TB
1,024 GB or 1,024
4
bytes
1 PB
1,024 TB or 1,024
5
bytes
1 EB
1,024 PB or 1,024
6
bytes
Getting help
The Hitachi Data Systems customer support staff is available 24 hours a day,
seven days a week. If you need technical support, log on to the Hitachi Data
Systems Portal for contact information:
https://portal.hds.com.
Comments
Please send us your comments on this document: [email protected].
Include the document title and number including the revision level (for
Preface
xiii
Hitachi Compute Blade 500 Series Logical partitioning manager User's Guide
example, -07), and refer to specific sections and paragraphs whenever
possible. All comments become the property of Hitachi Data Systems
Corporation.
Thank you!
xiv
Preface
Hitachi Compute Blade 500 Series Logical partitioning manager User's Guide
1
LPAR manager Functions
This chapter explains the basic functions of LPAR manager.
â–¡
LPAR manager Overview
â–¡
Logical Partitioning
â–¡
Logical Partitioning of Processors
â–¡
Logical Partitioning of Memory
â–¡
Logical Partitioning of PCI Devices
â–¡
NIC (Network Interface Card)
â–¡
FC (Fibre Channel)
â–¡
USB/KVM
LPAR manager Functions
1-1
Hitachi Compute Blade 500 Series Logical partitioning manager User's Guide
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.
Table 1-1 Physical and Logical resources
Term Description
Physical Indicates the resources that actually exist in the system. "Physical" is
sometimes omitted, except where this would cause confusion.
Logical 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.
An image when the system is booted in the LP mode is as follows:
Figure 1-1 System Activation in the LP mode
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
1-2
LPAR manager Functions
Hitachi Compute Blade 500 Series Logical partitioning manager User's Guide
Logical Partitioning
Dedicated Resources and Shared Resources
Although the LP mode makes it possible to logically partition the hardware
resources of a server blade, the method of logical partitioning varies
depending on the hardware resource.
Some types of logical partitioning are shown in the table below.
Table 1-2 Type of Logical Partitioning
Term Description
Typical
Hardware
Resources
Dedicated The LPAR to which a hardware resource
has been allocated dedicatedly uses the
hardware resource and other LPARs
cannot use the hardware resource.
To switch the LPAR that can use
resources, make sure to shut down the
LPAR once to change the configuration
definition.
Processors
Memories
PCI devices
Shared Time-shared The particular LPARs to which a hardware
resource has been allocated timeshare
the hardware resource.
LPAR manager keeps switching LPARs
that can use the device at very short time
intervals.
Processors
PCI devices
Exclusive-
shared
One of the particular LPARs to which a
hardware resource has been allocated
exclusively uses the hardware resource.
The LPAR using the resource can be
switched dynamically.
Serial ports
USB devices
Remote
Console
Figure 1-2 Logical Partitioning of Hardware Resources
LPAR manager Functions
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Hitachi Compute Blade 500 Series Logical partitioning manager User's Guide
Logical Partitioning of Processors
The method of logically dividing the physical processor is referred to as the
scheduling mode. You can select dedicated mode or shared mode for the
scheduling mode. Different features of each mode are shown in the table
below.
Table 1-3 Processor Scheduling Mode
Mode Description
Recommended
System
Dedicated
Mode
• The logical processor on an LPAR dedicatedly
uses the corresponding physical processor.
• Since there is no overhead for switching the
physical processors between the logical
processors, the LPAR performs faster.
• For each LPAR, it is possible to specify the
number of dedicated logical processors
assigned. (However, it is not possible to specify
more than the number of physical processors
available.)
• System required
high processing
performance
• System required
critical time
period and high
processing in
performance
Shared
Mode
• Physical processors are time-shared among the
logical processors defined in the LPAR for which
the shared mode is specified.
• The utilization rate of the physical processors
can be set dynamically for each LPAR, allowing
flexible use of physical processor resources.
• The number of logical processors to be used in
the shared mode can be set for each LPAR. (It
is possible to specify more than the number of
physical processors available, but this
operations may cause the extremely slow
down.)
• System required
cost efficiency
and flexibility
rather than high
processing
performance
• System required
balanced
processing
between LPARs
Dedicated Mode
Example of Dedicated Mode is below
1-4
LPAR manager Functions
Hitachi Compute Blade 500 Series Logical partitioning manager User's Guide
Figure 1-3 Processor Assignment of Dedicated Mode
Shared Mode
Example of Dedicated Mode is below
Figure 1-4 Processor Assignment of Shared Mode
Scheduling mode dynamically change
Shared and dedicated LPARs can be switched dynamically without
deactivating.
a. The Scheduling mode of arbitrary Logical processor can be changed from
dedicated mode to shared mode.
b. The Scheduling mode of arbitrary Logical processor can be changed from
shared mode to dedicated mode.
LPAR manager Functions
1-5
Hitachi Compute Blade 500 Series Logical partitioning manager User's Guide
Figure 1-5 Scheduling mode dynamically change
Service Ratio
To the LPARs in the Shared Processor Mode, you can set the relative
processor resource allocation rate (called 'Service Ratio'), which represents
the ratio of the time period in which the LPAR actually run on the physical
processors (called 'Service Time'). The Service Ratio can be specified from 1
to 999.
LPAR manager partitions the performance of the physical processor used in
shared mode in 1 percent unit. LPAR manager calculates the relative
allocation rate of the service time with 10-millisecond time-slice accuracy,
which equals 1% of a unit processor time (1 second).
Service ratio has a meaning only to LPAR of shared mode. Service ratio does
not have any meaning to LPAR of shared mode, and cannot be assigned.
The examples of the relations between Service Ratio and allocation rate are
as follows.
(Example 1)
This example shows the allocation rates of LPAR1 (Service Ratio=100, the
number of the logical processors=2) and LPAR2 (Service Ratio=100, the
number of the logical processors=2) when the number of the physical
processor can be used by the shared mode LPARs is 3.
Figure 1-6 Service Ratio Example 1
1-6
LPAR manager Functions
Hitachi Compute Blade 500 Series Logical partitioning manager User's Guide
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Hitachi CB 520H A1 User manual

Category
Software
Type
User manual

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