How To Install A Virtual Image Facility On Linux (Amd64) On A 3390 Dasd 3390 (Amd32) Dasda (Amd86) (Amd66) (Dasd) (Virtual Image Facility) (For

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S/390

Virtual Image Facility

for Linux (VIF)

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Introduction

S/390 Virtual Image Facility for Linux S/390 Virtual Image Facility for Linux

A way to run multiple Linux images on S/390 A way to run multiple Linux images on S/390

More capacity than LPAR More capacity than LPAR

Linux-based administration Linux-based administration

Shared resources Shared resources

Requires only limited S/390 skills Requires only limited S/390 skills

ICKDSF ICKDSF IOCP IOCP HMC/SE HMC/SE

Introduction

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IBM S/390 Integrated Facility for Linux IBM S/390 Integrated Facility for Linux

Linux-only processor engines Linux-only processor engines

Standalone Linux Standalone Linux

Virtual Image Facility for Linux Virtual Image Facility for Linux

Less expensive than full-function engines Less expensive than full-function engines

9672 G5 and G6 and zSeries 900 only 9672 G5 and G6 and zSeries 900 only

No change to processor model code No change to processor model code

No change in licensed software charges for No change in licensed software charges for

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Virtual Image Facility for

Linux

Product Overview

Conceptual Structure

VIF DASD VIF system

VIF image paging space Linux DASD partitions

Network VIF Management Client Linux Logical Partition Network

Linux Linux Linux

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Virtual Image Facility Hypervisor

Based on virtual machine technology Based on virtual machine technology

Installs from 3480 tape to 3390 DASD Installs from 3480 tape to 3390 DASD

Requires real network connection Requires real network connection

Provides Linux image management Provides Linux image management

DASD DASD Storage Storage Processors Processors Network Network

Virtual Image Facility Hypervisor

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Provides volume management Provides volume management

Image DASD partitions Image DASD partitions

Hypervisor paging Hypervisor paging

Provides DASD partition management Provides DASD partition management

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Virtual Image Facility Hypervisor

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Provides system management Provides system management

Backup and restore configuration Backup and restore configuration

Collect problem determination data Collect problem determination data

Reconfigure internal network Reconfigure internal network

Install Linux image from FTP site Install Linux image from FTP site

Produce hardware error report Produce hardware error report

Apply VIF service Apply VIF service

Virtual Image Facility Hypervisor

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Provides image console support Provides image console support

Telnet to hypervisor Telnet to hypervisor

LOGIN <image-name>

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Master Linux Image

Predefined image named

Predefined image named LINUX0_LINUX0

64 MB storage 64 MB storage

850 MB R/W partition 850 MB R/W partition

3 MB R/O partition (

3 MB R/O partition (vifvif command)_command)

Must be installed and configured using Must be installed and configured using

standard distribution (SuSE, TurboLinux) standard distribution (SuSE, TurboLinux)

Runs system management client Runs system management client

Console always on HMC Console always on HMC

Operating System Messages

Operating System Messages task task

Other Linux Images

Customer-defined Customer-defined

From LINUX0 using client program From LINUX0 using client program

May need to add volumes to hypervisor May need to add volumes to hypervisor

Image DASD partitions Image DASD partitions

Hypervisor paging Hypervisor paging

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Virtual Image Facility for

Linux

Planning

Planning Tasks

Sizing Sizing Storage Storage Processor Processor Network Planning Network Planning

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Sizing

Many Linux environments consist of a large Many Linux environments consist of a large

number of lightly used machines number of lightly used machines

Key for S/390 is to determine the number of Key for S/390 is to determine the number of

active machines active machines

Can estimate storage requirements Can estimate storage requirements

Can estimate processor requirements Can estimate processor requirements

Guidelines for initial configuration only Guidelines for initial configuration only

Engage with IBM or Business Partner to use Engage with IBM or Business Partner to use

SIZE390 program SIZE390 program

Sizing:

Storage

Real Storage = Images x 0.5 + Active x (15 + (Files x File Size)) Paging Factor

Images: Images defined

Active: Images busy per interval

Files: Mean number of files accessed

File Size: Mean size of files accessed (MB)

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Storage Sizing Examples

16 24 32 40 48 56 64

Mean Image Size (MB) 0 50 100 150 200 250 300 350

Real Storage Size (MB)

Factor = 2 Factor = 3 Factor = 4 10 Images, all active

Sizing:

Processor

Each active image requires processor Each active image requires processor

resources resources

For no contention, allow one processor per For no contention, allow one processor per

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Network Planning

Each image with a network connection Each image with a network connection

requires an IP address requires an IP address

Virtual Image Facility requires an IP address Virtual Image Facility requires an IP address

Images must be in subnetwork separate from Images must be in subnetwork separate from

Virtual Image Facility Virtual Image Facility

Images may have dedicated network Images may have dedicated network

connection(s) connection(s)

Internal network connections are fast and Internal network connections are fast and

inexpensive inexpensive

Hardware Management Console

Planning

Consider enabling Web access Consider enabling Web access

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Virtual Image Facility for

Linux

Installation

Major Steps

Define Logical Partition Define Logical Partition

Restore distribution volume Restore distribution volume

Configure VIF Configure VIF

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Define Logical Partition

Use HMC or SE to define LPAR Use HMC or SE to define LPAR

Update IOCDS (if necessary) Update IOCDS (if necessary)

Device access Device access 3390 DASD 3390 DASD Network interfaces Network interfaces Tape drive Tape drive

Restore To Disk

Use ICKDSF to initialize target 3390 volume Use ICKDSF to initialize target 3390 volume

(if necessary) (if necessary)

Load from distribution tape Load from distribution tape

Load parameter AUTOxxxx Load parameter AUTOxxxx

xxxx is 3390 device number xxxx is 3390 device number

Check for disabled wait state (via

Check for disabled wait state (via Hardware _Hardware

Messages

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Configure VIF

IPL from 3390 DASD IPL from 3390 DASD

Invoke

Invoke Operating System MessagesOperating System Messages task task Respond to configuration prompts

Respond to configuration prompts

Console Message Access:

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Console Message Access:

Select VIF Image

Console Message Access:

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Console Message Access:

View Messages

Console Message Access:

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Console Message Access:

View Response

Sample Configuration Responses

Hypervisor system residence Label

Hypervisor system residence Label vif300vif300 Hypervisor network device address

Hypervisor network device address e24e24

Hypervisor network port number

Hypervisor network port number 22

Hypervisor network type

Hypervisor network type ethernetethernet

Hypervisor network MTU size

Hypervisor network MTU size 14921492

Hypervisor IP address

Hypervisor IP address 192.168.98.110_{192.168.98.110}

Hypervisor IP mask

Hypervisor IP mask 255.255.255.0_{255.255.255.0}

Hypervisor gateway IP address

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Sample Configuration Responses

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Master Linux network type

Master Linux network type internalinternal Master Linux IP address

Master Linux IP address 192.168.1.10_192.168.1.10

Master Linux IP mask

Master Linux IP mask 255.255.255.255255.255.255.255

FTP server IP address

FTP server IP address 192.168.98.1192.168.98.1

FTP server user name

FTP server user name tmcctmcc

FTP server password

FTP server password guest_guest

FTP server account or null

Installation file path and name

Installation file path and name tmcc/vif/suse7iucv.ins_{tmcc/vif/suse7iucv.ins}

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Install Master Linux

Invoke

Invoke Operating System Messages_{Operating System Messages} task task Configure network

Configure network

Augment configuration (if needed) Augment configuration (if needed)

Telnet to master Linux Telnet to master Linux

Proceed depending on Linux distribution Proceed depending on Linux distribution

After the boot image has been created, use After the boot image has been created, use

the

the vifvif IMAGE SET command to change the IMAGE SET command to change the boot device

boot device

Sample SuSE Linux Configuration

Reply "0" to network prompt Reply "0" to network prompt Issue following commands: Issue following commands:

insmod dasd dasd=201,203 insmod dasd dasd=201,203

mount /dev/dasdb1 /mnt -r mount /dev/dasdb1 /mnt -r

ifconfig iucv0 192.168.1.10 pointopoint ifconfig iucv0 192.168.1.10 pointopoint

192.168.98.110 mtu 1492 192.168.98.110 mtu 1492

route add default gw 192.168.98.110 route add default gw 192.168.98.110

inetd inetd

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Considerations

Master Linux access is critical Master Linux access is critical

Only authorized

Only authorized vifvif command user_{command user}

Take appropriate measures Take appropriate measures

Do not run risky experiments on LINUX0 Do not run risky experiments on LINUX0

e.g., install an untested new distribution e.g., install an untested new distribution Provide appropriate protection for

Provide appropriate protection for rootroot Can reinstall (restore) VIF over existing Can reinstall (restore) VIF over existing

system without losing customization system without losing customization

Considerations

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Backup function requires Linux-based Backup function requires Linux-based

solution solution

Can automate VIF system management Can automate VIF system management

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Virtual Image Facility for

Linux

Positioning

Target Market

Customers who want to run more than a few Customers who want to run more than a few

Linux images Linux images

Customers who do not run VM Customers who do not run VM

Customers with spare processor and storage Customers with spare processor and storage

capacity capacity

Customers with G5, G6, or z900 who can add Customers with G5, G6, or z900 who can add

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Virtual Image Facility for

Linux

Availability

General Availability

5739-A01 GA September 29, 2000 5739-A01 GA September 29, 2000

One-time charge per processor One-time charge per processor

Warranty service via e-mail, fax, postal mail Warranty service via e-mail, fax, postal mail

5739-SPT GA September 29, 2000 5739-SPT GA September 29, 2000

Software Service and Support Software Service and Support Annual charge per processor Annual charge per processor

Telephone service, emergency repair, defect Telephone service, emergency repair, defect

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Virtual Image Facility for

Linux

For more information, visit

http://www.s390.ibm.com/linux/vif/

Announcement Letter Announcement Letter Specification Sheet Specification Sheet