/
3- Requirements and Considerations for Configuration

3- Requirements and Considerations for Configuration

2015/07/28
Sample System Diagram

[Figure] Example of System Configuration

Table of Contents

 

System Requirements

Hardware

CPU

At least 1Ghz or faster 32-bit (x86) or 64-bit (x64) processor.

Memory

Following memory capacity is needed to run MCCS service.
At least 1GB or more memory for system
At least 200MB or more for MCCS service

Disk

At least 500MB is needed.

Network Interface Card

At least 3 NICs (Network Interface Card) as below are needed to configure a mirror disk.

  • NIC for Service

  • NIC for Heartbeat

  • NIC for Mirror

At least 2 NICs (Network Interface Card) as below are needed to configure a shared disk.

  • NIC for service

  • NIC for Heartbeat

 

Operating system

MCCS supports the following operating system.

  • Up to Redhat Enterprise Linux 5 Update 6 x86 or x64 

  • Up to Redhat Enterprise Linux 6 x86 or x64 (Only supports Red Hat Enterprise Linux 6 x64 for PowerLinux.)

  • Up to CentOS Linux 5 Update 6 x86 or x64

  • Up to CentOS Linux 6 x86 or x64

 

 

Pre-installation Consideration

Common Information

MCCS supporting browsers

MCCS provided the web management console through a web browser. The following types of browsers are supported.

  • Internet Explorer  8.0 or higher

  • Google Chrome 7 or higher

  • Fire Fox 4 or higher

Operating System and Software

Server redundancy for high availability is subject to the following two server environment must be configured identically.

  • The sameOS version, Kernel Version

SE Linux must be disabled.
Network Manager service must be disabled.
If kernel modules that are used by the resources of the MCCS is ONDEMAND type, before resource online the module must be active.
In order to use MirrorDisk resource, you should pre-install DRBD 8.3.13.
For more details about DRBD installation, please refer to“8- Appendix DRBD Installation”of this document.)
In order to use SCSI Reservation Disk resource, you should pre-install sg3_util (yum install sg3_util)

 

IBM PowerLinux must be configured as below: 

PowerLinux required Above PowerLinux JDK 1.8.0 64 bit version for installation.
PowerLinux required ZIP package to gather MCCS log.
PowerLinux does not support network cad that uses ehea driver module.
PowerLinux does not support mirror disk environment.
PowerLinux only supports Red Hat Enterprise Linux 6 x64.

 

Network Interface Card

At least 2 NICS as listed below are needed for shared disk environment.

  • NIC for service : Used to client connection. This is also used for 2nd heartbeat.

  • NIC for heartbeat : Used to communication path between nodes.

At least 3 NICs as listed below are needed for mirror disk environment.

  • NIC for service : Used to client connection.  This is also used for 3rd heartbeat.

  • NIC for heartbeat : Used to communication path between nodes.

  • NIC for mirror : Used to replicate the data of local disk to target disk. This is also used for 2nd heartbeat.

(Number of virtual IP can be different according to the customer's environment) 
When configure Active-Standby server environment, virtual IP for service is managed in cluster and it should be the same bandwidth as IP of active and standby server.
Giga LAN is recommended for network for data mirroring.
Before installing MCCS, all network connection should be checked first through Ping test. Latest driver installation of NIC manufacturer is recommended for driver of network card.

When you assign an IP address on each NIC for service, heartbeat and mirror, Each IP address should not be on the same subnet among them. But each pair of them between nodes must be on the same subnet.