Overview and system requirements

Use this guide to install IBM® InfoSphere® Information Server with the optional microservices tier, which includes Enterprise Search, Watson Knowledge Catalog, and the Information Governance Catalog and Information Analyzer console.

The deployment of IBM InfoSphere Information Server with the optional microservices tier (known in version 11.7 as the Enterprise Search node) introduces two new components: Docker and Kubernetes. Other microservices are deployed as containers and pods that are managed by Kubernetes. Docker provides the platform for application deployment by using Docker images and containers, while Kubernetes automates deploying, scaling, and operating application containers.

System requirements

Before you begin the installation, verify that your system meets the following storage, operating system, and memory requirements:

Table 1. System requirements
Requirement Minimum OS Minimum Memory Minimum Cores Minimum Additional Disk Space
InfoSphere Information Server node See: 8 GB 4  
Enterprise Search node (version 11.7) Red Hat Enterprise Linux v7.3 32 GB 8 300 GB for persistent volume storage
Single-node microservices tier without Watson Knowledge Catalog (version 11.7.1) Red Hat Enterprise Linux v7.3 and above 32 GB 8 300 GB for persistent volume storage
Single-node microservices tier with Watson Knowledge Catalog (version 11.7.1) Red Hat Enterprise Linux v7.3 and above 64 GB 16 300 GB for persistent volume storage
Multi-node microservices tier without Watson Knowledge Catalog (version 11.7.1) Red Hat Enterprise Linux v7.3 and above 32 GB (each node) 8 (each node) 300 GB for persistent volume storage

The storage volume can be on any disk on the system or an NFS mount. With local storage, each node must meet this storage requirement. With an NFS mount, the same disk or storage can be mounted on any number of nodes.

Multi-node microservices tier with Watson Knowledge Catalog (version 11.7.1) Red Hat Enterprise Linux v7.3 and above 64 GB (master node)

64 GB (each worker node)

16 (master node)

16 (each worker node)

300 GB for persistent volume storage

The storage volume can be on any disk on the system or an NFS mount. With local storage, each node must meet this storage requirement. With an NFS mount, the same disk or storage can be mounted on any number of nodes.

Supported Docker version

Client:
Version: 18.06.1-ce API version: 1.38 
Go version: go1.10.3 OS/Arch: linux/amd64
Server:
Engine: Version: 18.06.1-ce API version: 1.38 (minimum version 1.12) 
Go version: go1.10.3 OS/Arch: linux/amd64

Supported Kubernetes version

Kubernetes 1.13

Assumptions and additional requirements

  • These procedures assume that you are installing the software as a root user.
  • Both the Information Server node and Enterprise Search node must be configured with static IP addresses (no Dynamic Host Configuration Protocol (DHCP)).
  • For an Information Server node running on Windows, only Open SSH connectivity is supported.
  • The download of the IBM InfoSphere Information Server TAR file and the Docker TAR file requires 20 GB of disk space.
  • The Information Server Enterprise Search node must have 6 GB of additional space to extract the Docker TAR file. You can place the file in any directory.

Pre-installation checklist

Use this checklist to ensure that your environment is ready and will pass all the requirements checks. After you complete all the items on the checklist, you are ready to begin installation by Downloading the Information Server and Docker repository images .
Table 2. Pre-installation checklist
Requirements InfoSphere Information Server Node Enterprise Search Node (includes IBM Watson Knowledge Catalog for 11.7.1)
Ensure static IP address
Prepare all nodes
Check the amount of memory
Check the number of cores
Check the file creation mask value
Check the Maximum number of Allowed Open Files setting
Check the Max User Processes setting
Ensure the firewall daemon is disabled
Ensure Secure Linux is disabled
Prepare the Enterprise Search node  
Prepare the microservices tier node for version 11.7.1  
Ensure the local host look up for the InfoSphere Information Server node is configured  
Install any missing packages  
Check the devices and volumes  
Configure the Docker volume  
Check the planned private IP address range for the Weave network  
Configure the services cluster IP address range  
Check to see if IP Forwarding is enabled  
Set up a root passwordless SSH connection from the Enterprise Search node to itself. (11.7 only)  
Ensure that port 443 is used only by the HAProxy load balancer, for a full suite installation.  
Ensure that the swap space is disabled.  
Take note of information about the Information Server Enterprise Search installation directory  
Prepare the Information Server node  
Configure the Message Limits settings  
Configure the Semaphore Limits settings  
Install any missing packages  
Configure Host lookup for Enterprise Search node if required  
Set up a root passwordless SSH connection to the Enterprise Search node (Optional for version 11.7.1)