Memory and disk space requirements

Requirements for memory and disk space depend on the installation operating system, and on the IBM® Integration Bus components and other products that you are installing.

Distributed systems

• 512 MB of RAM is required to support runtime operations (1 MB equals approximately 1 000 000 bytes).
• 512 MB of RAM is required to support IBM Integration Toolkit operations on Linux on x86, Linux on x86-64, or Windows. This specification is the minimum supported level; for improved performance, provide 1 GB (1 GB equals approximately 1 000 000 000 bytes).
• 512 MB of RAM is required to support the IBM Integration Explorer.
• Disk space requirements are dependent on the components that you install and the working space that is required by those components (for example, for WebSphere® MQ queues and persistent messages).

  Check that your computer has at least the space that is shown in the table, which provides guidance for both permanent product requirements and temporary space. Check that these requirements have not been updated in the latest product readme file readme.html.

  If the installation directory and the temporary space are on the same partition or drive, add the two figures to check that you have enough space available. If you do not, increase the available storage or change the location of either the temporary space or the installation directory. The temporary files are deleted when installation is complete.

  • On AIX®, HP-UX, Linux, Solaris, and Windows systems, the default temporary space directory is pointed to by the IATEMPDIR system variable.

  The installation wizard displays requirements for permanent space, but not for temporary space. If the figure that the installation wizard displays is greater than the figure shown in the following tables, check that your computer has sufficient space before you continue with the installation.

  Table 1. Disk space requirements (Linux and Windows systems)

  Component / product	Linux on POWER®	Linux on x861	Linux on x86-64	Linux on IBM z Systems	Windows 32-bit1	Windows 64-bit1
  Integration Bus component	1.1 GB plus 2.2 GB temporary space	1 GB plus 2 GB temporary space	1 GB plus 2 GB temporary space	1.1 GB plus 2.2 GB temporary space	1.1 GB plus 2.2 GB temporary space	1.4 GB plus 2.8 GB temporary space
  IBM Integration Toolkit	Unavailable	1.6 GB plus 1.6 GB temporary space	1.9 GB plus 220 MB temporary space	Unavailable	1.6 GB plus 1.6 GB temporary space	1.9 GB plus 220 MB temporary space
  IBM Integration Explorer	Unavailable	250 MB plus 300 MB temporary space	250 MB plus 300 MB temporary space	Unavailable	200 MB plus 250 MB temporary space	200 MB plus 250 MB temporary space
  IBM Integration ODBC Database Extender	90 MB plus 90 MB temporary space	80 MB plus 80 MB temporary space	75 MB plus 75 MB temporary space	80 MB plus 80 MB temporary space	Unavailable	Unavailable

  Note:

  1. The space that is required for the IBM Integration Toolkit includes space for the shared resources directory and the package group directory.

  Table 2. Disk space requirements (UNIX)

  Component / product	AIX	HP-Itanium	Solaris on SPARC	Solaris on x86-64
  Integration Bus component	1.4 GB plus 2.6 GB temporary space	1.9 GB plus 3.8 GB temporary space	1.4 GB plus 2.6 GB temporary space	1.4 GB plus 2.6 GB temporary space
  IBM Integration Toolkit	Unavailable	Unavailable	Unavailable	Unavailable
  IBM Integration Explorer	Unavailable	Unavailable	Unavailable	Unavailable
  IBM Integration ODBC Database Extender	80 MB plus 80 MB temporary space	200 MB plus 200 MB temporary space	130 MB plus 130 MB temporary space	130 MB plus 130 MB temporary space

• On computers on which you create a broker, up to 60 MB is required for the broker configuration data within your file system.
• If you use the embedded Integration Registry, up to 200 MB additional disk space is required in the Integration Bus component directory.
• If you create databases that are accessed by message flows, additional space is required on those computers.
• If you intend to create more than one broker on any one computer, you require additional memory and swap space. For example, you might create more than one broker at different versions to complete migration. Plan for 1 GB RAM and 1 GB of swap space for each broker, in addition to the space and memory requirements of other applications.

  You must increase these figures if you deploy complex message flows to the brokers, or if you process large messages (of many megabytes), or complex messages that contain many different tags.

z/OS®

Details are given in Disk space requirements on z/OS. You must also check for later updates to this information in the section about DASD storage requirements in the Program Directory for IBM Integration Bus for z/OS in the IBM Publication Center publication number, GI13-3314.