Migrating side-by-side versions of InfoSphere Information Server (Linux and UNIX only)
If your engine tier is on a Linux® or UNIX computer, you can keep that instance and also install InfoSphere® Information Server, Version 11.7 on the same computer. You can also install multiple InfoSphere Information Server engine tiers on different computers and have them all registered with one InfoSphere Information Server services tier.
Each engine tier that is installed on the same computer must be registered to a different instance of the InfoSphere Information Server services tier.
If you maintain different releases of various engine tiers, or multiple instances of the same engine tier, you can keep all of those instances.
Each instance of an engine tier is identified by a tag ID (an ITAG) and allocated a different port. You must specify a different installation directory for each engine tier. Each engine tier has a different set of InfoSphere DataStage® projects that you access through that server. You connect to different servers by specifying the port number in addition to the UNIX server ID.
The existing engine tier instance retains the default port number, 31538, and uses the default ITAG, ADE. If you already have multiple server instances, then you already have servers that use different ports and ITAGs.
Each version of DataStage requires clients of the same version. You must use the Multi-Client Manager program to switch between different client versions on your Windows client computers.
Engine tier instance | Server details |
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InfoSphere Information Server, Version 11.7 engine tier |
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Engine tier instance | Server details |
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InfoSphere Information Server, Version 8.1 engine tier |
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InfoSphere Information Server, Version 11.7 engine tier |
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Engine tier instance | Server details |
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InfoSphere Information Server, Version 11.7 engine tier |
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InfoSphere Information Server, Version 11.7 engine tier |
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InfoSphere Information Server, Version 11.7 engine tier |
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