Objectivity/DB Advanced Multithreaded Server (AMS)

This section provides answers to the most commonly asked questions related to Objectivity/DB services.

• Advanced Multithreaded Server (AMS)
• Advanced Multithreaded Server(AMS)
• Starting/stoping the AMS
• Checking the AMS
• Lock Server
• Query Server
• SQL++ ODBC ServerServer

What is the Advanced Multithreaded Server (AMS)?

AMS is data-server software that is provided with Objectivity/DB. You can run AMS on remote data-server hosts to make the data files or journal files on those hosts available to Objectivity/DB applications. AMS is an optional alternative to native file servers (commonly, NFS or Microsoft Windows Network), which means you can use AMS on any or all remote data-server hosts in a distributed Objectivity/DB system. You must run AMS on each data-server host that is to contain a replicated database.

How do I start/stop the AMS?

On a given host, you can run only one AMS process per version of AMS.

On Windows, there are 3 ways that you can start/stop the AMS:
➤ using the Objectivity Network Services tool that is provided with Objectivity/DB
➤ using oostartams/oostopams
➤ using Windows Administrative Tools Services and selecting ooams-3

On UNIX, you start/stop the AMS using oostartams/oostopams.

How do I check if the AMS is running?

You can check whether AMS is running on a particular workstation by using oocheckams.

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