Q

Quiesce the system

What is the best way to quiesce the system when doing a SWA of libraries?

It depends on what libraries you want to save. You want to quiesce the system to a point where there is no activity against the libraries you want to save.

For example, on my system I need to quiesce to the point where all DDM, ODBC, MQ Series, QBATCH and QINTER jobs are inactive because all of these methods are used to access our production Customer Information System libraries. This involves ending subsystems and certain TCP servers.

To identify what needs to be ended, check the locks on your application libraries (WRKOBJLCK libname *LIB). All the jobs listed will need to be ended for a few minutes while you obtain a checkpoint for the SWA.

In summary –

1. End all processes using the libraries you want to save.
2. Prevent any new access requests from starting until after a checkpoint is reached.
3. Start your SWA save.
4. When the checkpoint is reached, restart the subsystems and servers you ended in step 1.

==================================
MORE INFORMATION ON THIS TOPIC
==================================

Ask the Experts yourself: Our backup & recovery gurus are waiting to answer your questions.

Search400.com's targeted search engine: Get relevant information on backup & recovery.

Check out this Search400.com Featured Topic on backup & recovery.


This was first published in November 2003

Dig deeper on Data backup, storage and retrieval on iSeries

Have a question for an expert?

Please add a title for your question

Get answers from a TechTarget expert on whatever's puzzling you.

You will be able to add details on the next page.

0 comments

Oldest 

Forgot Password?

No problem! Submit your e-mail address below. We'll send you an email containing your password.

Your password has been sent to:

-ADS BY GOOGLE

SearchEnterpriseLinux

SearchDataCenter

Close