OPC mutually exclusive jobs



Ask queries about other IBM Tools like Tivoli, COBTEST, Fault Analyzer, z/OS File Manager, Workload Simulator, APA, SCLM, Merge & Migration Tools etc...

OPC mutually exclusive jobs

Postby santlou » Sat Aug 23, 2008 9:36 pm

Hi,

Does OPC support a specification of 'mutually exclusive' jobs? Here is what I want to do:

Job A and Job B have no relationships regarding dependencies. However, both jobs require access to the same Tape dataset. Usually both jobs are invoked at around the same time of day, which means that one of them will wait on contention for the tape dataset. Sometimes Job A starts first and grabs the tape file, but other times Job B starts first.
Both jobs are in the critical path for the batch cycle completion, so I don't really want to make Job A a dependency of Job B or vice versa. What I'd like to do is tell OPC that these jobs cannot run at the same time, so if Job B starts first, Job A will wait for Job B to finish, and if Job A start first, Job B will wait for Job A to finish.

Does OPC support this type of specification? I have several such contention issues in the batch cycle and I'd rather not start adding dependency specifications making one job wait on the other. Basically, sometimes Job B starts first and is completed before Job A and sometimes its the other way around. So I don't want to have either of these jobs specifically wait on the other one if the job can be completed before the other even starts. If I make Job B wait on Job A, then if Job B is ready to start and can be completed before Job A starts, Job B will be waiting for no reason.

Also, the dataset that these jobs need is on tape and cannot be put on disk for many reasons including available DASD and several other reasons, so moving the file to disk is not an option.

Thanks for any assistance...
santlou
 
Posts: 15
Joined: Sat Aug 23, 2008 8:06 pm
Has thanked: 0 time
Been thanked: 0 time

Re: OPC mutually exclusive jobs

 

Re: OPC mutually exclusive jobs

Postby dick scherrer » Sun Aug 24, 2008 3:45 am

Hello santlou and welcome to the forums,

To do what you want, you can define a "special resource".

This will allow you to "enqueue" on that resource and when something has it in use, others will have to wait.
Hope this helps,
d.sch.
User avatar
dick scherrer
Global moderator
 
Posts: 6304
Joined: Sat Jun 09, 2007 8:58 am
Has thanked: 3 times
Been thanked: 91 times

Re: OPC mutually exclusive jobs

Postby santlou » Sun Aug 24, 2008 8:58 am

Thanx...
I will look into that.

..santlou
santlou
 
Posts: 15
Joined: Sat Aug 23, 2008 8:06 pm
Has thanked: 0 time
Been thanked: 0 time

Re: OPC mutually exclusive jobs

Postby dick scherrer » Sun Aug 24, 2008 9:13 am

You're welcome - good luck :)

d
User avatar
dick scherrer
Global moderator
 
Posts: 6304
Joined: Sat Jun 09, 2007 8:58 am
Has thanked: 3 times
Been thanked: 91 times


Return to Other IBM Tools

 


  • Related topics
    Replies
    Views
    Last post