Understanding z/OS PAS operations

First, the z/OS PAS tries to connect to the CAS. Then, if the CAS is available, the z/OS PAS brings up its data collectors, including the 

BMC AMI Ops Monitor for CMF

 Extractor, as soon as a connection is made. If the CAS is not available, the z/OS PAS starts the 

BMC AMI Ops Monitor for CMF

 Extractor only, and then tries 60 times to establish connection with the CAS, once every 5 seconds. If a connection is made during this time period, the other data collectors are started. If a connection is not made, you must restart the data collectors when the CAS is available by using a MODIFY command with DC=START specified (see Controlling-z-OS-PAS-operation for more information).

All data collectors terminate except the 

BMC AMI Ops Monitor for CMF

 Extractor; however, if you have the PGDDLAY Extractor control statement defined, this sampler goes into a wait state until the CAS returns and the data collectors are reinitialized. After the CAS is back up, to initialize any terminated data collectors and reconnect the PAS to the CAS, you can enter a MODIFY command for the PAS with DC=START specified. You do not have to bring the PAS down and then restart it again – you can reconnect the PAS dynamically and reinitialize the data collectors. The PGDDLAY sampler resumes operation, as well. At that time, you can use the 

BMC AMI Ops

 Selection Menu to re-attempt access to your 

BMC AMI Ops

 product.

Nothing. With the exception of the PGDDLAY extractor, after the z/OS PAS is initialized, the 

BMC AMI Ops Monitor for CMF

 Extractor remains available at all times, regardless of the status of the CAS or other data collectors in the z/OS PAS.

Yes. Use one of the following methods:

• Run two z/OS PASs on the same system. For more information about running multiple z/OS PASs, see Running-z-OS-PASs-concurrently.
• Run two Extractors in the same z/OS PAS by using the BMC AMI Ops Monitor for CMF modes, CPM and IPM. For more information about CPM and IPM modes, see BMC AMI Ops Monitor for CMF.

Not as long as the z/OS PAS itself is up and running. Even if the CAS or one of the other data collectors goes down, the Extractor continues to write SMF records.