Re: Another PowerHA Question

The tracking data is really only a list of 4K page addresses that have to be sent to the target. It is a finite amount of space that has sufficient room to hold all the addresses. So when you create the tracking space you do it once, and it's there. It won't grow unless you add storage to the system. Then it will grow enough to hold those addresses as well.

Since the system will only send the most recent memory pages, it does not need to keep the sequential data the way an application replication product does.

Jim Oberholtzer
Chief Technical Architect
Agile Technology Architects


On 5/22/2013 11:20 AM, Kirk Goins wrote:

With logical replication, when the link or target is down, you can watch
your disk space shrink and see the journals pile up.If need be you can save
and then delete journal receivers to prevent running out of disk until you
can get the link backup.

Now With PowerHA if replication is suspended with tracking, Can I manage
this tracking data in a similar way? What is really being tracked? I assume
it is more than just list of changed disk blocks.

Thanks

-- Kirk
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