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From a pure replication standpoint SAN and Internal disk are identical for PowerHA. Operating system, user profiles, device descriptions and things of that nature (Think 'Q'libraries) live in the system ASP and they are not replicated at the disk level.

As Jim mentioned many of the key objects here get replicated through the Admin domain. These include:
User Profiles
Device Descriptions
Network attributes
System Values
Job Descriptions
and more. (even Token Ring Lines. :-) :-) )

These are selective however. You may choose to replicate all user profiles EXCEPT admin accounts for example. You may do some system values but not others. Etc.

Your data, programs, queues, and all user objects including the IFS live in the iASP. THose are replicated. Whether it's IBM i or the SAN doesn't matter to anyone on IBM i. Only us Admins care at that point.


- Larry "DrFranken" Bolhuis

www.Frankeni.com
www.iDevCloud.com - Personal Development IBM i timeshare service.
www.iInTheCloud.com - Commercial IBM i Cloud Hosting.

On 9/9/2016 9:19 AM, Rob Berendt wrote:
Do you pick and choose by lpar or by the whole Power system?

With internal disk does it still do everything? By this I mean IBM i user
id's, and pretty much everything one does with a Replication solution. You
don't have a situation where you store your OS in one ASP and your data in
another ASP and only the data ASP gets replicated, right?

And let's say the two machines are about 120 miles apart, like Grand
Rapids MI to Kendallville IN.


Rob Berendt


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