Recently we are doing development for Pega Case based Archival Process for our Application's potential solution for Case Archival/Purge process. We have gone through all Pega provided articles to support our Dev work. But we are stuck with following questions for which we didn't get any information yet. So, would you please provide the answer for the following questions:

1. Can the Elastic Search be re-build in case if it is deleted or corrupted? If yes, then how does it impact the following:
   1. During the re-build of the previous index does it have any impact on ongoing Purge/Archive process?
   2. Does re-built index will have all the information about previously purged cases (purged from Pega Primary DB)?
2. Can there be any dedicated Elastic Search been set up just to hold the index information about Archive/Purge cases only? Or in other words can the default Elastic search be used for Live Case and data but has different elastic search for Purge/Archive Data?
3. What would be configuration for Elastic Search if system has to maintain the index information for 6-7 years archived data for any given Case Types? As at the present our App uses internal elastic search set up which needs some space on Pega- Server/Node directory.