Upgrading refers
to updating SAS software and the associated metadata and configuration.
For SAS Micro Analytic Service, it specifically means updating the
software from SAS Micro Analytic Service 1.2 or 1.3 to 2.2. It is
possible to upgrade the software and run on the same hardware deployment.
By contrast, migration is
a process in which your SAS content and configuration from an earlier
SAS release is upgraded to run in a later SAS release. When performed
successfully, migration attempts to preserve as much of your current
content and configuration as possible, reduce the number of manual
migration tasks, and minimize system downtime.
The modules that are
deployed in SAS Micro Analytic Service are held in the GemFire cache
persistence. Consequently, any upgrade or migration process must be
preceded by backing up the stores as explained in
Backup and Restore.When the software is
upgraded, it is possible to continue to use the same GemFire storage
files. If these files have been deleted, they can be restored from
a last known good backup.
If the source and target
environments are different, in terms of hardware, topology, platform,
and so on, all the modules that are deployed must be redeployed. For
specific REST API calls to retrieve and repost modules, see
Promotion.