We have a 5-server environment (version 9.4M4, metadata server, two workspace servers, two midtier nodes) which need to get new IP addresses (due to, high level, new security requirements).  Nothing else about the servers needs to change at all: same server name, etc.   Has anyone dealt with anything like that?  This link suggests that we might be able to interpret the new IP range as a "DR" site which  would apparently just give some warnings in some logs, and no big deal. Granted, what if a DR situation actually occurs... could we restore backups to yet another IP range and still just get warnings?   Another angle is to plumb the servers for IP references in configs and mass change them all (something to try in a test environment)... or are the IP's baked into impossible-to-find metadata databases too?  (Aside: we are asking SAS directly too, but I'm always very interested in Community insights as well.) ... View more

This question pertains to a migration from SAS version 9.4M4 to 9.4M6.  We are planning a SAS migration to a different data center.  We would like to build up the new server stack and then cut over gradually.  Unfortunately we have a lot of metadata, and we're finding that when using the SAS Migration Tool (SMU), it only comes into play at install time on the target servers.  So if we install in advance of the cutover, the metadata of the new environment gradually grows stale as users continue to live in the old environment prior to cutover.   This suggests that we not build in advance: that we pick a weekend and migrate by shutting everything down in the source environment, running SMU there to collect everything, then build the target environment using SMU, and bringing everything back up on the target. We find that when trialing this process, it's challenging to fit in the space of a single weekend, given multiple servers involved and validation/testing steps to follow installation.   I was wondering how other have worked around this problem, or if the only resolution is to extend the weekend work window for "migration weekend"?  Insights appreciated. ... View more