Once the image is active(from infrasture/os related perpective ), the next task was to make SAS on that system up
So I used utility provided by SAS : Change host name utility in the SAS deployement Manager
And changed the hostname in my SAS files (configuration,xml,.bat etc. ) from box01 to boxd01.
once this process is complete i followed the additional manual steps mentioned in the changhostnamesummary.htm file as well had done a thorow search on my filesystem(windows os) to find old host name references and changed them manually. (Except the log file, initial installation configuration logs,reports.)
Once this was done , i started my metadata server and ta da.. it was up and now now running on boxd01 .
Next step was doing the same process of changing host name on compute and web tier and follow the manual steps.
there were few changes like changing the hostname in windows regisrty files for LSF ,Process Manager as well.
Note : if the system had additional ObjectSpawner , connect spawner etc. configured then one must reconfigure them in order for them to work.
So once my boxd01 was ready and all services were up, I repointed my DB connection to new DB's and fired SAS sessions and now i have
two boxes: box01 and boxd01 with same SAS configuration.
We have run all possible SAS jobs's that we have on box01 on the new box, including the extracts via powershells,python,curl jobs and all seem to be working as expected.
Thus now my box boxd01 is now ready for upgrade to new relaease of SAS and our day to day activities won't be affected.
To Summarise Step 1: The live system(box01) was paused and a full snapshot backup was taken step 2: this Snapshot was installed on a new box : the infrasture/os team made sure that except the host name all settings from network, security, group policies etc. were exactly same as box01 Step3: Run the change host name utility on each machine (meta->compute->web) and perform the manual steps as indicated in changhostnamesummary.htm file Step 4:Start SAS , and check logs for errors warnings, rectify and restart step5: run jobs , flows , stp's , view applciations and perform day to day operations. Step 6: IF step 4 &5 go well, then a new box is ready for upgrade with same level of settings as actual box, without hampering the day to day work.
My new box is working very well is after a rigourous testing on the system ,we are doing upgrade.
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