I have to migrate the data from a Splunk instance (Version 6.2.0) to an another one (Version 6.4.1). Thus, I was wondering if I had to upgrade the old Splunk instance first and then migrate it to the new one, or can I just copy the SPLUNK_HOME directory in the new instance and install the last version?
Regarding the upgrade, does the upgrade imply the loss of every Splunk's data?
Besides, does anybody know the process to upgrade Splunk Enterprise from a version to another one?
Thanks in advance for your advice.
Splunk upgrade just upgrades the binaries and libraries and does not touch your data. You can directly upgrade from your 6.2 version to 6.4
Please refer to the following links for detailed information
To migrate to new server
To upgrade new version