@Ana_11, I removed the tread below, but I want to clarify some points.
Your statement is based on R80.30 upgrade guide, quoting:
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Using the Pre-Upgrade Verifier
Important - This applies only when you upgrade from R77.30 (or lower) version to R80.30.
We recommend that you run the Pre-Upgrade Verifier (PUV) on the source Check Point computer before you upgrade. The Pre-Upgrade Verifier analyzes compatibility of the currently installed configuration with the version, to which you upgrade. It gives a report on the actions to take before and after the upgrade.
The Pre-Upgrade Verifier can only verify a management database that is intended for upgrade to a different major version (for example, from R77.xx to R80.30).
The Pre-Upgrade Verifier runs automatically during the upgrade process. You can also run it manually.
Run this command and use the applicable syntax based on the instructions on the screen:
[Expert@HostName:0]# ./pre_upgrade_verifier -h
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Note - This is required only when you upgrade from R77.30 (or lower) version to R80.30.
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These statements are about DB sanity, and they should be re-written. I have already reached out to the relevant team to review and correct them.
There are two points here:
1. When it comes to DB sanity, yes, it is vitally important to run verifier and fix MGMT DB issues before a major upgrade.
2. However, your general statement (I assume, based on the upgrade guide, not your fault) is incorrect. Verifier is run anyway before the upgrade event starts, minor or major, to verify and report ANY potential issues, not just DB ones. For example, lack of space.
It is a best practice to run verifier before any upgrade, minor or major, to make sure there are no surprises. It is much more economical than to unzip the whole upgrade package.
Here is the OK message from the verifier between R80.30 and R80.40:
This is a lab machine, and in the previous trial instead of that message I have had disk space error, before cleaning up. Can reproduce one for you, if you want proof 🙂