Probably an obvious question but the documentation doesn't seem to reference this directly...
If I have 2 x M-100s in HA, by default they are in a state where the primary is listed within the "Managed Collectors". From what I understand the logs are not sync'd between the primary and secondary - only the configuration aspect of Panorama. With that in mind my assumption is that the secondary can act as it's own collector while operating in secondary mode. Is this a true statement?
If that's the operational mode given this setup I'm going to also assume that, from either M-100 we should be able to leverage reporting which will correlate across both logging stores between the pair?
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Correct, the secondary can act as an independent collector and logs can be forwarded directly to the M-100 from 5.0 FWs via the Collector Group > Log Forwarding configuration.
Correct, either M-100 (primary or secondary) can be used to run reports or view logs which will be correlated across both Panorama HA pairs.
To make this work you will need to configure the primary and secondary M-100 as Managed Collectors on the active box so that the config has both M-100s referenced. This will sync to both devices on Panorama commit and then you can add the secondary collector to a new independent log collector group, do a Panorama commit, and then a Collector Group commit. This should result in the configuration you desire.
Note: You will also need to configure the Log Forwarding tab inside the Collector Groups to setup which FWs you want forwarding to the primary vs. secondary M-100.
Is there any reason why both of those particular managed collectors need to be in separate log collector groups? Per the documentation it states that it's not recommended to have the M-100s in groups exceeding 4TB, however since the logs can't automatically be sent to either of the two in the group dynamically I'm not sure why it would matter. Is there a specific technical reason that this is the case or is it just a recommendation not to confuse the fact that if one of those M-100 collectors would go down that the firewalls sending logs to that particular unit wouldn't automatically switch over?
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