Halon is old tech. I believe the EPA scuttled halon as an allowed suppression chemical in the late 90s, but I could be off by a decade.
FE13 and newer FE25 are the standards for data centers, as they’re non-conductive and server/switching equipment will be unharmed when it’s deployed.
And obviously with sprinklers still being used as a last resort, unless this data center was not equipped with redundant or failover fire suppression (which I highly doubt), a failure of multiple systems is so unlikely as to be improbable and difficult to comprehend.
Firstly, halon 1211 is MILES better than the named replacements that you mentioned. Just look at the fire suppression numbers.
Second, this is Argentina, not the epa swamp that is the new America, or even the socialist states of Europe.
The rest of the world uses halon 1211 and be damned to the miniscule ozone depletion compared to a roaring fire releasing God knows what.
Also, you can buy halon w/1211 online, just nowhere will recharge it for you.