I support this answer. If you plugged your WLC with all ports on LAG, what are you exactly load balancing ? Nothing will be faster by splitting APs between the 2 WLCs.
In case you anyway split the APs between the 2 WLCs, don't go salt 'n pepper (i.e. if you have 2 APs in a corridor, having them on a different wlc) because that means that every roaming between APs will be inter-WLC roaming. Overhead for nothing. It's best to cut your building in 2 and one are is on wlc1 and the other on wlc2.
While inter-WLC roaming usually works fine and should not cause trouble, it's overhead to go for that while you can have all APs on 1 WLC.
Transferring Crash file from standby: Login to the Active WLC in HA.
From CLI: (Cisco Controller) >transfer upload datatype crash (Cisco
Controller) >transfer upload filename (Cisco
Controller) >transfer upload mode tftp (Cisco Controller) >transfer
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