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 <Desired filename>
(Cisco Controller) >transfer upload mode tftp
(Cisco Controller) >transfer upload serverip <ip-of-tftp-server>
(Cisco Controller) >transfer upload peer-start
Mode............................................. TFTP
TFTP Server IP................................... Xx.Xx.Xx.Xx
TFTP Path........................................ ./
TFTP Filename.................................... <Desired filename>
Data Type........................................ Crash File
Are you sure you want to start upload from standby? (y/N) y
Standby - TFTP Crash File transfer starting.
Standby - File transfer operation completed successfully.
From Gui:
Navigate to Commands > Redundancy > Upload Peer
Similarly you can transfer configuration & coredump from standby WLC.