http://aix4admins.blogspot.co.uk/2012/05/kdb-kdb-kernel-debugger-and-kdb-command.htmlQuestion: The URL writes about local disks. But How can I check it for SAN disks? Using AIX 6. This setting would automatically restore the failed paths after a SAN issue. 
How to check hcheck_interval value of a SAN disk
aix;disk