Following command can give you information on translations on firewall:
show xlate detail
This command displays the following information:
?{ICMP|TCP|UDP} PAT from interface:real-address/real-port to interface:mapped-address/mapped-port flags translation-flags
?NAT from interface:real-address/real-port to interface:mapped-address/mapped-port flags translation-flags
Dont know what you are trying to achieve by taking backup of tranlation slots
Regards
Rohit