mksysb backup failing with error /tmp/backupxxaaah8pqaa there is not enough space in file system

mksysb backup failing with error  /tmp/backupxxaaah8pqaa there is not enough space in file system

Solution:

Increaed /tmp by 1gb and performed health check of other file system like /, /home,/var ,/opt

Then executed vio backup and it's successful.

Thanks .