the Informix password crack

the Informix password crack

I get some hash like:
username         sowainformix
salt             7307821250330563328
hashed_password  HaHvvzanjp_lPZgHLu0KHquN.Q4t98EF48csXk1QTJs
hash_type        SHA-256
updated
flags            2
min_change
max_change
inactive
ac_expire
who can tell me some infomation about the algorithm of Informix,that I should do the weak password check about some Informix device. thanks.