print_bignum1
print_bignum1("Data units read:", health->data_units_read, "", "B", 512000);
print_bignum1("Data units written:", health->data_units_written,
void print_bignum1(const char *, uint64_t v[2], const char *, const char *, long);
print_bignum1(title, v, suffix, NULL, 1);