extern int get_dev_size(int fd, char *dname, unsigned long long *sizep);
extern void get_one_disk(int mdfd, mdu_array_info_t *ainf,
mdu_disk_info_t *disk);
extern int get_dev_size(int fd, char *dname, unsigned long long *sizep);
extern void get_one_disk(int mdfd, mdu_array_info_t *ainf,
mdu_disk_info_t *disk);