mIsArray
#define mIsArray(vdev_type) ((vdev_type)>VD_PARTITION)
#define mIsArray(pVDev) (pVDev->VDeviceType>VD_SINGLE_DISK)
#define mIsArray(pVDev) 0
#define mIsArray(vdev_type) ((vdev_type)>VD_PARTITION)
#define mIsArray(vdev_type) ((vdev_type)>VD_PARTITION)