On 08/22/2012 04:55 PM, levin li wrote: > +static int read_vdi_copies(uint64_t oid) ->read_vdi_copy_number(). > +#define SD_GET_VDIS_NONE 0 > +#define SD_GET_VDIS_BEGIN 1 > +#define SD_GET_VDIS_WAITING 2 Do we really need these state? Thanks, Yuan