A method includes receiving, by a storage unit of a storage network, a check request message from a computing device of the storage network, where the check request message includes a group of slice names of a plurality of sets of slice names associated with a plurality of sets of encoded data slices, where a plurality of data segments are dispersed storage error encoded into the plurality of sets of encoded data slices. The method further includes determining, by the storage unit, whether an error condition exists for an encoded data slice associated with the group of slice names. When no, the method includes sending, by the storage unit, a check response message to the computing device, where the check response message includes a group of slice information regarding the group of slice names. When yes, the method includes disregarding sending the check response message.