Do you want to retrieve data from missing volume on Mac ? The Mac drive must be containing different volumes that are used for storing different types of files. You can manage the existing volumes and create new ones by using the disk utility. But there can be certain mishaps while creating a partition or merging two of them and the volume go missing so as the data stored in it. You can try to see if the disk utility detects it and then you can try to fix it and retrieve data from missing volume. If the volume is not found then you will have to format all the drive and then you can use the time machine backup to retrieve data from missing volume. But when the time machine is not working then you can use the Mac data recovery software which will restore the data back in the newly created volume. You need to scan the drive which gives a list of files which when selected are recovered. The software efficiently retrieve data from missing volume without any hassle. So download the software now and use it.