Barium swallow is a dedicated test of the pharynx, oesophagus, and proximal stomach, and may be performed as a single or double contrast study.arium swallow is a dedicated test of the pharynx, oesophagus, and proximal stomach, and may be performed as a single or double contrast study.
up vote 9 down vote accepted. In Windows Azure Virtual Machine for Windows you can find drive C and D. Drive C is the boot OS disk and the size is actually the size of your VHD you have either uploaded or configured from the Gallery.
What is the difference between local disk C and local disk D. It depends. C could be a whole hard drive, and D a different hard drive, or they could both be on the same hard drive. The way to tell is look in disk management, and look at the disks, and see where the volumes(C and D) are. If they are on the same disk, and the disks dies, both C and D will be unavailable.