
Chapter 5. S/390 volume distribution 71
A discussion of simple Linux files versus raw devices appears in Chapter 2 of the Getting
Started publication and you should read that for a more complete discussion. For the present
discussion, we will simply note that the raw device interfaces are recommended for larger,
serious, and production FLEX-ES systems, while the use of simple Linux files is typically
confined to smaller, non-production, lightly-loaded, educational/demonstration systems.
FLEX-ES provides three utilities that are relevant for distributions: ckdconvaws, ckdbackup, and
ckdrestore. These are unique in that they work with standard ...