On Fri 10 Apr 2020 11:29:59 AM CEST, Vladimir Sementsov-Ogievskiy wrote: >> Hmm - raw external files are incompatible with backing files. Should >> we also document that extended L2 entries are incompatible with raw >> external files? (The text here reminded me about it, but it would be >> the text earlier at the incompatible feature bits that we edit if we >> want that additional restriction; compare to the restriction in the >> autoclear bit 1). After all, when raw external file is enabled, the >> entire image is allocated, at which point subclusters don't make much >> sense. > It still may cache information about zeroed subclusters: gives more > detailed block-status. But we should mention somehow external > files. Hm. not only for raw external files, but it is documented that > cluster can't be unallocated when an external data file is used.
What do you mean by "cluster can't be unallocated" ? Berto