>>>If there is no backing file or snapshot you still need to fill the>>>cluster >>>with zeroes, and that's going to be slower with larger>>>clusters.>>>> >>>If not fill zeroes and only write guest data ,what`s wrong could>> >>>happen ?>The following could happen:> 1) Guest reads at offset [0, 4k] -> >>>there's only zeroes> 2) Guest writes at offset [8k, 16k]> 3) Guest reads at >>>offset [0, 4k] -> there's something else now>Berto
Why could guest read the area at offset [0, 4k] has not be writen yet ? Yang.bin
