EZT allocates and zeroes the disk at the beginning whereas thin provision neither allocates nor zeroes anything. Why does it not make any difference? My understanding is that, in a thin disk, everytime a new write operations occurs, it allocates the needed blocks and zeroes them before the write op. EZT does not do these operations because the disk is already allocated and zeroed. Is it right? In that case, it should have an impact on the performance.
↧