On Thu, Mar 28, 2024 at 04:39:01PM -0400, Stefan Hajnoczi wrote: > In the block device world there are similar concepts to holes: > - SCSI has Logical Block Provisioning where the "mapped" state would be > considered data and other states would be considered holes.
But for SCSI (and ATA and NVMe) unmapped/delallocated/etc blocks do not have to return zeroes. They could also return some other initialization pattern pattern. So they are (unfortunately) not a 1:1 mapping to holes in sparse files.
