Comment on Different "geometries" for same disk model?
taladar@sh.itjust.works 10 months ago
Maybe the larger disks have some sort of expected defective bits of the physical disks since it becomes increasingly difficult to produce flawless ones? Also, I am pretty sure ZFS didn’t even exist yet the last time anyone used cylinders/heads/sectors for anything. That is something from the parallel ATA era and not even close to the end of that.
Hopfgeist@feddit.de 10 months ago
Sure, SCSI disks will show their defective list (“primary defects”, as delivered by the factory, and grown defects, accumulated during use), and they all have a couple hundred primary defects. But I don’t see why that would affect the reported geometry, given that it is fictional, anway. And all disks have enough spare tracks to accommodate for the defects, and offer the specified full number of total sectors, even for long list of grown defects. Incidentally, all the 4TB disks are still “perfect” in that they have no grown defects.