On 15/12/17 00:31, Felix Miata wrote:
Dave Plater composed on 2017-12-14 17:53 (UTC+0200):
Not sure but I think that some large disks have physical sectors of 4096 bytes.
Most (if not all) >500GB made in the past ~6 years have 4Kb physical sectors: <https://www.seagate.com/tech-insights/advanced-format-4k-sector-hard-drives-master-ti/>
Drifting off topic (if not more here), while most drives had a compatibility mode, many newer drives do not. If your drive ONLY supports 4K sectors, and your fdisk or gpt or whatever has an "off-by-one" specifying the partition size in 512B sectors, then this can cripple disk access speeds. (I think I've explained it right - but it's definitely an "off by one" problem, and if your disk performance is awful, that could be why) Cheers, Wol -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org