As far as I know almost all HDD rotate at constant angular velocity. And get written from outside to the inside. And the outer blocks give approximately double the sequential read speed than the inner ones.
I am using Linux and ZFS with HDDs. I know that there is a way to advise Linux about certain file access patters so it can optimize while writing (e.g. expect random reads, expect this not to be read soon bypassing caches) etc.
Is there any way to advise ZFS on Linux to, if possible, prefer writing a file to the slowest part of the HDDs?
This should be prossible with partitioning, but I don’t think this is the dogmatic way on ZFS, right?