Thanks. Helpful information in those. I will likely have to redo this drive to match the settings for page boundaries, which I expected.
One question, though: numerous people point out that only FFS can handle block sizes over 512 bytes, yet documentation for SFS and PFS3 both indicate the ability to handle the 4k block sizes.
I was a bit puzzled about that myself, however it might be SFS2 only supports 512 byte blocks. I'm pretty sure the old SFS supports others as I remember seeing a table showing what the maximum volume size was with different block sizes under SFS.
PFS isn't an included OS4 filesystem (and doesn't even have an OS4 native version AFAIK) so I doubt that is included in the statement, given that the discussion was OS4 focussed.