English Amiga Board - View Single Post - PFS vs SFS vs FFS

Toni Wilen · 17 January 2019, 19:37

IDE controller: Impossible (for filesystem alone) because normal driver API does not have any support for sending raw IDE commands to the drive. (EDIT: updated driver would be needed that supports trim via SCSI Direct and can translate it to correct raw IDE command)

SCSI controller: SCSI direct can be used but it would also require SCSI to IDE/SD/whatever adapter that also supports trim. (I don't know if any do)

EDIT: Filesystem support (and ignoring driver problems): It should be possible (but really needs full understanding of filesystem logic to implement it properly) but I am still not sure if it is that useful, amount of writes is relatively slow in normal Amiga use. It would also make use of recovery programs impossible.

17 January 2019, 19:37	#41
Toni Wilen WinUAE developer Join Date: Aug 2001 Location: Hämeenlinna/Finland Age: 49 Posts: 26,519	IDE controller: Impossible (for filesystem alone) because normal driver API does not have any support for sending raw IDE commands to the drive. (EDIT: updated driver would be needed that supports trim via SCSI Direct and can translate it to correct raw IDE command) SCSI controller: SCSI direct can be used but it would also require SCSI to IDE/SD/whatever adapter that also supports trim. (I don't know if any do) EDIT: Filesystem support (and ignoring driver problems): It should be possible (but really needs full understanding of filesystem logic to implement it properly) but I am still not sure if it is that useful, amount of writes is relatively slow in normal Amiga use. It would also make use of recovery programs impossible. Last edited by Toni Wilen; 17 January 2019 at 19:43.