Hi. I have a ZFS pool of NVMe SSDs which is used as a "scratchpad" in a long running heavy IO multi-process task.
Although prefixed ZFS I'd like to know the answer for UFS, too since I've been experimenting with filesystems and UFS is still my preferred option. So far ZFS perf for task at hand hasn't impressed, sadly.
*EDIT* When I say "scratchpad" I do actually mean that. It is perfectly ok to have those drives completely wiped before every batch if that helps perf.
Thank you
vfs.zfs.trim.enabled=1
however I wonder given the peculiar nature of the task that basically writes all over non stop for hours if shouldn't force TRIM of each drive in a pool after these tasks finish, before starting a new batch. Should I? If so, then with what command. I thought I'd seen zpool trim
mentioned on the interwebs but it isn't in man. fsck_ffs -E
but on zfs???Although prefixed ZFS I'd like to know the answer for UFS, too since I've been experimenting with filesystems and UFS is still my preferred option. So far ZFS perf for task at hand hasn't impressed, sadly.
*EDIT* When I say "scratchpad" I do actually mean that. It is perfectly ok to have those drives completely wiped before every batch if that helps perf.
Thank you