On Mon, 7 Sep 2009, Richard Elling wrote:
This is an article about the new TRIM command. It would be important for file systems which write their metadata to the same physical location or use a MRU replacement algorithm. But ZFS is copy-on-write, so the metadata is allocated from free space and ZFS is transactional, not directly MRU. It is
The purpose of the TRIM command is to allow the FLASH device to reclaim and erase storage at its leisure so that the writer does not need to wait for erasure once the device becomes full. Otherwise the FLASH device does not know when an area stops being used.
Bob -- Bob Friesenhahn bfrie...@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/ GraphicsMagick Maintainer, http://www.GraphicsMagick.org/ _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
