> So why buy SSD for ZIL at all? For the record, not all SSDs "ignore cache flushes". There are at least two SSDs sold today that guarantee synchronous write semantics; the Sun/Oracle LogZilla and the DDRdrive X1. Also, I believe it is more accurate to describe the root cause as not power protecting on-board volatile caches. As the X25-E does implement the ATA FLUSH CACHE command, but does not have the required power protection to avoid transaction (data) loss.
Best regards, Christopher George Founder/CTO www.ddrdrive.com -- This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
