The things I'd pay most attention to would be all single threaded 4K, 32K, and 128K writes to the raw device. Maybe sure the SSD has a capacitor and enable the write cache on the device.
-r Le 5 juil. 09 à 12:06, James Lever a écrit :
On 04/07/2009, at 3:08 AM, Bob Friesenhahn wrote:It seems like you may have selected the wrong SSD product to use. There seems to be a huge variation in performance (and cost) with so-called "enterprise" SSDs. SSDs with capacitor-backed write caches seem to be fastest.Do you have any methods to "correctly" measure the performance of an SSD for the purpose of a slog and any information on others (other than anecdotal evidence)?cheers, James _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
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