For a root device it doesn't matter that much. You're not going to be writing to the device at a high data rate so write/erase cycles don't factor much (MLC can sustain about a factor of 10 more). With MLC you'll get 2-4x the capacity for the same price, but again that doesn't matter much for a root device. Performance is typically a bit better with SLC -- especially on the write side -- but it's not such a huge difference.
The reason you'd use a flash SSD for a boot device is power (with maybe a dash of performance), and either SLC or MLC will do just fine. Adam On Sep 24, 2008, at 11:41 AM, Erik Trimble wrote: > I was under the impression that MLC is the preferred type of SSD, > but I > want to prevent myself from having a think-o. > > > I'm looking to get (2) SSD to use as my boot drive. It looks like I > can > get 32GB SSDs composed of either SLC or MLC for roughly equal pricing. > Which would be the better technology? (I'll worry about rated access > times/etc of the drives, I'm just wondering about general tech for > an OS > boot drive usage...) > > > > -- > Erik Trimble > Java System Support > Mailstop: usca22-123 > Phone: x17195 > Santa Clara, CA > Timezone: US/Pacific (GMT-0800) > > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss -- Adam Leventhal, Fishworks http://blogs.sun.com/ahl _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
