On 09/01/2010 01:56 PM, Nick Schmalenberger wrote: > I've often heard that the highest capacity drives available > usually have the most platters and so are less reliable because > of more moving parts
Sort of. The parts of a multiple platter drive are bigger and heavier than those of a single platter drive. But there's the same number of them. So there's basically the moving parts are 1-N platters, 1 motor, 1 actuator, and one head assembly. >, and they are more expensive. I wish newegg > would list the number of platters a drive has I don't see why people would care, nor have I seen any difference in reliability. You are assuming that there's constant engineering and instead I'll claim that disk companies put in enough engineering to maximize profit... this includes being reliable enough to protect their hard won reputation. So yes a 5 platter drive has additional engineering... or reduced performance goals, but the same reliability goal. >, supposedly 4 or 5 > is alot and 2 or 3 is a good amount. Sometimes you can find out > from other sites like http://www.storagereview.com/ and > http://www.redhill.net.au/ also has a lot of cool info about hard > drives. The google paper analyzed 1000s of drives and I don't recall any correlation between platters and reliability. Pretty much all brands have cyclic reliability. Not sure if it's random chance, or some kind of build the brand reputation, then sell substandard drives to extract profit from the reputation. In any case maxtor used to be great... then not. IBM used to be great... then not. Seagate used to be great... then not. At least for now it seems like WD is pretty good. I've been using quite a few lately (around 100) without problem. If you want a 2TB for backup purposes I'd consider: http://www.newegg.com/Product/Product.aspx?Item=N82E16822136344 It has 391 reviews with an average rating of 4 of 5 stars. That's pretty good, especially since it seems like people are 10x as likely to fill out a review for a bad drive as they are when they expect and receive a reliable drive. I've seen seagate (which hit bottom about 6 months or so ago) with much worse reviews, but they seem to be on the road to recovery, for instance (286 reviews 3 stars) http://www.newegg.com/Product/Product.aspx?Item=N82E16822148413 I know samsung has some major issues. The drives tended to be much heavier and much more fragile as they were working the kinks out of their new glass/ceramic platters. Looks like they have gotten better though, the reviews look similar to WD (4 stars 279 reviews): http://www.newegg.com/Product/Product.aspx?Item=N82E16822152202 So currenty I'd rate WD as the more conservative bet, and seagate as the one that is likely cheaper and likely to be fine as well. Can't really comment too much on samsung because I haven't bought any recently. With backups the more copies the better. So if you can afford 2 1TB drives instead of 1 2TB you might be better off (depending on how much you need to backup). I'm particularly happy with a portable drive I recently bought: http://www.newegg.com/Product/Product.aspx?Item=N82E16822136477 I expect 2.5" drives designed for laptops to be a bit better in shock resistance and to be designed for an increased number of start/stop cycles (I.e. a laptop with aggressive power conservation). It's very quiet, rather small (fits in a shirt pocket), sleeps when not in use (automatically). The reviews are 3 stars out of 5, but that seems to be mostly related to some crapware that comes preinstalled but is removable. I've seen it on sale for $99, and was around that on sale at costco recently (which is where I bought it). All good options, I find it kind of shocking how reliable drives are these days. _______________________________________________ vox-tech mailing list [email protected] http://lists.lugod.org/mailman/listinfo/vox-tech
