On 9/20/19 9:55 AM, Eric Olsen wrote: > Many could argue against this, but I buy used drives from TAMS > olutions for my NAS. They're cheap, I get them today, and since > they're used they're more likely to be different levels of used so > they're less likely to die around the same time. Interesting!
> All spinning disks' RPM speeds are more-or-less "roughly" that number. So > one might be 7220 RPMs, another 7180 RPMs. WD Reds are the ones they tested > to be as close to 7200 as possible (they have a tighter window of what's OK) Makes sense, thanks. Looks like the Red Pro are 7200 and the Red are 5400. 5 year warranties (remember when that was standard!). Although the warranty honestly doesn't really matter to me. >> Seems like everything is 5400 rpm. Does this even matter? > > I'm trying to remember what I read in the past, it was either simply that > the 7200 disks would perform slower because all drives in the RAID need to > be roughly the same speed, or it could have been that there's a chance of > problems due to the RAID trying to handle different speeds. Pretty sure > it's the former. I do know my Netgear NAS will work with both, but whines > at me when I add 5400 RPM drives alongside 7200 RPM ones. I'm using software RAID so I think Linux will happily work with whatever it has with only some degradation of performance during the writes. Looks like many of these 4 TB drives have 4 platters on them, which will reduce seek time a bit even at 5400 rpm. I imagine the drive is smart enough to strip its data across the platters for faster reads and writes too. Thanks all! /* PLUG: http://plug.org, #utah on irc.freenode.net Unsubscribe: http://plug.org/mailman/options/plug Don't fear the penguin. */
