Originally Posted by hdonzis
Actually, there are some real benefits to the DB35 drives.
Perhaps you can dig into this more?
I read everything I found on that, and got the impression the alternate error correction modes need to be called by the appliance in question. Which lead me to believe they aren't utilized by Replays. My (unscientific) experience so far with the DB35 tends to back that up. Absolutely no benefit I can discern over the cloned 7200.8 replaced. Of course I went from 300 to 400, but the performance is definitely not *better* and I suspect it's off just a hair. But that could be explained by the size difference alone. Number of shows started out the same (perhaps 260 GB) since it's a patched exact clone. If it only comes into play with bad sectors, well I've never identified or suspected bad sector (issues) on any of these Seagates. But by that point I'd rather replace the drive.
The Seagate DB35 Series hard drive delivers the performance, power efficiency and reliability DVR manufacturers need to design superior products.
Well the 7200.3 (400) is using apparently more
power than the 7200.8 (300) in my 5 minute (unscientific) boot the replay with each (identically loaded) test. The specs seem to back that up.
The only theoretical 'power efficiency' the DB35 have over 7200.8 (I can see) is a max spin-up current of 2.0 amps as opposed to max of something like 2.5 amps. Perhaps they are identical in reality. But the larger capacity drives do use more.
The SV35 (250 GB) on the other hand, uses measurably less power (confirmed by my 5 minute boot/buffer/page-through-guides test, against original 7200.8 250 GB) so it should average a few watts cooler. And longer life/more reliable just by that metric alone. My initial impression is the (250 GB) SV35 has smoother performance than the (400 GB) 7200.3, but of course not a fair comparison, since the 400 DB35 has more content. And I really would expect some performance hit from the reduced seek wattage on the SV35, but so far in the Replay 5K I'm not identifying it. Bottom line is all these compatible Seagates seem to perform more than adequately.
One must temper expectations from the marketing hype. But if you can dig up evidence our Replays can utilize any
of the DynaPlay Technology™ *magic* I'd love to hear it.