ct1478 Posted November 29, 2013 Share Posted November 29, 2013 I currently have 2 unraid servers setup, server 1 is comprised of a mixture of 2,3, and 4tb drives, the 2 and 3tb drives are 2 WD Blacks, 1 Seagate 2tb, 2 Hitachi 4tb, and 17 Hitachi older drives. The 4tb drives are Hitachi 5 platter drives, all drives are 7200 rpm. Server 2 is comprised of 17 3tb Seagate ST3000DM001's. I am out of room on server 1 and getting close on server 2, I am looking to replace the older drives on server 1 and add more to server 2. I am looking at the new Seagate NAS drives for both servers, my question is how much performance will I loose by going with these 5900 rpm drives vs 7200? Link to comment
garycase Posted November 29, 2013 Share Posted November 29, 2013 On Server #1 you'll probably not notice any performance impact => if anything, it'll probably be BETTER. That's because the Seagate 4TB NAS units are all 1TB/platter drives -- with the improved areal density, the data transfer rate at 5900rpm is as good or better than 7200rpm drives with lower platter densities. If you're doing transational processing, you'll see a bit of a hit, since the access times are a bit longer than with 7200rpm units; but for typical UnRAID use I'd expect either no impact or a slight improvement. On Server #2 it's a different story -- you already have 1TB/platter drives there, so moving to 5900rpm drives will be a small reduction in performance. I do NOT, however, think the difference will be noticeable for most applications => the most notable difference will probably be slightly longer parity check times. Link to comment
ct1478 Posted November 30, 2013 Author Share Posted November 30, 2013 Thank's for the info. Link to comment
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