On Mon, Oct 10, 2016 at 08:07:53AM -0400, Austin S. Hemmelgarn wrote: > On 2016-10-09 19:12, Charles Zeitler wrote: > >Is there any advantage to using NAS drives > >under RAID levels, as oppposed to regular > >'desktop' drives for BTRFS? [...] > So, as for what you should use in a RAID array, here's my specific advice: > 1. Don't worry about enterprise drives unless you've already got a system > that has them. They're insanely overpriced for relatively minimal benefit > when compared to NAS drives. > 2. If you can afford NAS drives, use them, they'll get you the best > combination of energy efficiency, performance, and error recovery. > 3. If you can't get NAS drives, most desktop drives work fine, but you will > want to bump up the scsi_command_timer attribute in the kernel for them (200 > seconds is reasonable, just make sure you have good cables and a good > storage controller). > 4. Avoid WD Green drives, without special effort, they will get worse > performance and have shorter lifetimes than any other hard disk I've ever > seen. > 5. Generally avoid drives with a capacity over 1TB from manufacturers other > than WD, HGST, and Seagate, most of them are not particularly good quality > (especially if it's an odd non-power-of-two size like 5TB).
+1 ! Additionally, is it still the case that it is generally safer to buy the largest capacity disks offered by the previous generation of technology rather than the current largest capacity? eg: right now that would be 4TB or 6TB, and not 8TB or 10TB. Cheers, Nicholas -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
