Rich Freeman wrote: > On Thu, Nov 14, 2024 at 3:33 PM Dale <rdalek1...@gmail.com> wrote: >> >> I've had a Seagate, a Maxtor from way back and a Western Digital go bad. >> This is one reason I don't knock any drive maker. Any of them can produce a >> bad drive. > ++ > > All the consumer drive manufacturers are in a super-price-conscious > market. For the most part their drives work as advertised, and > basically all of them have made a model with an abysmal failure rate > at some point. I think Backblaze still publishes their stats and I > don't think any manufacturer stood out when it comes to these cheaper > consumer drives. The enterprise stuff probably is more reliable, but > for HDD I don't think it is worth it - just use RAID. > > I've personally been trying to shift towards solid state. Granted, it > is about double the price of large 5400RPM drives, but the performance > is incomparable. I've also been moving more towards used enterprise > drives with PLP/etc and where I can find the drive endurance info on > the ebay listing. You can typically pay about $50/TB for an > enterprise SSD - either SATA or NVMe. You'll pay a bit more if you > want a high capacity drive (U.2 16+TB or whatever). That's in part > because I've been shifting to Ceph which is pretty IOPS-sensitive. > However, it is nice that when I add/replace a drive the cluster > rebuilds in an hour at most with kinda shocking network IO. > > I'll use cheap consumer SATA/M.2 SSDs for OS drives that are easily > reimaged. I'll use higher performance M.2 for gaming rigs (mostly > read-oriented), and back it up. Be aware that the consumer write > benchmarks only work for short bursts and fall to a fraction of the > advertisement for sustained writes - the enterprise write benchmarks > reflect sustained writes and you can run at that speed until the drive > dies. >
The biggest downside to the large drives available now, even if SMART tells you a drive is failing, you likely won't have time to copy the data over to a new drive before it fails. On a 18TB drive, using pvmove, it can take a long time to move data. I think the last time I did it, it took like two days. Usually SMART is more like a 24 hour warning. Of course with some failures, you get no warning at all. SMART can't detect all modes of failure. Wol has a good point too. What they trying to do is compete with SSD if they can. SSD, NVME and such are pricey if you need to store bulk amounts of data. I don't even want to think what it would cost to put all my 100TBs or so on SSD or NVME drives. WOW!!! Dale :-) :-)
