QUOTE(Moogle Stiltzkin @ Aug 24 2015, 12:17 AM)
what i am not sure is about HAMR performance. will it end up just being another shingle hdd with good reads but not good constant writes. basically just meant for archiving purposes (e.g. videos, music, documents etc etc...)rather than for running your applications directly from (especially if it's something that runs constantly while in use like torrent client for example).
but then again for high capacity, people don't really expect performance, which they already rely on ssds for OS, games, apps... so i think the status quo will stay the same.
and yes i do think that optane ssd has a good chance to trump nand ssd because of the endurance, performance, storage capacity, the process to make is not too expensive (according to sources they speculate pricing to be somewhere between ddr4 and nand pricing. though with scale it might get cheaper).
nand recent developments are increasing the capacity size via 3d-nand, and other methods to cram in more storage space. the only way nand ssd's will still be relevant once optane comes out, is if they can produce nand ssds with high capacities and cheaper. otherwise people will just pass that over and go with octane.
then again like how people would for sure buy 1 single ssd for the os rather than hdd, people may now do the same once octane comes out. so nand ssd will have to take the place of what mechanical hdd was in that sense.
mechanical hdds seems like hamr is the next new thing after helium hdds, and shingle drives to renew the mech hdd platform. they too will be very reliant on having more space on the cheap to stay in the game.
but if you ask me, i think once nand ssds get to around 4, 6 or even 8 tb each, and cheaply, people will just get those and pop them into a NAS and use for storage. but the only downside is, they need to keep the NAS 24/7 operational, or at least scheduled to be on once every week because it was found that nand ssds begin to lose data if left without power over a few months or so. also make sure you only use ssds with some form of protection from sudden power loss, otherwise you are screwed down the line.
anyway about HAMR
https://en.wikipedia.org/wiki/Heat-assisted...netic_recordingFor HAMR performance, I think the same like you, but if it is like a read-oriented drive, then I guess it can hardly pleases the crowd, but since it is aimed at enterprise at the moment, i think their endurance and reliability can be accounted for. But all these will only happen somewhere in 2018 according to kitguru, inbetween are some test production and prototypes, so still time to perfect the next drive.
Yea, I also agree on the paradigm that like how mechanical drive has shifted to secondary role as storage while faster NAND SSD would take the spotlight in running OSes and I/O intensive programs. The same would highly be happening when Optane is released, but I think unless the price is right, I doubt they would displace NAND so fast especially right now 3D V-NAND is ramping in production with Intel/ Micron, Toshiba/ Sandisk all disclosed their plans with 3D V-NAND.
Regarding the NAND SSD as NAS, I think the issue with them beginning to lose data if left without power over a few months is highly dependent on the temperature the drives are kept in. If i am not mistaken, JEDEC has outlined a few classes or minimum requirements in order for the NAND SSDs to be able to be sold. There are a few operating temperature ranges (classes) which would require the NAND SSD to hold their data (data retention) for a determined duration and if they passes those regulations, only then they are allowed to be sold.
saucejust my 2cents
This post has been edited by rurushu: Aug 24 2015, 11:05 PM