Seems like a prime case for using a (bar/line/etc) graph to show the trend. I'm strangely disappointed in not seeing one.
SSD Prices in a Free Fall
31–40 of 336 posts
Re: SSD Prices in a Free Fall
#32Is the hdd demise indeed expected so quickly?
SSDs need to be powered up fairly often to maintain data integrity. So, they're great for the drives in computers, but for external or backup drives--which might only be powered up occasionally, spinning magnetic disks will still be a better choice for a while, it seems. edit: maybe not. Bringing this article up from samcheng's post below: http://www.anandtech.com/show/9248/the-truth-about-ssd-data-...
How do SSDs refresh their cells? Is that just a normal write as with DRAM?
Wonder if you can refresh SSDs without having that go towards the write counter.
Re: SSD Prices in a Free Fall
#33The article predicts that SSD prices will fall from 30c/GB to under 5c/GB in 18 months. This seems like a case of citation needed.
Can you cite predictions?
Re: SSD Prices in a Free Fall
#34SSD technology still has a reliability hurdle, you can nuke one in a month if you write to it constantly. Spinning media has much longer read/write durability. Until there is parity its still a bit of an arms race for capacity. Hybrid drives are pretty awful so I don't think they'll stick around. I could see Hierarchical Storage Management make a comeback and an entry to the consumer space, but thats been esoteric at…
Do they? The article specifically says otherwise and links to this:
http://itknowledgeexchange.techtarget.com/storage-soup/netap...
It also mentions that the 3D NAND process dramatically improves matters over previous tech.
I'm not saying you're wrong, but it's weird that you don't acknowledge that the article addresses your point.
Re: SSD Prices in a Free Fall
#35In a side-note in the article, the author mentions that Amazon Glacier runs on tape. Although I'm not sure Amazon officially explained the technology, I heard (and read on Wikipedia) that they store data on conventional HDDs, that are however kept "offline". Has anyone here some more knowledge about that?
Pretty sure Amazon said publicly that they are not using tape for Glacier, I can't find the source except this second hand one:
https://storagemojo.com/2014/04/25/amazons-glacier-secret-bd...
Re: SSD Prices in a Free Fall
#36Cheapest 1 TB SSD on Amazon: $350
Cheapest 1 TB HDD on Amazon: $40
Expecting a 10x drop in prices in 1 year is ludicrous. Even if the prices follow a pseudo Moore's law and fall by half every 18 months, you're looking at at least 5 years before they reach parity. And in the meantimg HDDs would have gotten cheaper; so expect even more time for parity.
In other words: ain't happenin' in 2016.
Re: SSD Prices in a Free Fall
#37Is keeping a SSD powered on enough to prevent bit rot?
It should have no impact. It really is about write capacity. The little cells can only handle being changed so many times before they wear out. The wearing is a chemical/semi-conductor type problem. It's not like DRAM where keeping power applied keeps the cells "fresh" (and in DRAM it's done literally be refreshing each cell at a certain frequency.) The simple equation is the more times a cell is erased the sooner it…
That's incorrect. Charge leaks very slowly out of cells. It's not a big issue, but it does happen. Powered-on SSD firmware knows about the problem and will maintain the cells.
[1] http://www.anandtech.com/show/9248/the-truth-about-ssd-data-...
Re: SSD Prices in a Free Fall
#38Is keeping a SSD powered on enough to prevent bit rot?
It should have no impact. It really is about write capacity. The little cells can only handle being changed so many times before they wear out. The wearing is a chemical/semi-conductor type problem. It's not like DRAM where keeping power applied keeps the cells "fresh" (and in DRAM it's done literally be refreshing each cell at a certain frequency.) The simple equation is the more times a cell is erased the sooner it…
[deleted]
Re: SSD Prices in a Free Fall
#39Is the hdd demise indeed expected so quickly?
SSDs need to be powered up fairly often to maintain data integrity. So, they're great for the drives in computers, but for external or backup drives--which might only be powered up occasionally, spinning magnetic disks will still be a better choice for a while, it seems. edit: maybe not. Bringing this article up from samcheng's post below: http://www.anandtech.com/show/9248/the-truth-about-ssd-data-...
I think that we'll just see magnetic disks go away, and tapes pick up the long-term storage market. Pretty much nothing happens when you drop a box of tapes.
Re: SSD Prices in a Free Fall
#40Earlier quoted context omitted.
SSDs need to be powered up fairly often to maintain data integrity. So, they're great for the drives in computers, but for external or backup drives--which might only be powered up occasionally, spinning magnetic disks will still be a better choice for a while, it seems. edit: maybe not. Bringing this article up from samcheng's post below: http://www.anandtech.com/show/9248/the-truth-about-ssd-data-...
Do you have a source for this? Just curious.
This problem is overblown. A new SSD should be expected to have 10 years of data retention, according to:
http://www.anandtech.com/show/9248/the-truth-about-ssd-data-...