Re:SD cards could soon hold 128TB of storage
by skissane on Friday June 29, 2018 @01:55AM
(#17422674)
All I think is happening is the communication protocol used to talk to the SD card is being extended to be able to address up to 128 TB of storage. That doesn't mean 128 TB SD cards are going to be available any time soon. SD cards that big are many years away. There are 1TB prototypes but they aren't yet shipping. 128TB cards are probably decades away.
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Re:SD cards could soon hold 128TB of storage
by isostatic on Friday June 29, 2018 @04:05AM
(#17423116)
A high speed memory card will write 90MBytes per second. That's 16 days to fill a 128TB disk up, or 1.5 hours to fill up today's drives. Speeds will have to increase dramatically to have any demand.
It's took about 18 years to increase from 64M to 256G, 4000 increase, doubling every 18 months. That would suggest about another decade before we hit 128TB.
If speeds keep track though, UHD2 is about 12GBytes per second. That's 43TB an hour, or 3 hours on a 128T card.
Re:SD cards could soon hold 128TB of storage
by skissane on Friday June 29, 2018 @05:06AM
(#17423341)
> It's took about 18 years to increase from 64M to 256G, 4000 increase, doubling every 18 months. That would suggest about another decade before we hit 128TB.
True, so maybe my statement "decades away" is overly pessimistic.
On the other hand, we are getting closer to the physical limits of our current semiconductor technologies, so the future growth rate may be less than the past. Which might make my "decades away" statement more true.
Re:SD cards could soon hold 128TB of storage
by isostatic on Friday June 29, 2018 @05:11AM
(#17423366)
I've spent the last decade saying "capacities can't increase", and been proven wrong :D
Re:SD cards could soon hold 128TB of storage
by mips_avatar on Friday June 29, 2018 @09:29PM
(#17429018)
Can't you speed up write speeds as you add in each memory chip in the sd card? It's like how raid1 with 5 drives is faster than any single drive.