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Intel Boots Drives with 3D XPoint

Optane prices debut at 3x NAND SSDs
3/19/2017 12:01 PM EDT
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resistion
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Re: 10,000 wpm?
resistion   3/21/2017 9:22:51 AM
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Will they run/ramp this in China Fab 68?

resistion
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Re: Doesn't look like SCM
resistion   3/21/2017 3:01:17 AM
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It's not listed, unspecified.

rick merritt
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Re: 10,000 wpm?
rick merritt   3/21/2017 2:28:49 AM
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@geekmaster: Al Fazio told me the Lehi fab running 3D NAND is now running single-digit 3DXP wafers

rick merritt
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Re: Doesn't look like SCM
rick merritt   3/21/2017 2:27:45 AM
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@resistion and @elizabethsimon: All the specs Intel is providing are now here:

https://www-ssl.intel.com/content/www/us/en/solid-state-drives/data-center-family.html

Not enough?

geekmaster
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10,000 wpm?
geekmaster   3/20/2017 5:54:03 PM
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Rick! How do you know that "The fab is currently running less than 10,000 3D XPoint wafers/month"? Also: do they also run 3D NAND?

 

resistion
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Re: Doesn't look like SCM
resistion   3/20/2017 12:03:05 PM
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Basically, how long the data is guaranteed at a specified temperature. More impressive if higher than room temperature of course.

elizabethsimon
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Re: Doesn't look like SCM
elizabethsimon   3/20/2017 11:50:27 AM
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The retention spec I'm interested in is how long the data is retained when powered off after being written. I'd prefer numbers in months or years...

If that's not practical, a spec on how long the data is retained when powered up and not refreshed...

As @resistion said, this is critical information to reduce power consumption.

rick merritt
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Re: Doesn't look like SCM
rick merritt   3/20/2017 11:08:13 AM
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@resistion If you can you be more specific about what retention spec you are looking for, in what units I can see if I can get it.

BTW, good questions on the 3DXP roadmap. However, I am certain they are ones Intel will not answer at this point, though they did say they have the next two generations in development.

resistion
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Re: ...XPoint scalability
resistion   3/20/2017 3:15:48 AM
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I would be interested to see the scaling path for 3D XPoint.

The trouble with this version of 3D (as opposed to 3D-NAND) is that adding more layers adds more cost proportionally, so cost/bit saturates. The mature, higher-voltage underlying CMOS should be relatively cheap.

As I understand it is already at the same design rule as DRAM (and in fact NAND) ~20 nm. Whether it can scale lower, could depend on what factors could disturb the cells, e.g., thermal. Also the lines connecting the cells get more resistive, which hinders the reading.

MLC/TLC would be the best or most practical hope. But this requires a mature enough (resistive) memory, and this would also slow down the writing.

The retention is the key for any power savings to be realized. But it is not highlighted, which has me worried for this release..

resistion
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Doesn't look like SCM
resistion   3/20/2017 2:59:48 AM
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A key thing missing here is the storage or retention spec, which should go with any SSD. It doesn't matter how much capacity you have if it disappears while writing.

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