92:: DIMM with flash storage and traditional DRAM on the same module. The computer accesses the traditional DRAM directly during system runtime. In the event of a power failure, the module copies the data from the volatile traditional DRAM to the persistent flash memory, and copies it back when power is restored. It uses a small backup power source for the module while the data in DRAM is being copied to the flash storage.
47:
Many "non-volatile" products use volatile memory during normal operation and dump the contents into non-volatile memory if the power fails, using an on-board backup power source. Volatile memory is faster than non-volatile; it is byte-addressable; and it can be written to arbitrarily, without
39:
is memory that retains its contents even when electrical power is removed, for example from an unexpected power loss, system crash, or normal shutdown. Properly used, NVDIMMs can improve application performance and system crash recovery time. They enhance
193:
When the module includes non-volatile memory, backup power is required for only a short time after the computer's main power fails, while the module copies the data from volatile to non-volatile memory. Therefore, modern NVDIMMs use on-board
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86:: DIMM with flash storage. System users will need to pair the storage DIMM alongside a traditional DRAM DIMM. While there's no official standard, NVDIMM-F type of modules have been available since 2014.
234:
HBAs (host bus adapters) or systems, to enable data in the cache to survive a power failure. NVDIMMs have moved beyond RAID applications into fast storage appliances or in-memory processing for the
131:
as the non-volatile memory. Emerging memory technologies aim to achieve persistency without a cache or two separate memories. Intel and Micron have released in 2017, then discontinued in 2022, the
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concerns about wear and device lifespan. However, including a second memory to achieve non-volatility (and the on-board backup power source) increases the product cost compared to volatile memory.
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67:. The goal of this technology is able to scale cost-effectively scale out so persistent memory could replace DRAM as the main system memory in enterprise systems.
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98:: specification fully released by JEDEC in February 2021. It enables computer main memory to be persistent, using
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There are many emerging non-volatile memories in development and a few that have been launched including
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are disfavored in computer components because they have a limited lifespan, they may be regarded as
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123:: DDR4 DIMM with NAND Flash storage and volatile DRAM on the same module, developed by Xitore.
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8:
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interface to the computer, but standardization work in 2014 and 2015, such as at
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179:
64:
473:"Intels crazy fast 3D XPoint Optane memory heads for DDR slots but with a cache"
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technology, but it never was sold in DIMM format, contrary to announcements.
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to sustain power to a volatile memory for up to 72 hours. However,
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technology, but it never reached the market. Similarly, in 2015,
587:"ACPI 6 Non-Volatile Memory Device Support NFIT libND For Linux"
686:
368:"First carbon nanotube NRAM products due in 2020, says Nantero"
303:
Grupp, Laura M.; Davis, John; Swanson, Steven (February 2012).
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427:
230:
The BBU DIMM was originally designed for use as the cache of
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147:
76:
670:
Non-Volatile DIMMs and NVMe Spice Up The Flash Memory Summit
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32:
282:
Non-Volatile Memory and Its Use in
Enterprise Applications
665:
Memory And
Processor Advances Redefine Digital Technology
158:
announced a NVDIMM-P product, possibly based on Z-NAND.
619:"Non-Volatile DRAM Is Poised to Give Apps a Big Boost"
557:"JEDEC announces support NVDIMM hybrid memory modules"
424:"JEDEC Publishes DDR4 NVDIMM-P Bus Protocol Standard"
505:"Viking technology and Sony in ReRAM memory mashup"
206:A few server vendors still make products using the
75:There are three types of NVDIMM implementations by
340:
535:"Netlist And Samsung Partner To Deliver NVDIMM-P"
302:
166:NVDIMMs evolved from the BBU (battery backed up)
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146:have announced an NVDIMM-N product based on the
16:Type of random-access memory for computers
532:
359:
392:
584:
502:
470:
338:
305:"The Bleak Future of NAND Flash Memory"
697:
675:How to Solve the SSD Endurance Problem
616:
365:
450:"Does DRAM Storage Still Make Sense?"
447:
395:"Welcome to the era of NVDIMM Cards"
339:Maleval, Jean Jacques (2013-03-11).
275:
273:
115:Non-Standard NVDIMM implementations:
13:
110:DIMM interconnect with DRAM DIMMs.
14:
716:
705:Non-volatile random-access memory
643:
270:
252:Non-volatile random-access memory
44:(SSD) endurance and reliability.
545:from the original on 2021-01-02.
31:for computers using widely used
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599:from the original on 2018-12-23
585:Larabel, Michael (2015-05-21).
578:
567:from the original on 2016-04-24
549:
526:
485:from the original on 2015-08-23
405:from the original on 2018-12-23
366:Clarke, Peter (14 April 2020).
321:from the original on 2019-02-10
161:
617:Verity, John W. (2012-09-19).
533:Armstrong, Adam (2015-11-19).
496:
471:Mah Ung, Gordon (2015-08-21).
464:
441:
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386:
332:
296:
127:As of 2024, most NVDIMMs used
23:(pronounced "en-vee-dimm") or
1:
393:Golander, Amit (2015-08-23).
342:"SSDs Risk Massive Data Loss"
264:
102:technology and can share the
660:NVDIMM improve SSD endurance
448:Crump, George (2012-10-02).
201:
7:
503:Russell, Gil (2015-08-11).
245:
10:
721:
687:NVDIMM Electronic Solution
650:Memory that never forgets
374:. European Business Press
70:
59:(discontinued in 2022),
27:is a type of persistent
655:Non-Volatile DIMM Cards
623:Datacenter Acceleration
225:
53:Magnetoresistive RAM
29:random-access memory
454:Storage Switzerland
258:Non-volatile memory
218:, was based on the
182:, and may contain
37:Non-volatile memory
680:2013-10-07 at the
347:Storage Newsletter
312:Microsoft Research
198:to store energy.
144:Viking Technology
100:persistent memory
42:solid-state drive
25:non-volatile DIMM
712:
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625:. Archived from
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511:. Archived from
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456:. Archived from
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65:carbon nanotubes
55:(MRAM), Intel's
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682:Wayback Machine
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240:cloud computing
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196:supercapacitors
180:hazardous waste
170:, which used a
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79:Standards org:
73:
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12:
11:
5:
718:
708:
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644:External links
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563:. 2015-05-26.
548:
539:Storage Review
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463:
460:on 2013-06-16.
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292:, January 2014
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186:which violate
172:backup battery
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35:form-factors.
15:
9:
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629:on 2013-06-16
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631:. Retrieved
627:the original
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569:. Retrieved
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517:. Retrieved
513:the original
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487:. Retrieved
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458:the original
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432:. Retrieved
430:. 2021-02-17
418:
407:. Retrieved
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378:19 September
376:. Retrieved
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350:. Retrieved
346:
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323:. Retrieved
298:
281:
229:
205:
192:
190:compliance.
184:heavy metals
165:
162:Backup power
126:
120:
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113:
95:
89:
83:
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50:
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24:
20:
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236:data center
222:interface.
633:2013-09-06
603:2015-05-21
571:2015-05-26
519:2015-08-11
489:2015-08-21
434:2021-02-17
409:2015-08-23
352:2013-09-06
325:2014-05-08
265:References
129:NAND flash
399:Plexistor
202:Interface
176:batteries
133:3D XPoint
63:based on
57:3D XPoint
699:Category
690:(German)
678:Archived
597:Archived
592:Phoronix
565:Archived
543:Archived
483:Archived
403:Archived
316:Archived
246:See also
121:NVDIMM-X
96:NVDIMM-P
90:NVDIMM-N
84:NVDIMM-F
61:Nano-RAM
509:TechEye
478:PCWorld
254:(NVRAM)
156:Netlist
152:Samsung
21:NVDIMM
561:JEDEC
428:JEDEC
319:(PDF)
308:(PDF)
286:(PDF)
260:(NVM)
212:JEDEC
148:ReRAM
77:JEDEC
71:Types
380:2020
290:SNIA
238:and
232:RAID
226:Uses
220:DDR4
216:ACPI
214:and
208:DDR3
188:RoHS
168:DIMM
154:and
142:and
140:Sony
108:DDR5
104:DDR4
33:DIMM
136:PCM
106:or
701::
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589:.
559:.
541:.
537:.
507:.
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345:.
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288:,
272:^
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19:A
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355:.
328:.
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