Modern Solid-State Drives (SSDs) Course - Meeting 2: Basics of NAND Flash-Based SSDs (Fall 2021)

[@balajikannan78]

Such an excellent lecture. Thanks for this!

[@brothermanbill7338]

Love it! Looking forward for more lectures. I'd love to see lecture on Read Retry Operations, 1H1S (hard/soft) reads correction , LDPC error corrections, RAID/RAIN mechanism and UECC handling on SSDs

[@KshitishBehera]

Thank you so much for a wonderful explanations

[@vandersondelimareis7865]

Parabéns foi muito didático e detalhado.

[@cutiepie0608]

Thank you

[@znotft]

Great lecture!

[@RixtronixLAB]

Nice video, thanks :)

[@philippguhring1560]

What about storing the month+year when a page was written in a SLC way, and lowering the read voltage according to the age of the page to compensate for the voltage loss?

[@dibyadrastasahoo7210]

Dear Sir, plz upload more video on nand flash memory related to MLC starting from MLC

[@li-weiliu9043]

Is there any relation between the "page fault" we learned from the Operating System and the "so called 4KB alignment (512 Byte Sector X 4 )" ?

[@philippguhring1560]

Yes, in both cases you will get a horrible performance. In the page fault case the page isn't in RAM and it has to be loaded from disk. With unaligned read accesses, you usually get a very high read/write amplification (it needs to read+write many pages to service a single request, so it leads to much slower response from the SSD and a bigger wear of the NAND flash.

[@suhaimiseliman8593]

IF WE APPLY > 1 THRESHOLD VOLTAGE.... 1001 MAY BE WRITE AS 1100 @ 1010...🤔