Questions tagged [ssd]

Acronym for "Solid-State Drive" or "Solid-State Disk". SSDs are hard-drives that use semiconductors or DRAM to store data, usually NAND flash memory, rather than spinning magnetic disks.

Filter by
Sorted by
Tagged with
2
votes
1answer
64 views

M.2 PCIe x2 and SATA connections and key/notch with SATA/PCIe x4 SSDs

For my current project I am adding an M.2 slot for additional storage. Even though SATA data throughput is more than sufficient I would like to support both SATA and PCIe based SSDs, as I dont know ...
0
votes
2answers
73 views

What design differences make ram faster than ssd for read/write [closed]

I understand that RAM is connected directly to the CPU via a high bandwidth bus, and SSD is a peripheral, but my assumption is that there are also electrical design differences (e.g. memory cell ...
0
votes
2answers
119 views

Are SSDs true random-access devices?

Since all kinds of flash memories feature different transfer rates according to the kind of operation performed at a given moment (e.g., random access reads versus random access writes, random access ...
0
votes
0answers
98 views

Upgrade iMac 2009 HDD to SSD using transistor for thermal sensor replacement

I plan to upgrade a HDD to a SSD in an iMac 2009. I found several solutions online to deal with the lacking thermal sensor connection for SSDs, which might cause the fan speed to go to maximum. ...
1
vote
1answer
119 views

Possible to replace worn out NAND chips in solid state drives?

I understand that SSD endurance is typically much greater than advertised and disregarding any form of data recovery, is it possible to replace NAND chips in solid state drives (with the exact same ...
0
votes
4answers
132 views

Do you need to perform an erase before a write with a HDD?

A simple question, the answer to which is surprisingly difficult to find. Does the internal controller in a HDD have to erase a sector on the hard drive if it already contains information, before it ...
1
vote
1answer
168 views

SYNC Escape in SATA

I have a FPGA in which I have implemented SATA Host and a SSD as the device. The communication b/w them is occuring at SATA 3.0(6 Gbps). I have a situation in which during write transaction I receive ...
0
votes
0answers
179 views

Extremely high temperature on SSD

I've got an SM941 SSD and it became dead after shutdown while writing data. I decided to use up the nand flashes on it to DIY a new SSD. Then I get an controller board(SM2246EN) with NGFF size, SATA ...
1
vote
1answer
313 views

SATA Link layer Idle state primitive synchronization failure

I am currently working on interacting with SSD memory through a FPGA using SATA protocol. I am using a Xilinx KC705 evaluation board and SSD is from Samsung. I have connected the SSD device to the ...
0
votes
1answer
82 views

Removeable board sized ssd

Me and my friends are starting work on a small robotics product. We are just starting out in product creation, and were wondering how to transfer our programming to the bot's ssd. We realize we can ...
0
votes
1answer
104 views

Designing Or Customizing A HDD/SSD Logic Controller

I read this post which answered most of my questions, but was a bit disheartening. So, this one may need to be deleted. I have also done my other research looking through articles like this. Is it ...
3
votes
1answer
441 views

Why erasing SSDs in increments of entire blocks does not damage adjacent cells?

I know that to avoid corruption and damage, SSDs are only erased in increments of entire blocks. But how does that not damage adjacent cells? Why energy-intensive tunneling inhibition isn't necessary ...