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Crucial CT525MX300SSD1 - sectors read problem
http://forum.hddguru.com/viewtopic.php?f=10&t=37087
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Author:  melvin [ July 14th, 2018, 8:15 ]
Post subject:  Crucial CT525MX300SSD1 - sectors read problem

Hello friends,
Just got this Crucial MX300 based on Marwell 88SS1074. It ID's good. Full Capacity, SN and model. But i can read only two sectors at a time. Then the drive won't read anything. It needs to be powered off and on, wait 5 seconds and then i can read another two sectors. Checked it on many sectors and this seems to be the only way to read the data. Did anyone have a similar case or has any idea how this can be solved in more automatic way?

Author:  lcoughey [ July 14th, 2018, 15:38 ]
Post subject:  Re: Crucial CT525MX300SSD1 - sectors read problem

What hardware imager do you have? DeepSpar would work.

Author:  melvin [ July 14th, 2018, 16:02 ]
Post subject:  Re: Crucial CT525MX300SSD1 - sectors read problem

PC3000 only. I can't figure out why it needs those extra 5 seconds. It works like this: power on -> it gets DRD right away but it can't read any sectors. Have to wait 5 seconds. And can read only 2 sectors. It would be already done without it. With that speed of 2 sectors read, reset, wait 5 seconds and read next, 400MB of MFT will take 250h...

Author:  jermy [ July 14th, 2018, 19:25 ]
Post subject:  Re: Crucial CT525MX300SSD1 - sectors read problem

melvin wrote:
400MB of MFT will take 250h...

at least twice as much

Author:  melvin [ July 15th, 2018, 2:19 ]
Post subject:  Re: Crucial CT525MX300SSD1 - sectors read problem

jermy wrote:
melvin wrote:
400MB of MFT will take 250h...

at least twice as much

i click fast ;) But still... it's not an option.

Author:  jermy [ July 15th, 2018, 3:55 ]
Post subject:  Re: Crucial CT525MX300SSD1 - sectors read problem

you can click as fast as you can
but still will be left with at least double that time
(you cant beat the calculator ;) )

400MB = 781,250 sectors / 2 (each read) (= 390,625(times to read them all)) * 5 (sec between each read) = 1,953,125 (seconds to read them all) = 542.5347H

assuming its 400MiB = 819200 sectors / 2 (each read) (= 409,600(times to read)) * 5 (sec between each read) = 2,048,000 (seconds to read them all) = 568.888H

Author:  melvin [ July 15th, 2018, 4:12 ]
Post subject:  Re: Crucial CT525MX300SSD1 - sectors read problem

Well, i beat your calculator yesterday. I did get the file list from the desktop in less than 10h.
Anyway, let's leave the math. I got 2 days to get the data and still no idea what the hell is wrong with this drive. Like it gets overflowed(i guess it's not a right word).

Author:  jermy [ July 15th, 2018, 5:21 ]
Post subject:  Re: Crucial CT525MX300SSD1 - sectors read problem

try in reverse

Author:  melvin [ July 15th, 2018, 6:11 ]
Post subject:  Re: Crucial CT525MX300SSD1 - sectors read problem

I did. There's nothing that changes the way it works. Reverse, numer of sectors, ice, hot, i think i did all. Solution, if possible, must be in firmware i think. But those controlers are not supported by PC3k SSD yet. Waiting for monday to ask AceLab if they have any solution ready.

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