Question

SMART test fails on "Unknown"

Using Acronis, I routinely clone my c:\ drive so if I have a failure I can insert the drive and be up and running quickly. Acronis won't do the clone if it detects errors. Here's what I found. I'm not sure if this is a real error or not and what I can do for it. The SSD is only about two years old.

http://www.bobhatcherweather.com/wp-content/uploads/DeleteMe.jpg

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Rough guess

As far as I know, SSDs don't do traditional SMART testing which involves relocation of data to spare sectors if those sectors fail testing. As well, I see a reference to IDE so is it possible you have the BIOS set for SATA to use some legacy IDE mode?

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SSD vs HDD

In Linux typically operating system can be put on an SSD, but then the /home folder which contains all the user created stuff put on an HDD. In windows it would be like moving all the Documents and other user folders to an HDD, so if the SSD fails, and they often don't allow much recovery then, all the important stuff is stored on the HDD, which is more reliable for data storage.

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B4 appears to be partially hard coded to ZERO. But..........

From the web:
"Attribute spec sheet from Micron: ​https://www.micron.com/~/media/documents/products/technical-note/solid-state-storage/tnfd22_client_ssd_smart_attributes.pdf
SMART ID 180 (B4h): Unused Reserve (Spare) NAND Blocks
Current Value: This value is hard-coded to zero (00h).
Worst Value: This value is hard-coded to zero (00h).
Raw Data: This value is calculated as: URBC = BT - BG
Where: URBC = Total unused reserved block count.
BT = Total number of spare blocks when the drive left the factory. The spare block count represents the number of grown bad blocks the drive can handle in the field before it enters write protect.
BG = Total number of grown bad blocks."

My initial thought is Acronis or the drive test software doesn't know this nugget.

Post was last edited on September 19, 2019 10:35 AM PDT

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In other words.

Use Crucial's own rules and not WD's Lifeguard.

Also I've seen reporting errors when a lot of drives are connected. To re-verify I:
1. Test with only this drive attached.
2. Test according to that drive maker's instruction.
3. There is something I diverge with the maker on. High values in 01 and 07. Many find that when these are in the thousands plus the client is complaining of many issues. Those drives have not technically failed but are causing trouble for their users.

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1 & 7, something like this.
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Now put Windows on it.

No, don't.

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ROFL

I did leave the windows recover partition on it. Now I just have it as a backup linux 17.3 system, I've moved onward to 18.3 for my other drive and main use.

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Thanks.

I've found Linux to be far more efficient on disk I/O than Windows. It's something Linux has worked hard on for decades so a slow or iffy drive on Windows takes a bigger toll on performance.

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Thanks...

Thanks guys. I found Crucial's tool and checked and it said the drive was fine using all tests. But, Acronis clone still won't work. I'll be contacting them to see how to fix it.

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use GParted

It's never failed to clone for me.

https://gparted.org/

A linux program,but can be used in/for windows too.

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Here's a thing.

I've found that when there are many drives hooked up, Acronis and other tools get confused about drive health. Reduce the number of drives to just the source and target.

Then report the issue to Acronis. You paid, you get support.

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