Which SMART Attributes tell you when a SSD is starting to go?

MikeyCarter · 01-21-2019, 12:21 PM

I know when a regular hard drive is about to go... this one starts increasing:

Code:

  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       0

What's the parameter I should monitor for SSD? Reallocated_Event_Count? Retired_Block_Count?

Ztcoracat · 01-21-2019, 04:53 PM

When my HDD went south these were the errors I was getting.
It wouldn't boot no matter what I tried.

Code:

28.561344] ata1: irq_stat 0x0c000000, interface fatal error
[   28.561347] ata1: SError: { RecovData UnrecovData Proto HostInt 10B8B BadCRC }
[   28.561350] ata1: hard resetting link
[   29.051044] ata1: softreset failed (device not ready)
[   29.051048] ata1: applying PMP SRST workaround and retrying
[   29.222849] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
[   29.222866] ata1: EH complete
[   29.222889] sd 0:0:0:0: [sda] Unhandled error code
[   29.222892] sd 0:0:0:0: [sda] 
[   29.222893] Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK
[   29.222895] sd 0:0:0:0: [sda] CDB:
[   29.222897] Read(10): 28 00 00 00 00 77 00 00 08 00
[   29.222905] end_request: I/O error, dev sda, sector 119
[   29.222908] Buffer I/O error on device sda1, logical block 28
[   29.222911] Buffer I/O error on device sda1, logical block 29
[   29.222913] Buffer I/O error on device sda1, logical block 30
[   29.222915] Buffer I/O error on device sda1, logical block 31
end_request: I/O error, dev sda, sector 119
end_request: I/O error, dev sda, sector 121
 end_request: I/O error, dev sda, sector 123

https://www.ghacks.net/2017/07/19/ho...h-in-gnulinux/

Quote:

What's the parameter I should monitor for SSD? Reallocated_Event_Count? Retired_Block_Count?

I'm not sure so you'll have to wait for other members to answer that or google it.

https://www.google.com/search?client...60.6YCE_Ep5afY

Brains · 01-22-2019, 11:22 PM

Smart was designed for HDD, not SSD. Smart utility more likely to report a good SSD as failing. Use utility designed for SSD.

jsbjsb001 · 01-23-2019, 12:04 AM

Quote:

Originally Posted by Brains

Smart was designed for HDD, not SSD. Smart utility more likely to report a good SSD as failing. Use utility designed for SSD.

SMART also covers SSD drives too. If you have a look, you'll see that SSD drives have SMART attributes with slightly different names.

Brains · 01-23-2019, 07:08 AM

Quote:

Originally Posted by jsbjsb001

SMART also covers SSD drives too. If you have a look, you'll see that SSD drives have SMART attributes with slightly different names.

Yeah...
That's all fine and dandy'
Have a boo at this article.

Quote:

It should be noted that many of the S.M.A.R.T. utilities were originally designed for hard disk drives, which means they do not report SSD data correctly. When an attribute value is below the manufacturer’s threshold, the hard disk is considered unreliable. Often the attributes are incorrectly identified and a perfectly healthy SSD is reported as failing.

And this article should convince you of what I am highlighting, which is-----> The majority of S.M.A.R.T technology is focused on mechanical hardware. Ensure the software you are using focuses on SSD.

michaelk · 01-23-2019, 07:40 AM

Wear Leveling Count and Power_On_Hours are probably the significant indicators. However, what is reported and their values depends on the manufacture.

jefro · 01-23-2019, 02:53 PM

Always helps to view the OEM's web site for any programs they may have to view status. Some linux ones exist but many OEM's still use some sort of dos or windows.