On 11/4/23 23:48, Javier Perez wrote:
> Hi.
> My boot SSD was purchased on May, 2015.
> It is a Crucial 128GB one.
It looks like this has been working for 8 years continuously:
> 9 Power_On_Hours 0x0032 100 100 000 Old_age Always
- 74107
$ date --date "now - 74107 hours"
Sat May 23 04:18:56 PM CEST 2015
and completely rewritten about 100 times:
> 246 Total_LBAs_Written 0x0032 100 100 000 Old_age Always
- 23588083829
$ calc
C-style arbitrary precision calculator (version 2.14.0.14)
Calc is open software. For license details type: help copyright
[Type "exit" to exit, or "help" for help.]
; 23588083829*512/128e9
94.352335316
but it is not showing signs of failures:
> 171 Program_Fail_Count 0x0032 100 100 000 Old_age Always
- 0
> 172 Erase_Fail_Count 0x0032 100 100 000 Old_age Always
- 0
> 196 Reallocated_Event_Count 0x0032 100 100 000 Old_age Always
- 16
> 197 Current_Pending_ECC_Cnt 0x0032 100 100 000 Old_age Always
- 0
> 198 Offline_Uncorrectable 0x0030 100 100 000 Old_age Offline
- 0
The only strange thing is this:
> 202 Percent_Lifetime_Remain 0x0031 097 097 000 Pre-fail Offline
- 3
which SHOULD mean that it has 3% of life time left.
But I would not trust this parameter too much, there have been bugs in how
it is reported. In particular, the SMART threshold is 0 and the current
value is 97, which, in SMART world means that 97 has to go down to 0
to indicate a problem. So maybe the disk has spent 3% of its life, not 97%
(100 rewrites are nothing, SLC are typically rated at 100,000)
Given all this, I would not throw away the SSD.It has proven to be reliable for
almost 10 years,
it is probably a very robust SLC flash, not common nowadays.
Sure, it is only 128GB, so a replacement would be very cheap,
but I think it may continue in its job.
Pairing it with another young SSD in RAID1 would be the best option,
or at least have some backups of data (you should always have).
Regards.
--
Roberto Ragusa mail at robertoragusa.it
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