Hi. Thanks for the analysis. Indeed yes, this pc is practically always on. I like the RAID 1 idea, if one disk goes down I won't be caught up rebuilding from scratch even if it is just the OS. The Data is in a different disk.
JP On Sun, Nov 5, 2023 at 4:37 AM Roberto Ragusa <m...@robertoragusa.it> wrote: > 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 > _______________________________________________ > users mailing list -- users@lists.fedoraproject.org > To unsubscribe send an email to users-le...@lists.fedoraproject.org > Fedora Code of Conduct: > https://docs.fedoraproject.org/en-US/project/code-of-conduct/ > List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines > List Archives: > https://lists.fedoraproject.org/archives/list/users@lists.fedoraproject.org > Do not reply to spam, report it: > https://pagure.io/fedora-infrastructure/new_issue > -- ------------------------------ /\_/\ |O O| pepeb...@gmail.com ~~~~ Javier Perez ~~~~ While the night runs ~~~~ toward the day... m m Pepebuho watches from his high perch.
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