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https://serverfault.com/questions/1041661/s-m-a-r-t-lifetime-hours-resetting-to-zero#:~:text=On%20the%20other%20hand%2C%20the%20LifeTime%20%28hours%29%20value,minutes%2C%20SS%20is%20seconds%20and%20msec%20is%20milliseconds.
https://unix.stackexchange.com/questions/177846/in-smartctl-output-what-does-lifetimehours-mean
For example I have two drives where LifeTime is a uint16 and rolls over after 65535 hours. sudo smartctl -A -l selftest /dev/sda | egrep '(Power_On|# 1)' 9 Power_On_Hours 0x0032 022 022 000 Old_age Always - 68380 # 1 Extended offline Self-test routine in progress 80% 2844 - …
https://www.grimoire-command.es/2020/smartctl_to_check_ssd_lifetime_and_much_more.html
Here the SSD consumed 4% of its manufacturer guaranteed lifetime (during 3 years and 9 000 power-on hours). An SSD can survive 3x (to 10x) its official TBW (TeraByte Written) value, but its warranty wont…
https://www.cisco.com/c/en/us/support/docs/servers-unified-computing/ucs-c-series-rack-servers/215834-identifying-power-on-hours-for-ssd-drive.html
/opt/smartmontools/smartctl -d scsi -t short /dev/disks/naa.xxx – Wait 10 seconds before running the second command /opt/smartmontools/smartctl -d scsi -l selftest /dev/disks/naa.xxx ; Look for the “Lifetime” hours from the 1st line. That will be the latest record of PoH. [jbod esxi smartmon] Sg3_utils for Windows - JBOD mode . Installation
https://serverfault.com/questions/1041661/s-m-a-r-t-lifetime-hours-resetting-to-zero
On the other hand, the LifeTime (hours) value reported for self/short/long tests seems to wrap at ~49 days, similar to how SMART error reporting works. From smartctl man page: This is displayed in the form Dd+HH:MM:SS.msec where D is the number of days, HH is hours, MM is minutes, SS is seconds and msec is milliseconds.
https://www.smartmontools.org/ticket/680
Overflow could only be detected if any old test with up to 65535 hours is still in the log. I'm not sure whether this is worth the effort for rare disks with a power on time of at least ~7.5 years. I leave the ticket open as 'undecided' for now. BTW: smartctl 6.5 2016-04 …
https://www.cisco.com/c/en/us/support/docs/servers-unified-computing/ucs-c-series-rack-servers/215834-identifying-power-on-hours-for-ssd-drive.pdf
smartctl€-t short /dev/sdX€– Wait 10 seconds before running the second command€ smartctl€-l€selftest€/dev/sdX Look for the “Lifetime” hours€from the 1st€line.€ That will …
https://linuxconfig.org/how-to-check-an-hard-drive-health-from-the-command-line-using-smartctl
Let’s become familiar with the smartctl utility. The first thing we want to check is if S.M.A.R.T support is active on the device. To perform this operation we can run the smartctl utility with the -i option (short for --info): $ sudo smartctl -i /dev/sda The output of the command is the following:
https://www.linuxtechi.com/smartctl-monitoring-analysis-tool-hard-drive/
Smartctl is a command line tool in linux which is used monitor the health of hard drive and it also check hard drive for errors and bad sectors.
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