Good question! Currently I have mine at once a month. I too would like to know this answer.
Up 
No one has some suggestoin?
no one know the difference, or can link me some guide? I can't find anything usefull
I think if we keep looking the web will find it 
This is more of a matter of preference.
I do a short test on all drives once a week, afterhours. I believe that's enough to increment the counts on the "maybe it's time to worry" SMART attributes:
SMART 5 – Reallocated_Sector_Count.
SMART 187 – Reported_Uncorrectable_Errors.
SMART 188 – Command_Timeout.
SMART 197 – Current_Pending_Sector_Count.
SMART 198 – Offline_Uncorrectable.
I don't do long tests as a matter of routine - only after something odd appears. (Follow up.)
I think if we keep looking the web will find it
Have you found something?
I do monthly long-test, with weekly short-test.
This is how I had it from way back in Synology days.
I think if we keep looking the web will find it
I don't even know what software OMV is using to check the SMART data
QuoteDisplay More
SMART 5 – Reallocated_Sector_Count.
SMART 187 – Reported_Uncorrectable_Errors.
SMART 188 – Command_Timeout.
SMART 197 – Current_Pending_Sector_Count.
SMART 198 – Offline_Uncorrectable.
thanks!
I don't even know what software OMV is using to check the SMART data
The command line program is smartctl .
A sample command is: smartctl -x /dev/sda
If you're asking how to check SMART in the GUI (note that you'd have to enable devices in the SMART settings tab).
The extended information tab contains extensive details on each hard drive.
Display MoreThe command line program is smartctl .A sample command is: smartctl -x /dev/sda
like so right hint the green dot buy monitor? and I get a email update.
@neurotone
I wouldn't worry just yet. While 1 reallocated sector is not good, it's not really bad either. (A few extra sectors are designed into a drive for this purpose - media errors.)
I would keep an eye on it. If reallocated sectors start to increment upward, it's just a matter of time and it might go fast.
Of note is, if the drive is between 4 to 7 years old (or the equivalent in hours) that's the rough expected life. They don't last forever.
I only run smart tests manually, when I intend to actually look at them. I never run them automatically. It might be once per month or so. Or even less often.
The smart tests are good for early warning before the drive fails totally. I used to run tests daily but stopped. I don't really care about early warning. If the drive fails it fails. I run OMV on several single drive SBC NAS. I have good backups and redundant servers.
It might be a different story if you run a big raid array with many drives with no redundant server. Then it might be critical to get early warning and swap drives before they fail for real.
I do a short test on all drives once a week, afterhours. I believe that's enough to increment the counts on the "maybe it's time to worry" SMART attributes
Wrong. If you want to increase «the counts on the "maybe it's time to worry" SMART attributes» you need to run a long test.
The difference is
A short test might result in the drive later switching the SMART overall-health self-assessment test from PASSED to FAIL (since the drive controller realizes position time of the heads increasing and such a servo about to die soon) but this will not increase values of those attributes you seem to be interested in.
We do monthly long tests to get drives reporting uncorrectable errors and potentially mapping away bad sectors followed by ZFS resilvers the other day (scheduled on weekends since those are all business installations). If there's data corruption at the drive level it will be compensated by ZFS at the filesystem level directly afterwards.
Wrong. If you want to increase «the counts on the "maybe it's time to worry" SMART attributes» you need to run a long test.
Wrong. SMART attributes can increment with no user scheduled tests at all.
If you select "saturday" in "Day of week" and keep "*" in month and day of week it should do what you want.
SMART attributes can increment with no user scheduled tests at all
Exactly. But the context was your wrong believe that a short test could help increasing these SMART values which is not the case:
I do a short test on all drives once a week, afterhours. I believe that's enough to increment the counts on the "maybe it's time to worry" SMART attributes
Again: for this only a long test is sufficient since it's about to tell the drive controller to scan/verify the whole drive surface.
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