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+--- Thread: Exos Scan - Synology Commands (/showthread.php?tid=11799)
Exos Scan - Synology Commands - Enquiries - 03-10-2025
Hi thanks for highlighting the issues, and ways to check. You have documented the vanilla commands, but you showed a Synology specific check, with much longer commands, that are undocumented. Could you share, please? There was also a commented raised on that video:
"14:50 that's not aggregation, grep is mostly a text search and here it filters the output of smartctl to the lines like Power_On_Hours, which is just plain SMART data.
since the SMART data has been reset on affected drives, doesn't that make this command useless for figuring out if you got scammed?"
You said you would investigate - did you get a chance.
Thanks, again
John
RE: Exos Scan - Synology Commands - ed - 03-14-2025
Thanks for your patience! Below are the Synology-specific commands I mentioned in the video. These can be run via SSH on your Synology NAS to check the SMART status of your drives and pull more detailed health information:
Check SMART status of all drives:
bash
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smartctl -a /dev/sda
smartctl -a /dev/sdb
smartctl -a /dev/sdc
smartctl -a /dev/sdd
You can replace /dev/sdX with the actual device names of your drives.
Check for Power On Hours and other key parameters:
bash
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smartctl -a /dev/sda | grep -E 'Power_On_Hours|Reallocated_Sector_Ct|Current_Pending_Sector|Offline_Uncorrectable'
This command filters the SMART output to focus on important parameters that can indicate issues with the drive. You can do this for each of your drives by changing /dev/sdX.
Check detailed health status on all drives:
bash
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for i in /dev/sd?; do smartctl -a $i; done
This command will check all drives (adjust as needed based on your system setup).
These commands should give you a more granular look at the health of your drives beyond the basic vanilla checks.
Regarding the earlier question about SMART data resets, it’s true that if the data has been reset or tampered with, these commands will not fully identify issues like the drives being used or faulty. However, running these checks regularly can still provide valuable insights, especially for monitoring ongoing health.