http://wiki.docking.org/index.php?action=history&feed=atom&title=Advice_about_monitoring_disk_healthAdvice about monitoring disk health - Revision history2026-05-25T11:16:14ZRevision history for this page on the wikiMediaWiki 1.39.1http://wiki.docking.org/index.php?title=Advice_about_monitoring_disk_health&diff=16634&oldid=prevFrodo: asdf2025-03-13T18:17:01Z<p>asdf</p>
<p><b>New page</b></p><div>We run scrub regularly - every 3 months or more often. <br />
<br />
We also have the following advice courtesy of Andrew Davis via Wynton. <br />
<br />
More important than ZFS scrubs is monitoring Smart. For SATA, it's looking at Reallocated_Sector_Ct, Current_Pending_Sector, and Offline_Uncorrectable. If any of those go above 0, replace the drive.<br />
<br />
For SAS, it's a bit more challenging since SAS doesn't expose raw values. For those we do routine smart testing - weekly short, and monthly long:<br />
<br />
* short<br />
foreach file (/dev/da? /dev/da?? /dev/da???)<br />
smartctl -t short $file<br />
end<br />
<br />
* long<br />
foreach file (/dev/da? /dev/da?? /dev/da???)<br />
smartctl -t long $file<br />
end<br />
<br />
[[Category:Sysadmin]]</div>Frodo