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Forum Discussion
SMART errors on EDA500 not reported in log
I have two EDA500's attached to my RN516. Current firmware is 6.9.2, but this has apparently been going on in 6.7.5 and 6.8.1 before it (I skipped everything else in between). I have two drives ...
We don't send out email alerts for every change. If we did there'd be a flood of alerts.
I expect a log entry (and am pretty sure I've gotten them on units w/o EDA500) for that many reallocated sectors. I'm not talking about email alerts, I don't have them configured..
To get an alert for reallocated sectors one of the following conditions must be met:
* - 50 reallocated sectors AND power-on hours <= 24
* - Reallocated sector count increasing at least 10 times in the past 30 days
* AND reallocated sector count > 500
* - Reallocated sector count > 1500
mdgm-ntgr wrote:
To get an alert for reallocated sectors one of the following conditions must be met:
* - 50 reallocated sectors AND power-on hours <= 24
* - Reallocated sector count increasing at least 10 times in the past 30 day AND reallocated sector count > 500
* - Reallocated sector count > 1500
In my opinion these conditions are far too lax. I much prefered the alert policies in OS 4. It's one reason I'm presently keeping my Pro-6 backup NAS running OS 4.2.
I replace disks when the reallocated+pending sector count exceed 50, and this alert policy forces me to look for at these stats manually instead of depending on the alerts.
In general, policies on when disks should be taken out of service vary considerably - there is no well-established best-practice. Netgear should provide alerts that can fit a range of policies, and clearly you aren't. And this isn't a small matter - keeping your disks healthy is a critical aspect in managing a RAID array.
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