Failed Drive Alerting in Real Time . . . .

[TDPsGM]

After reading the 8.3.0 Release manual, I noticed that under section:

1.4.4 Storage Disks and Controllers

.... it says:
.... "Until FreeBSD commits zfsd, its implementation of ZFS will not notice that a drive is gone until you reboot or put the volume on high load."

The Question:

Is there a plugin, or script, or something we can run that will let us KNOW there is a disk problem?
How far away is this zfsd thing?

I am assuming that the "Volume on 'High Load' " means that you are trying to READ or WRITE a lot of data quickly and it's just taking forever to do. Is it THAT or is it that the Volume is almost 'FUll'?

Thanks for the clarification.

 

[TDPsGM]

I am sort of surprised that the system CAN'T send us an alert email.

Section 3.2.3 Users

We are already setting up and email for the root user:

NOTE: it is important to set the email address for the built-in root user account as important system messages are sent to the root user.

I would have thought it would have been a relatively simple thing for the system to detect a drive problem . . . No?

 

[ProtoSD]

This has been an issue since the release of FreeNAS 8.x. and it's been asked nearly a 100 or more times here.

ZFSd is supposed to be in FreeNAS 9.x which was supposed to be Dec. 2012, but generally releases are 6 months behind unless the developers decide to pull a rabbit out of the hat and skip pre-releases/testing....

 

[cyberjock]

If you look at the nightly emails you will see that one disk is racking up tons of errors(you can run zpool status too). That's about the best you can do for "automatic" at this time. If you have SMART emails setup you might get one 30 minutes after the disk fails.. depending on the failure.

 

[TDPsGM]

Thanks folks.

Out of curiosity, does anyone anticipate going to/converting to zfsd to be a pain, or is it anticipated to be like updating to the latest release of FreeNAS or upgrading to ZFSv28?

 

[ProtoSD]

It should be just like doing an upgrade. It will just be another background service, with possibly some extra knobs in the GUI for deciding what you want to be notified for. I haven't actually seen any of the code, so we'll just have to wait and see.