----- Original Message -----
From: "Jeremy Chadwick" <[email protected]>
I apologise in advance if I have already reviewed your situation, but if
you could please provide full "smartctl -a" output for the disk, I can
review the data to see if anything looks out of place.
An example: on some (not all) Western Digital "Green" disks, including
enterprise models, Attribute 193 showing an extremely large RAW_VALUE
(in the tens of thousands, if not more) indicates the drive is trying to
park its actuator arm/heads constantly. The result: abysmal
performance. One cannot key off of the firmware version as an indicator
(WD does not always increase/change the firmware string). Some users
have been able to get WD to admit the problem + provide them a fixed
firmware.
My point: looking at SMART attributes doesn't help unless you know
exactly what to look for, are familiar with all the quirks of drive
models, and basically act as an information sponge (subscribe to all
sorts of mailing lists, talk to users, help generic non-technical
end users out, etc.). It takes up a lot of my time, but I try my best.
Sometimes I feel like my brain needs checksumming...
Thanks for the offer Jeremy unfortunately I'm in the same position Mike
was as these disks are behind an areca which doesn't show raw values :(
I've raised this with their support as an issue with their areca-cli
utility so hopefully they will fix. Alternatively maybe smartctl will
add support for the areca under freebsd in the future.
Regards
Steve
================================================
This e.mail is private and confidential between Multiplay (UK) Ltd. and the person or entity to whom it is addressed. In the event of misdirection, the recipient is prohibited from using, copying, printing or otherwise disseminating it or any information contained in it.
In the event of misdirection, illegible or incomplete transmission please
telephone +44 845 868 1337
or return the E.mail to [email protected].
_______________________________________________
[email protected] mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to "[email protected]"
