Total Noob needs help removing metada on used drive from previous setup.

[hydrotruth]

Hi to all...
First time on the forum and hope the FreeNAS community could shed some light on my problem.
I have setup FreeNAS-8.3.0-RELEASE-x86 (r12701M) with two drives that i used a few days ago in another freenas box i tried setting up.
The problem I am having now is that trying to wipe the ada1 disk won't clear the metadata from the previous setup.
I have tried using Putty to ssh with the following commands firstly for permissions:

sysctl kern.geom.debugflags=0x10

and then...

dd if=/dev/zero of=/dev/ada0 bs=512 count=1 && dd if=/dev/zero of=/dev/ada1 bs=512 count=1

wiping the disk from the webGUI i noticed stops at 23%.
What am I doing wrong? I'm so frustrated.
All i want to do is create a new volume...how hard can it be?
Please guide me through to post reports and things like that as i am very new to all this!

Thanking everyone in advance for any assistance.

 

[ProtoSD]

From the FAQ: .... http://forums.freenas.org/faq.php?faq=general_freenas#faq_old_disk_errors

 

[hydrotruth]

Thanks protosd...

I have tried wipe with full zeros numerous times....it never completes all the way to 100%
It stops at random, 9% 14% 23%
It always starts at 1% and never ends to 100%
Running 8.3.0
Any other suggestions?

 

[hydrotruth]

update....now I can create a volume after repeating the wipe but with a different error this time.

dat /mnt/dat None (Error) Error getting available space Error getting total space UNKNOWN

 

[cyberjock]

If you can't complete a wipe the drive may be bad. You should run some diagnostics on it.

 

[hydrotruth]

Thanks noobsauce80.....

will read through that.
Sorry for the question, how to run diagnostic? Through FreeNAS?

 

[ProtoSD]

Thanks protosd...

I have tried wipe with full zeros numerous times....it never completes all the way to 100%

The method I referred you to doesn't require writing zeros to the entire drive, it only wipes the start and end where the "metadata" is.

Noobsauce is right, sounds like a failing drive. FreeNAS doesn't have diagnostics. Google is your friend....

 

[hydrotruth]

Thanks guys!

Will do!

In the meant time a couple of new disks sounds like an option :P