In maintenance mode you'll find the commands label wipe <diskid> and label makespare <diskid>

Those two commands given in this order should help you to get the disk recognized by your version of ontap.

-Matti-

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From: owner-toasters@mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Glenn Walker Sent: 24. toukokuuta 2006 6:23 To: Nathan G. Mitchell; George, Andrew; toasters@mathworks.com Subject: RE: downgrading the firmware on NetApp drives

Label erase 7.54 is the command if I recall.

My recommendation is to call NetApp support and have them walk you through it. The BEST course of action is to have the drive with the 'bad' label replaced via RMA.

Glenn

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From: owner-toasters@mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Nathan G. Mitchell Sent: Tuesday, May 23, 2006 10:29 PM To: George, Andrew; toasters@mathworks.com Subject: RE: downgrading the firmware on NetApp drives

I wish the old machine still existed so that I could zero the old drive on that machine. That would sure help!

Even in priv set diag I don't see the disk_erase_label command. The bad drive is 7.54. What would be the syntax for the command and what priv would I have to use to execute it? I hope I don't do something horrible and erase all the disklabels or something.

Am I looking in the wrong place? How do I use the "ok" at the boot prompt?

--

nate

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From: George, Andrew [mailto:georgea@anz.com] Sent: Tuesday, May 23, 2006 9:20 PM To: Nathan G. Mitchell; toasters@mathworks.com Subject: RE: downgrading the firmware on NetApp drives

Hi,

Thats not a firmware problem thats the disk label.

Essentially the disk was removed from a filer running a later version of OnTap so the version of OnTap in the filer thats trying to read it can't understand it.

Theres two possible ways of fixing it (that I know of, one of the gurus might no a better way)

1) Put the disk back in the old system (or a system running a later version of OnTap) and then zero the disk

2) Reboot the filer and use the label erase command (I might be rmisrmembering the actual command..it's documented on Now) which is a command from the Ok prompt

Andrew

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From: owner-toasters@mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Nathan G. Mitchell Sent: Wednesday, 24 May 2006 10:10 AM To: toasters@mathworks.com Subject: downgrading the firmware on NetApp drives

I found a 36GB NetApp drive for my f740 with FC9 shelves and when I put it in the machine, it said: Tue May 23 19:14:07 EDT [raid.assim.disk.badlabelversion:error]: The label on disk 7.54 (S/N 3CD0FN3X000021098HUD) is a newer version than that supported by this software. Either remove the disk or upgrade the system software.

Of course, the disk_fw_update command didn't work because the versio of the firmware is NEWER than what's supported by my OS (Data Ontap 6.4.4p7). How does one go aboot DOWNGRADING the firmware on a NetApp drive?

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nate