If the disks (read LUNs) do not appear to windows as a disk then
a Windows based disk recover tool will also not see the drive to recover –
e.g. for these to work it would need to see a disk drive and see no or corrupt
file/partition system to fix it.
Suggest you look at an Linux boot CD/DVD that has iSCSI support
to see if it can mount it as a NTFS volume. (follow Darren Sykes advise so as
not to break it further)
A quick google for a tool to recover LUNs does not look very
promising – good luck and please post back if you do find something.
From: owner-toasters@mathworks.com
[mailto:owner-toasters@mathworks.com] On Behalf Of Darren Sykes
Sent: Wednesday, 23 December 2009 8:51 PM
To: Suresh Rajagopalan; toasters@mathworks.com
Subject: RE: Fixing corrupted NTFS LUN's
You’d think the LUNs are fine (and the fact they’re
actually just a file on the Netapp won’t matter as it’s a file
system issue).
I assume something like fdisk /fixmbr or the recovery console
were no use to you (disclaimer: work on a flexclone or at least make sure you
have a snapshot before trying that!)?
There are commercial products (such as http://www.partition-recovery.com/)
but I can’t vouch for their effectiveness.
From: owner-toasters@mathworks.com [mailto:owner-toasters@mathworks.com]
On Behalf Of Suresh Rajagopalan
Sent: 23 December 2009 07:26
To: toasters@mathworks.com
Subject: Fixing corrupted NTFS LUN's
Following up on my post, we had HBA and
path issues causing LUN corruption on several NTFS LUN’s on the original
host. As a result, we cannot even see a partition table on the
LUN’s.
Are there any utilities to manipulate or
repair NTFS LUN files (which are visible as flat files via the CIFS share to
the volume)?
Thanks
Suresh
From: Suresh
Rajagopalan
Sent: Tuesday, December 22, 2009 7:38 PM
To: toasters@mathworks.com
Subject: Cannot see LUNs after server move
We had a bunch of NTFS LUN's on a server
that crashed (2003x64/Snapdrive 4.2.1). We are trying to move the LUNS to
another server(Snapdrive 6/Win2k3x64). To do this we did the following:
1) Unmap old initiator from lun
2) Zone new server to the Netapp filer.
3) Try to use connect disk from new server
to the lun
4) This gives a error saying drive
notification timeout
To debug this more, I opened Disk
Management. The disks do not show up there either. But they show up
as LUNs under Device manager. Why do the LUN's show up in Device
Manager/Disk drives but not in Disk management?
Thanks
Suresh
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