Thanks for All for the replies and recommendations ....
I seem to have gotten scanner running  with 'scanner -i -S ####  -t "LTO 
Ultrium-2" \\.\Tape########'

Just needed to get the syntax correct.  I can only assume it is running now, 
there's been no error, and it hasn't returned to a command prompt yet...  ( 
usually I've found if you're waiting, it's working )  It displayed this:

8909:scanner: using '\\.\Tape2147483643' as the device name
8936:scanner: scanning LTO Ultrium-2 tape 001653L2 on \\.\Tape2147483643
8939:scanner: LTO Ultrium-2 tape 001653L2 already exists in the media index

So I think it's working as far as I can tell... 

Thanks All Once Again...
Paul
-----Original Message-----
From: EMC NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] On 
Behalf Of Dsouza, Rovinabishek
Sent: Tuesday, May 22, 2012 12:43 PM
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: Re: [Networker] How to scan a LTO2 tape when all I have are LTO4 
drives ?

Paul,
        You have to use "-t type" option with your scanner command. Your 
command should look like this :  scanner -t "LTO Ultrium-2" -S 1804344764 -i 
\\.\Tape2147483643 

Rovin A. D'Souza
Principal Infrastructure Engineer| BUR  NetWorker| ITIL & EMCSA Certified | 
ITO-DCS-Storage| MphasiS An HP  Company Techbay, PL Compound, Morgan’s Gate, 
22-5-750, Jeppu Ferry road, Mangalore - 575001 | CUG extn- #5 651423 # |email:  
rovinabishek.dsouza AT hp DOT com | For any escalation, please contact Afkar 
Khan (Afkar.Khan AT hp DOT com)

 Information transmitted by this e-mail is proprietary to MphasiS and/ or its 
Customers and is intended for use only by the individual or entity to which it 
is addressed, and may contain information that is privileged, confidential or 
exempt from disclosure under applicable law. If you are not the intended 
recipient or it appears that this mail has been forwarded to you without proper 
authority, you are notified that any use or dissemination of this Information 
in any manner is strictly prohibited. In such cases, please notify us 
immediately at mailmaster AT mphasis DOT com and delete this mail from your 
record

-----Original Message-----
From: EMC NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] On 
Behalf Of Div Prakash
Sent: Tuesday, May 22, 2012 9:55 PM
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: Re: [Networker] How to scan a LTO2 tape when all I have are LTO4 
drives ?

Hi,

I faced the same issue with LTO3 and LTO5 tapes conflict, the thing i have done 
deleted the volume with nsrmm, rescan it with scanner,however as usual it takes 
long time to scan the full tape  but i got the all the data back into our 
networker index database.

On Tue, May 22, 2012 at 9:32 PM, bingo <networker-forum AT backupcentral DOT 
com>wrote:

> There is nothing wrong, except ...
>
> 8938:scanner: LTO Ultrium-4 tape 2223712427 for volume 001653L2 
> conflicts with existing media database entry for LTO Ultrium-2 tape
> 2223712427
>
> However, this is severe. NW obviously uses the same volid but treats 
> the tape as LTO4 and consequently sees a volume conflict which is not 
> resolveable.
>
> When we recently upgraded from LTO3 to LTO5, we did not have this problem.
> However, we are running 7.6.2.5.
>
> You have 3 options:
>  - Delete the existing media from the index and rescan it.
>  - And an old LTO2 drive (if still available, used as readonly) and 
> try a scan/recover from here.
>  - Get in touch with EMC support - they should know the issue. If so 
> they will most likely ask you to update.
>
> +---------------------------------------------------------------------
> +-
> |This was sent by carsten_reinfeld AT avus-cr DOT de via Backup Central.
> |Forward SPAM to abuse AT backupcentral DOT com.
> +---------------------------------------------------------------------
> +-
>