The NDMP data stream format is not determined by NetBackup.  It
is determined by the NAS device performing the backup and is
therefore not necessarily portable to any other NAS (or non-NAS)
device.

NDMP has two major agents, one is the DATA agent and the other
is the MOVER/TAPE agent.  The MOVER/TAPE agent performs the
tape operations and streaming.  The DATA agent performs the
backup or restore.  In 4.5 NetBackup we added the feature
"Remote NDMP" which is only the MOVER/TAPE agent.  It does
not contain a DATA agent.

So you can use NBU 4.5 Remote NDMP on Solaris & Windows to
operate a tape drive.  It is exactly like the tape side of
an NDMP 3-way between two NAS devices.

Because the actual data format varies from NAS vendor to
NAS vendor, NetBackup (and likely any other NDMP backup
application) does not create or restore NDMP data streams.
You cannot restore an NDMP backup to a non-NDMP (DATA agent)
platform using NetBackup.

Some NAS vendors support compatibility between their data
format and external formats.  For example, NetApp uses a
variant of dump; except for the NetApp extensions, Solaris
ufsrestore can restore it.  However, this is strictly a
manual operation outside of NetBackup.  Most other NAS
vendors use tar/cpio/pax/dump or variations.  In short,
you can only depend on vendor X to/from vendor X.

The NDMP specification only defines the control
mechanisms.

I hope this clears up this complicated topic.


>Subject: RE: [Veritas-bu] Alternate client restores on NDMP !
>From: "Kennedy, Jeffrey" <jkennedy AT qualcomm DOT com>
>To: <Steven.Bally AT radisys DOT com>, "Karun Subramanian" <karunanidhis AT 
>hotmail DOT com>
>Cc: <Veritas-bu AT mailman.eng.auburn DOT edu>, 
<veritas-bu-admin AT mailman.eng.auburn DOT edu>
>Date: Wed, 30 Apr 2003 15:49:44 -0700
>
>That is almost correct.  Pre-4.5 it was not possible at all.  Post-4.5
>it may be possible if you can make the Windows host look like an NDMP
>server.  I don't know the details but 4.5+ is supposed to allow a
>Solaris/Windows server look like an NDMP server to allow NDMP backups
>across the network to the servers drives instead of using direct attach
>drives.  This can help with drive sharing but at the cost of
>performance.
>
> 
>
>You have always been able to restore an NDMP backup to a Solaris host
>and then move the data over to Windows if needed.  Of course, you do
>this without NBU pre-4.5, but it's possible.
>
> 
>
>~JK
>
> 
>
>-----Original Message-----
>From: Steven.Bally AT radisys DOT com [mailto:Steven.Bally AT radisys DOT com] 
>Sent: Tuesday, April 29, 2003 11:21 AM
>To: Karun Subramanian
>Cc: Veritas-bu AT mailman.eng.auburn DOT edu;
>veritas-bu-admin AT mailman.eng.auburn DOT edu
>Subject: Re: [Veritas-bu] Alternate client restores on NDMP !
>
> 
>
>
>Karun, 
>
>>From my understanding with Veritas, you cannot restore a NDMP client to
>a Windows box. 
>
>Others may know better than I, but that is what I was told.
>
>Steve Bally
>Network Administrator
>RadiSys Corporation
>www.radisys.com
>Steve.Bally AT radisys DOT com
>Desk: 503-615-1207 Cell: 503-970-6201
>
>This electronic message (Email) contains information which may be
>confidential, privileged or otherwise protected from disclosure. The
>information is intended to be used solely by the named recipient(s). If
>you are not a named recipient, any review, disclosure, copying,
>distribution or use of this transmission or its contents is prohibited.
>If you have received this transmission (Email) in error, please notify
>me immediately. 
>
>
>
>
> 
>
>"Karun Subramanian" <karunanidhis AT hotmail DOT com> 
>Sent by: veritas-bu-admin AT mailman.eng.auburn DOT edu 
>
> 04/29/2003 11:00 AM 
>
>        
>        To:        Veritas-bu AT mailman.eng.auburn DOT edu 
>        cc:         
>        Subject:        [Veritas-bu] Alternalte client restores on NDMP
>!
>
>
>
>
>Hi Folks !
>Can I not restore a file from NDMP backup to a Windows NT server and
>vice 
>versa? When I tried to restore a file in a NDMP backup to a Windows
>server, 
>it complained the "Path is not recongized". Any idea??
>
>Thanks,
>- Karun
>
>
>
>
>
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>


__________________________________________________________________________
Steve Kappel                       steve.kappel AT veritas DOT com
VERITAS Software (Engineering)