Earlier this year, we restored data backed up on HPUX with NetBackup to
an IBM RS6000 without NetBackup simply by reading the tar image. As the
previous poster mentioned, you do have to skip the volume header, and
you might also have to skip over other backup images to get to the one
you want (does BackupExec put multiple images on a tape?). I also seem
to remember reading that even at the beginning of the backup image there
is a short image header that you might have to skip using FSR instead of
FSF.
Steven Jenner wrote:
>Cheers guys,
>
>That sounds like a good option; I will try that on a test server
>tomorrow.
>
>Thanks again for all of our help.
>
>Cheers,
>
>Steve.
>
>-----Original Message-----
>From: Charles Ballowe [mailto:cballowe AT gmail DOT com]
>Sent: 22 September 2005 17:55
>To: Piszcz, Justin
>Cc: Steven Jenner; veritas-bu AT mailman.eng.auburn DOT edu
>Subject: Re: [Veritas-bu] Restore of Netbackup image to Backup Exec
>server???
>
>you need to skip the media header ... so it would be mt fsf 1
>/dev/nrmt/whatever (note that you MUST use the no-rewind device -
>otherwise it fastforwards and instantly rewinds)... except this is
>windows and I don't know the equivalent of mt or the tape drive device
>to give the recommendation on what to do. Once you're positioned on
>the image, tar xvf would do it - you might need to do something to set
>the extract directory as well, so it doesn't start overwriting from /
>
>-Charlie
>
>On 9/22/05, Piszcz, Justin <jpiszcz AT servervault DOT com> wrote:
>
>
>>Usually just tar xvf /dev/st0 or whatever your tape device is.
>>
>>-----Original Message-----
>>From: veritas-bu-admin AT mailman.eng.auburn DOT edu
>>[mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu] On Behalf Of Steven
>>Jenner
>>Sent: Thursday, September 22, 2005 10:49 AM
>>To: Charles Ballowe
>>Cc: veritas-bu AT mailman.eng.auburn DOT edu
>>Subject: RE: [Veritas-bu] Restore of Netbackup image to Backup Exec
>>server???
>>
>>Hi Charles,
>>
>>That sounds like it may be an ideal solution. As I have no experience
>>
>>
>of
>
>
>>extracting data written in GNU tar format, do you have details on the
>>best way to achieve this or can you point me in the right direction?
>>
>>The data on the tape isn't multiplexed and is one large 126 GB data
>>
>>
>file
>
>
>>taken from a Windows 2003 server.
>>
>>Thanks in advance,
>>
>>Steve.
>>
>>-----Original Message-----
>>From: Charles Ballowe [mailto:cballowe AT gmail DOT com]
>>Sent: 22 September 2005 15:17
>>To: Steven Jenner
>>Cc: veritas-bu AT mailman.eng.auburn DOT edu
>>Subject: Re: [Veritas-bu] Restore of Netbackup image to Backup Exec
>>server???
>>
>>If it's not a multiplexed backup and if you don't need to restore to a
>>server other than the one with the tape drive attached, you can do the
>>restore with gnu tar (send the binary out of a netbackup install --
>>since they're based on the GNU tar, it should be covered by the GPL.
>>There might be some tricks if it's not one large backup piece, but
>>otherwise, it works -- i've done it. Yay for using industry standards
>>for data on tape :)
>>
>>-Charlie
>>
>>On 9/22/05, Steven Jenner <Steven.Jenner AT psinet.telstra.co DOT uk> wrote:
>>
>>
>>>
>>>Hi All,
>>>
>>>
>>>
>>>I believe I already know the answer to this but thought I would ask
>>>
>>>
>>the
>>
>>
>>>knowledgeable people here to confirm.
>>>
>>>
>>>
>>>I have produced a backup image of a 120 GB file on a LTO 2 tape
>>>
>>>
>using
>
>
>>>Netbackup Enterprise 5.1, the intention was that this tape would be
>>>
>>>
>>sent to
>>
>>
>>>an offsite location and the file would be restored to a remote
>>>
>>>
>system.
>
>
>>It
>>
>>
>>>transpires that the system at the other end is not a Netbackup
>>>
>>>
>>Enterprise
>>
>>
>>>environment but rather a Veritas Backup Exec 9.0 and surprise
>>>
>>>
>surprise
>
>
>>the
>>
>>
>>>other engineer cannot restore the file.
>>>
>>>
>>>
>>>My understanding is that you can restore a Backup Exec image to
>>>
>>>
>>Netbackup
>>
>>
>>>Enterprise but not the other way round, is that correct?
>>>
>>>
>>>
>>>If anyone out there has any suggestions as to how to complete this
>>>
>>>
>>restore
>>
>>
>>>(short of installing Netbackup at the remote site) please forward
>>>
>>>
>them
>
>
>>on
>>
>>
>>>also.
>>>
>>>
>>>
>>>Thanks in advance,
>>>
>>>
>>>
>>>Steve.
>>>
>>>
>>_______________________________________________
>>Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
>>http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
>>
>>
>>
>
>_______________________________________________
>Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
>http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
>
>
--
Jack L. Forester, Jr.
UNIX Systems Administrator, Stf
Lockheed Martin Information Technology
(304) 625-3946
|
