problem with restore

[David Bear]

On Tue, Jun 12, 2007 at 07:55:28AM -0700, sylvan dacounha wrote:
> dear Krishna,
>    
>   Thanks for your quick reply..
>    
>   can tar be used to backup files on a machine with remote tape drive..??
>   appreciate your help

yes. take a look at tunneling through ssh. I haven't tried the syntax
but it will be something like this.

machineA - system to be backed up
machineB - system with tape unit

from machineA

sudo tar cf - /home | ssh adminuser at machineB dd of=/dev/nrsa0

the '-' on the tar command makes the 'f' go to stdout.
pipe into ssh and on remote machine dd takes stdin and send out using
'of' to /dev/rnsa0 or whatever your tape device is named.

>    
>    
>   regards
>    
>   simon
> 
> Krishnaprasad_K at Dell.com wrote:
>   Hi,
> 
> Have you tried taking backup using tar utility instead of rdump.
> If you take backup and try restore using tar, you may face issues.
> 
> So try to take backup and restore using tar utility.
> 
> tar -zcvf /dev/rmt/0hbn will do backup and 
> tar -zxvf /dev/rmt/0hbn will do a retrieve operation. 
> 
> Also you can verify the content of tape after backup using 
> 
> tar -tzf /dev/rmt/0hbn - it will list the contents of tape. 
> 
> Note :- Make sure that you have rewinded the tape before trying to
> restore.
> 
> There are other utilities available for tape backup for eg/- cpio
> 
> Regards,
> Krishnaprasad
> -----Original Message-----
> From: redhat-list-bounces at redhat.com
> [mailto:redhat-list-bounces at redhat.com] On Behalf Of sylvan dacounha
> Sent: Tuesday, June 12, 2007 3:47 PM
> To: General Red Hat Linux discussion list
> Subject: problem with restore
> 
> Dear ALL;
> 
> I am using REDHAT 9 server and doin a back up on remote tape but the
> restore gives prblem
> 
> 
> let me expalin
> 
> 
> I have a redhad 9 server and my tape drive is on a SUN Solaris server.
> iam backing up the redhat 9 server on the tape drive attached to the
> SUN machine
> thats doin a remote backup
> 
> the tape is dds3 type.
> 
> i use the command from the linux machine to backup on tape attached to
> SUn server
> 
> rdump 0f xx.xx.xx.02:/dev/rmt/0hbn /
> 
> and it backs up succesfully witout any errors
> 
> but i want to restore now
> so from the linux machine i use the command
> 
> restore -if xx.xx.xx.02:/dev/rmt/0hbn
> 
> but it gives me a error message
> 
> Connection to xx.xx.xx.02 established. ----- where xx.xx.xx.02is the
> SUN server IP
> restore: Tape is not a dump tape
> 
> if i use tar command
> 
> tar -tvf xx.xx.xx.02:/dev/rmt/0hbn it says
> 
> tar: This does not look like a tar archive
> tar: Skipping to next header
> tar: Error exit delayed from previous errors
> 
> 
> now if i go to the SUN sparc machine and run tar command 
> 
> tar -tvf /dev/rmt/0hbn
> 
> it says
> tar: directory checksum error
> 
> 
> if i run ufsrestore
> 
> ufsrestore -ivh /dev/rmt/0hbn
> 
> its says
> 
> Verify volume and initialize maps
> Media block size is 20
> Volume is not in dump format
> 
> how can i test my restore .. or which command can i run with swiches
> for a sucessful restore
> 
> 
> also how can i list the contents of tape
> 
> 
> thanks and Regards
> 
> 
> simon
> 
> 
> 
> 
> 
> 
> 
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-- 
David Bear
phone: 	602-496-0424
fax: 	602-496-0955
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