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Remote Backup

Sebastian_23
Occasional Contributor

Remote Backup

Hi...

I have to make a backup and the machine hasn´t got a tape drive. So I thought (like in SUN) to make a remote backup.

But it couldn´t be possible. I got the following answer:
seb085:vdump 0uf seb087:/dev/nrmt0h /in
vdump: can't open dev <>; [2] No such file or directory

So It's supposed to make a backup via NFS?.

Thks in adva
10 REPLIES
Michael Schulte zur Sur
Honored Contributor

Re: Remote Backup

Hi,

if the tru64 machine has os 5.x then the tape devices are in /devices/(n)tape

greetings,

Michael
Ravi_8
Honored Contributor

Re: Remote Backup

Hi,

you are right. Mount the file system to be backed up using NFS to Tru64 machine.
then use either tar,cpio,dd,or vdump to backup
never give up
Michael Schulte zur Sur
Honored Contributor

Re: Remote Backup

Can you post how you tried to do it?

thanks,

Michael
Ralf Puchner
Honored Contributor

Re: Remote Backup

why so complicated?

# rsh remotealpha '/sbin/vdump -0 -u -b 60 -f - /fileset' | dd of=/dev/nrmt0h bs=60k
# rsh dumphost 'dd if=/dev/nrmt0h bs=60k'|vrestore -x -v -f -

in v5.x you must use the devices michael suggest instead of /dev/nrmt0h
Help() { FirstReadManual(urgently); Go_to_it;; }
Sebastian_23
Occasional Contributor

Re: Remote Backup

Hi,

This is the command:
rsh seb087 '/sbin/vdump 0uf /dev/nrmt0h' /in

And as Ralf said I tried the "rsh" and it is working ok, I've just make a test and it's going ok.

I checked de status of my tape drive, just for the /dev/ntape/rmt0h and for the /dev/nrmt0h and te status is the same, is there any problem if I use the second one?

Thks Everybody
Michael Schulte zur Sur
Honored Contributor

Re: Remote Backup

Usually it is under 4.x
/dev/nrmt0h
under 5.x
/dev/ntape/nrmt0h

If the status is the same, it should not be a problem. Did you upgrade the os or use MAKEDEV to create the old style tape devices?

You are backing the sun on the alpha tape, right?

hth,

Michael
Sebastian_23
Occasional Contributor

Re: Remote Backup

Michel,

Just I´ve installed a SMF Active & SLEE in this Alpha DS15.
The point is that this machine hasnt got a tape drive, so I have to make the backup into de PSMF, another machine.

My doubt was because I was told to use the /dev/nrmt0h not to rewind and I used it, and it worked ok. I was a little confused with the example about OS 5.X, but it´s ok no problem with this.

Thks ag
Ralf Puchner
Honored Contributor

Re: Remote Backup

norewind device is necessary if you want to create more than one saveset per tape otherwise tape will be rewind after end of saveset.
Help() { FirstReadManual(urgently); Go_to_it;; }
Matt Palmer_2
Respected Contributor

Re: Remote Backup

Hi,

could you not use 'rvdump', to save having to create NFS mounts,etc. this would allow you to use a tape device not on your local machine

Ralf Puchner
Honored Contributor

Re: Remote Backup

rvdump is not part of all Tru64 distributions and the rsh method works with every version.
Help() { FirstReadManual(urgently); Go_to_it;; }