topic Re: How to read a tape device on a other HP-UX server in Operating System - HP-UX

How to read a tape device on a other HP-UX server

Co van Berkel — Fri, 08 Apr 2005 03:51:16 GMT

Hi,
- Server-1: HP9000/L2000 server with HP-UX 11.00 and a DDS3 drive.
- Server-2: HP9000/rp4440 server with HP-UX 11.11 (11i v1) and a DDS4 drive.

On server-2 we want to read a DDS-1 tape, inserted in the DDS3 tape drive of server-1.

Is this possible?
If yes, how to proceed?

We only can read these DDS-1 tape on the DDS3 drive and not on the DDS4 tape drive.

Regards,
CvB

Re: How to read a tape device on a other HP-UX server

RikTytgat — Fri, 08 Apr 2005 03:56:40 GMT

There is a command named rmt(1M). It is a "remote magnetic-tape protocol module". It is used by frecover and fbackup to create backups on remote tape devices.

Maybe it can help you with what you're trying to do.

Regards,
Rik

Re: How to read a tape device on a other HP-UX server

Leif Halvarsson_2 — Fri, 08 Apr 2005 03:57:25 GMT

Hi,
It depends on the tape format (which application that has created the tape). For example, if fbackup or ftio, you can specify a tape device on a remote system in the command options.

Maybe the most general solution is to restore to a temporary location, create a tar file of the data and ftp to the remote system.

Re: How to read a tape device on a other HP-UX server

Co van Berkel — Fri, 08 Apr 2005 04:05:30 GMT

Hi,
The tape is created on a HPe3000 server and is a backup tape!

We need are in a process of converting a HPe3000 server to Windows, yes Windows.
The tape's created on the HPe3000 aren't readable under Windows.
So want to read the tape's under HP-UX and using "rosetta" convert this to file's who are in a readable format for windows.
Becose we need to read also the old tape's, to ten years ago back, we also has to read DDS-1 tapes.

Regards,
CvB

Re: How to read a tape device on a other HP-UX server

Paul_481 — Fri, 08 Apr 2005 04:08:11 GMT

Hi,

Yes it is possible.

Step 1.

Be sure that both server are defined in the /etc/hosts of each other.

Step 2.

Create an .rhost on server-1.

#cat > .rhost
server-2

Step 3.

Perform the operation you want on server-1 tape drive from server-2.

to check the contents of the tape

#frecover -f server-1:/dev/rmt/0m -I /tmp/log.out

to recover

#frecover -f server-1:/dev/rmt/0m -rv

Hope this helps,

Regards,
Paul

Re: How to read a tape device on a other HP-UX server

Devender Khatana — Fri, 08 Apr 2005 04:11:34 GMT

Hi,

Another way of doing it simply is to mount a File system through NFS on server1 from server2 and extract it to that file system on server1.

HTH,
Devender

Re: How to read a tape device on a other HP-UX server

Co van Berkel — Fri, 08 Apr 2005 05:13:14 GMT

Hi,
Is it possible to mount a remote tape-unit?

The HPe3000 tapes can only be read with "rosetta" and not with "frecover"!

Regards,
CvB

Re: How to read a tape device on a other HP-UX server

Leif Halvarsson_2 — Fri, 08 Apr 2005 05:42:48 GMT

Hi,

I am not sure if I understand you correct.

Server1 and Server2 in your original question is both HP-UX.

But,
"The tape is created on a HPe3000 server and is a backup tape!"

Is "rosetta" a HP-UX utility for reading e3000 (MVS ?) tape format ?

There is no general way in HP-UX to use a remote tape device. It depends on the command if it is possible to specify a remote device or, perhaps use some tricks with remsh and pipes (and, I know nothing about rosetta).

I would recommenend you to try the method in my previous reply, read the media from the local drive to a temporary location, pack into a tar file and transfer with ftp.

Re: How to read a tape device on a other HP-UX server

Co van Berkel — Fri, 08 Apr 2005 05:46:25 GMT

Hi,

1. HPe3000 isn't MVS but MPE/iX.

2. Application "rosetta" is a special application for reading HPe3000 (MPE) tapes on a HP-UX server.

3. Application "rosetta" is installed on server-2 and not on server-1.

Regards,
CvB

Re: How to read a tape device on a other HP-UX server

Leif Halvarsson_2 — Fri, 08 Apr 2005 08:34:57 GMT

Hi,

Sorry for the mistake about MVS/MPE.
Now I understand the problem better.

As I wrote in a previous reply there is no "general" method in HP-UX for using a remote device. It is application-dependant.

Check the documetation for rosetta, does it mention anything about remote devices ?

If not, perhaps a workaround is possible but as I know nothing about rosetta, I am not sure. I belive rosetta is not a standart HP-UX utility, I tried a forum search and found nothing.

As I can see, you have two options.

- Temporary move the DDS 3 drive to Server2.
- Install rosetta also on Server1.

Re: How to read a tape device on a other HP-UX server

G.G.krishnamoorthy — Sun, 10 Apr 2005 01:52:51 GMT

Hi,

DDS4 drive can read tapes written on DDS3,DDS2 drives. Also it can read DDS-1 90 meter tape.

Considering this, the best option left out is to install DDS3 drive temporarily.

- Krishna

Re: How to read a tape device on a other HP-UX server

Co van Berkel — Mon, 11 Apr 2005 01:58:39 GMT

Hi,
Thanks for your answers.
What we already expected, temporary install the DD3 seems to be for us the best option.

Regards,
CvB

Re: How to read a tape device on a other HP-UX server

Co van Berkel — Mon, 11 Apr 2005 01:59:03 GMT

Close thread.