Problem with TAR

[DK Raviraja]

Hello

I have a DLT 40/80 Tape. I wanted to restore thae content through remote machine. ( I dnt have DLT drive in the system where I wnat t restore). I used followng command
rsh i3sn03 dd if=/dev/rmt/2b | tar -xvf -

read: Not enough space
0+0 records in
0+0 records out

where i3sn03 is tha m/c where DAT drive is attched.

I always get not enough memory Why.

I added 1G swap but it gave same error
DLT has about 25G data. My Mount point has 35G fre space.

Can anybody help me


DKR

[Dan Hetzel]

Hi,

The command should work if you use 'remsh' as in:
remsh i3sn03 -n "dd if=/dev/rmt/2b" | tar -xvf -

Best regards,

Dan

[DK Raviraja]

No Luck Friend !

DKR

[Mike Williams_3]

Have you confirmed you can run a trivial command on the remote system? eg remsh hostname ls

If that doesn't work try looking at ~/.rhosts

If that works you might try GNU tar which has remote tarring via rmt. You would need to install on both systems and make sure you have it in the PATH first.

In my experience remote tarring is always a bit suspect. Have you thought of remote mounting the target via NFS?

[Dan Hetzel]

Hi,

Providing remote commands work (.rhosts files OK), try the following:

remsh i3sn03 -n "dd if=/dev/rmt/2b bs=10K" | tar -xvf -

Dan

[Shannon Petry]

I have a interactive script I wrote for users to use any tape device on the network. It simply uses
> /usr/bin/remsh $HOST '/usr/bin/dd -if=/dev/rmt/c?t?d? bs=512b | /usr/bin/tar xvf -'

The problem in HP-UX is "rsh" is restricted shell, and will not work.

Depending on the topology of the network, you could try to add a "-n" to the remsh command.

> /path/remsh -n $HOST 'dd ...'

man remsh should give more.

As long as you can make the TCP/IP connection to the host, there should be no problem with this.


Regards,
Shannon

[Carlos Fernandez Riera]

I agre DAN.

remsh i3sn03 -n "dd if=/dev/rmt/2b ibs=10K" | tar -xvf -

may run
_____

No points for me , thank you.