How do you use tar for n/w backup

[sreekanthtm]

what is the command to take backup using tar
Iam connected to the server using telnet

Tell me commands for both conditons

1. If the tape device is connected localy to the server
2. If the tape device is connected to another system on the same n/w

[Alan_152 · Accepted solution]

For #1, the syntax is "tar cvf /dev/tape-device /filesystem"

For #2, the tar syntax is the same, but you 1st have to rmount the remote tape drive.

[Ivan Ferreira]

I will suggest the use of "star" instead of tar. It's faster and more easy for remote backups.

With tar

Local backups:

Create
tar cvf /dev/st0 directory directory file ....

List
tar tvf /dev/st0

Extract

tar xvf /dev/st0

Remote backups

Create
tar cvf - | ssh remotehost dd of=/dev/st0

List
ssh remotehost dd if=/dev/st0 | tar tvf -

Extract

ssh remotehost dd if=/dev/st0 | tar xvf -


Using star

Local backups:

star -cv f=/dev/st0 directory directory files ...

Remote backups:

env RSH=/usr/bin/ssh star -cvM f=user@host.dominio:/dev/st0 directory directory files ...

[sreekanthtm]

How can we mount remote tape device
Pls give Syntax

Rgds
Sreekanth