remsh and tar

[Daniel Ubeda]

I have 1 server with 1 DLT drive, and I want to read a DLT tape with tar from another server without a DLT drive.
Someone known how do it with remsh or rcmd ?

[Jeff Machols]

You should just be able to do a remsh server1 "tar -tf /dev/rmt/DTLNAME"

[Santosh Nair_1]

there are a couple of ways to do this...the easier is to use GNU's tar...which has support for remote tape devices:

gtar tvf server2:/dev/rmt/0m

The other option is to use something like:

remsh server2 cat /dev/rmt/0m | tar tvf -

Hope this helps.

-Santosh

[Bill Hassell]

For casual data tranfers (a few megs), the remsh approach is probably OK. But since you mentioned DLT, if you're planning on full backups with gigabytes of data, I would be very cautious as the accuracy of massive data transfers with a simple pipe and no checksum verification is dubious at best. And of course, tar cannot backup large files.

A much better choice (for many more reasons) is Omniback, but you can also use the remote magtape features of fbackup too.