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  2. MIDRANGE-L
  3. September 2003

RE: Network backups



The client wants one of the machines only if possible to be used as the machine that has tapes changed, as the other machine is located in a remote part of the site. Thus one machine will backup the local replicated copy of the remote machine to a local tape drive, and also backup the remote replicated copy of its own data back across the wire onto a local tape drive.

At this stage we are investigating whether it is feasible to do what they want to do, as they come from a unix background and like the idea of rmt tar across systems; this could be a show stopper for the AS/400s as it is something the client feels the AS/400's should be able to do.

I can't answer your exact question, but if it's simply that the client wants to be able to have the AS/400 send over an archive file, there are probably some options. I was just reading the September 2003 Iseries news, and they have an interesting article about the different IFS systems.

According to the article, there are ten types of filesystems that the AS/400 supports. One is NFS. An AS/400 can act as an NFS client. "This means that [an AS/400] can mount NFS shares in the NFS and read and write them as if they were locally stored". Using this kind of file system, one could presumably share files with a remote unix machine.

The other interesting one is QFileSvr.400 which "provides transparent access to file systems that are present on remote iSeries". Using this kind of file system, one could presumably share files with a remote iSeries machine.

So, CPY OBJ('/qsys.lib/qgpl.lib/mysavefile.savf') TODIR('QFileSvr.400/TheOtherSystem/Somewhere') /* I think! */

I also wonder if one could:
SAV DEV('/qsys.lib/tap01.dev') OBJ( ('/QFileSvr.400/SomeOtherMachine/SomeOtherDir/*')) /* Maybe... */

Unfortunately, I haven't gotten to try out either file system, so I can't tell you more than that. I'm sure the experts on this list can say for sure.

Regards,
Rich


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