Data Domain connectivity to IBM iSeries (AS/400) as NFS mount

We are attempting to use a DD-530 as a means of writing iSeries save files to it mounted as an NFS.  I am able to successfully mount the NFS on the iSeries but I have been unsuccessful in being able to perform any operation to the mount from the iSeries.

Does anyone else have the connectivity scenario and the issue that I have described?

Updated 2/10/12 11:33AM CST

What follows is a chronological sequence of iSeries commands and responses from the DDR-530 as captured by the log watch debug/ddfs.info command.

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Iseries command

ADDMFS TYPE(*NFS) MFS('LLA-DD530:/backup') MNTOVRDIR('/ddr/backup')

Iseries Response

File system mounted.

DDR Response

02/10 10:32:53.853 (tid 0x2aaac3025000): mountproc3_mnt_3_svc from 10.10.200.15 succeeded for export point /backup

02/10 10:32:53.853 (tid 0x2aaac3025000): WARNING: MSG-NFS-00008: Rejecting NFS/UDP request from 10.10.200.15 (not supported)!

02/10 10:33:25.170 (tid 0x2aaac3025000): WARNING: MSG-NFS-00008: Rejecting NFS/UDP request from 10.10.200.15 (not supported)!

02/10 10:33:46.170 (tid 0x2aaac3025000): WARNING: MSG-NFS-00008: Rejecting NFS/UDP request from 10.10.200.15 (not supported)!

02/10 10:33:57.340: last message repeated 2 times (tid 0x2aaac3025000 msgs 3)

Iseries command

DSPLNK OBJ('ddr/backup')

Iseries Response

Function not supported by file system.

DDR Response

02/10 10:34:07.841 (tid 0x2aaac3025000): WARNING: MSG-NFS-00008: Rejecting NFS/UDP request from 10.10.200.15 (not supported)!

Iseries command

UNMOUNT TYPE(*NFS) MNTOVRDIR('/ddr/backup')

Iseries Response

File system or directory unmounted.

DDR Response

02/10 10:34:42.194 (tid 0x2aaac3025000): mountproc3_umnt_3_svc called from (10.10.200.15), export point /backup

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The net effect of all that preceded is not being able to read or write to the mounted NFS on the iSeries.

Message was edited by: mkj-lla