Hi

We have a 3584 with 3 drives; 2 are SCSI attached through a San Data
Gateway
R03, and one drive is direct FC attached to a switch.

We're using this library with a IBM P-Series 610 with one FC adapter.

The problem is that the performance of the 2 SCSI drives attached to the
SDG
is very poor. The FC drive has a good performance and can reach speeds up
to
27MB/s, but the SDG will only reach about 4-5MB/s, which shoulod mean
2-2.5MB/s per drive.

The 3584 drives(both SCSI and FC) are upgraded to the last level of
=66irmware(was done a week ago), and the library is at level 2250.

Is this a know problem with the San Data Gateway? We should at least be
able
to reach about 10-15MB/s thought the SAN Data Gateway.

Appreciates any help I can get.



Best Regards

Daniel Sparrman



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