Were you running ExtendedFabric on the old switch?  If so, is it setup on
the new switch ports for the ISL's over the dwdm?

Check for port errors on the vtl connection  and isl links.

Rick





             woodbm
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             .EDU>                     Migration to a new SAN Switch


             03/11/2010 02:26
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Hello all,

I need some help.  I recently moved to a new Brocade SAN switch running 4
GB.  My copy pools, which interface through a SAN switch and down the DWDN
to get to my copy pool library which interfaces the same way, are running
very poorly.  They average around 7 MB/s.  Prior to the move we were
running around 40 MB/s.  I am using a EMC EDL4100 VTL.  I have run
diagnostics on the library and that doesn't seem to be the issue.  It has
to be some setting on the new switch, however I am not a SAN expert.  We
are running TSM 5.5.2 on AIX 6.1.  I would appreciate any suggestions you
may have.

Thanks
Bryan

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