Temporarily disable STMS/MPXIO for maintenance

Hi-
Looking for advice. I have six active/active arrays using STMS/MPXIO, Sun/Qlogic FC4 hbas and V40z's running S10_U3 x86. Each array has 84 LUNs, with 8 paths, presented to around 20 hosts. Periodically I need to bring down one of the arrays for maintenance (firmware upgrades). When the array is offline STMS/MPXIO generates lots of inquiriy traffic trying to get the paths back online. During a particulary nasty maintenance cycle, my Oracle RAC system (connected thru the same SAN) paniced since it was taking too long to get to the Oracle device.
During my maintnenance cycles I'd like to disable MPXIO for the particular array, so that the retry/inquiry traffic is suppressed and will allow my other arrays to continue production.
I think I could use luxadm disable /dev/rdsk/cXtYdZs2 for the mpxio devices of all luns in that array (create a sceript to do this) and follow up with an enable after the work is done.
I'd like to know if anyone has done something like this and if it is also something I could do with the new mpathadm command that is/will replace the luxadm command.
Thanks
Dom Burns

See Cloud Control Administrator’s Guide: 1.3.6 Blackouts
http://docs.oracle.com/cd/E24628_01/doc.121/e24473.pdf

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