HPAV enabling procedure

Hi,

I have one simple question according enabling HPAV on DMX-3. Is this procedure (on DMX-3) on-line for z/OS point of view ?

In EMC white paper ‘Exploiting HyperPAV in EMC Symm Environments’ there is information that disc director should be offline for each LSS. So, in fact the question is: is it possible to do it without stopping I/O ?

Just in case: we have proper CU emulation (C2107), proper microcode level and we are using dynamic PAV.

Regards

Marcin