HI,  Please see primus emc233434 for affinity rules.  From your output, only the below disks have free space more than 8 GB and you are creating 24 Raid 1 devices each of 8.5 GB. Plus, Symm will not create a 2-way mir logical volume from disk free space on teh same drive loop (that is using drives located behind same DA processor slice). I think you should be able to create a lesser number of device though. Try 8.5 GB x 10 devices and see if that gets created? 
Hi friends in our storage environment we have DMX 4, In that we have a disk group of 216 FC Harddisks each of 146 GB.so total disk group capacity is 28Tb ,after loosing some space in formatting.First we configured 2-way-mirror of 12.5 TB,so we utilised 12.5*2=25TB,now in remainig 3TB we configured Raid 5 of 1.7 TB.Now remainig space is 1.3Tb. Now in this space if I am trying to configure again 2-way-mirror,it is not allowing me to create hypers(hyper size is 8.5gb) more than 24,which  is givig me only 8.5*24=200GB.Can anyone explain me why it is not allowing me to create more hypers,as their is 1.3tb free space left?[IMAGE] FYI:IN RAID 5 ALSO HYPER SIZE IS 8.5 GB
UNABLE TO CONFIGURE ENTIRE FREE SPACE IN 2-WAY-MIRROR IN DMX 4