disk striping

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Hello,
 
I use lvm in a mainframe environment, with small ECKD disks (maximum model 54, aprox. 45 GB). So to create a big volume a I need a lot of disks. I'm going to create one with 35 physical volumes. I have doubts about striping, particularly deciding the number of stripes in such case (35 PVs in one storage array rank -yeah, not good-), and the drawbacks in administration tasks ( growing and limitations adding pvs to a stripped volume).
 
 
The use of striping is recommended because of performance improvement:
 
http://www-128.ibm.com/developerworks/linux/linux390/perf/tuning_rec_dasd_volMan.html
 
 
Thanks for your suggestions
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