zeroed superblock on raid6

[dragos@xxxxxxxxxxx]

Hi, 
Following a reboot my 9 drive raid6 array refused to assemble. Mdadm told me that some drives had a zero superblock. 
I use the controller on the motherboard and $20 4-port add-on cards. I tried to use some advice found on the net and zeroed all my drives superblocks..... 
What can I do to recover my non-backed-up data? 
I will send you all the logs you need, if any. Just let me know which please.

 Thank you very much for your help.

Dragoş
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