Restore a volume partition ?

 

Hi;

 

We have an urgent problem; we have a big ip 8900 with 2 hard disk with LVM and RAID , also we have system 11.1.0 HF2, and our hard disk is represented as three volume:

 

MD1.1

 

MD1.2

 

MD1.3

 

and I inform you that during the procedure of upgrade from 10.2 to 11.1.0 our administrator has made a misconfiguration system , in effect, he has remove a volume patition MD1.1.

 

My question is: how can I restore the volume MD1.1 ?