Disk is retired after enclosure failure test

Hello 
we are testing our 2012 R2 based environment against 3 JBODs . All disks are in one pool and we have 2-way mirror set. 
Virtual disks are also created with special flag to be enclosure aware. 
during our test phase we decided to test enclosure awareness feature by turning one enclosure off ; this worked fine and all virtual disks remained available . however ; some physical disks turned into retired status and a many regeneration jobs kicked in . 
any ideas ? 

I found the culprit . we has a resiliency flag on storage pool set to enabled   ( the one that retires the disk if disk is physically lost connectivity ) , that caused bunch of disks to marked as retired .

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