Hi my freinds

I have a Vnx 5300 with 4 Pools.Luns Presented only to VMware Esxi 5.5 hosts.I have four BL660C and about 20 DL 380 G8 and G7.

all of my Blade Hosts (Except one of them) went to Not responding state and and Vms disconnected in Vcenter.This Problem was happened During OE Upgrade and after rebooting second SP(it was occured in the middle of DAE Update) but my DL hosts didn't get into any trouble.some Vms which is hosted on Blade servers works fine and some of them didn't.

Worthwhile to mention Even I couldn't connect to Esxi host directly by Vsphere Client.

I tried to Restart Management Agent by DCUI but after 5 hours one of them get back but it didn't work for other hosts.

would you please let me know what did happened during this update?why my hosts went to not responding state?

P.S:Also four NLSAS Disks's LED change to amber LED.

thanks in advanced