hp ux server unable to identify vg disks from san array

[70amxster]

This system has been up and running till we had a power outage, after the power outage we had a linux server not come back because of an fsck required rel5.  Upon further investigation we have three other servers hpux that booted but could not see the vg groups off the san array.  I have ran ioscan -fnCdisk, it picks up the two local drives but nothing off the san array.  The san switch seems to be fine and right now I am at a loss. any help would be greatly appreciated. Dont know much on the san arrays, but it appears that the array for some reason is not extending the virtual disks out to the network?

[PSPrakash]

Hello

You may involve an SAN/Storage expert to see those LUNs are assinged to the Host properly.
Also enure switch can see the HBA Port and Zone configurations too.