No visible LUNs but Xsan components are visible in Disk Utility

Late 2006 iMac Core 2 Duo 2.16GHz 20" , Mac OS X (10.6.6), iPhone 4

Late 2006 iMac Core 2 Duo 2.16GHz 20" , Mac OS X (10.6.6), iPhone 4
No visible LUNs but Xsan components are visible in Disk Utility