I have a hpux that already connected to hp va array and eva array.Switch is hp OEMed brocade,no zoning is configured.A new CX400 is connnected to switch, and hpux can discover all the luns,everything seems ok.

there is the problem:
We changed the share memory size for app,then reboot. hpux can not boot up after 2-3 hr, and stoped at "VxVM starting in boot mode...". when we disconnect the cx400,hpux boot normal.

No separate HBA used to connect different arrays,HBA is A6795A.
HEAT is been checked, no specail issue is founded.
"HBA Driver is B.11.11.09"
" NOTICE : Fibre Channel Mass Storage Patch patch PHKL_28984 is installed on this host.
NOTICE : Fibre Channel Mass Storage minimum patch requirement PHKL_22874 is met. (Latest patch is PHKL_34161.)

NOTICE : SCSI IO Subsystem Cumulative Patch patch PHKL_23666 is installed on this host.
NOTICE : Latest PHKL_23666 SCSI IO Subsystem Cumulative patch is installed.

NOTICE : SCSI IO Cumulative Patch patch PHKL_30510 is installed on this host.
NOTICE : SCSI IO Cumulative minimum patch requirement PHKL_29047 is met. (Latest patch is PHKL_34815.)"