Installation and Reference Guide HP StorageWorks Secure Path 3.0F Service Pack 4 for HP-UX 11i v1.0 and 11i v2.0 (5697-8001, March 2009)

During the boot process, device special files are created for each logical unit configured on the
Active-Passive controller and are assigned to each LUN or virtual disk configured on the Active-
Passive controller. Because Secure Path is not yet installed, you should see an instance of a LUN
for every path to the array. For example, if you have 2 adapters, 2 switches, and 2 connections
from each switch to the array, you have 4 distinct device instances (paths) to each LUN that is
configured on the array.
2. Before installing Secure Path, verify that you can see all your Active-Passive storage devices by
entering the following command:
# ioscan -fnk
If you do not see all or part of the new LUNs following the ioscan command, perform the pro-
cedure described in What to do if ioscan does not see all paths to the array. This anomaly results
from HP-UX tables that are used by the OS to maintain accurate I/O system persistence across
reboots and is not a cause for concern.
Table 4 shows a normal array with a single LUN.
Table 4 Example of a normal array with a single LUN
DescriptionH/W typeS/W stateDriverH/W pathIClass
Local PCI Bus Adapter
(782)
BUS_NEXUSCLAIMEDlba0/21Ba
HP Tachyon TL/TS FibreINTERFACECLAIMEDtd0/2/0/00Fc
Channel Mass Storage Adapter
/dev/td0
FCP DomainINTERFACECLAIMEDfcp0/2/0/0.10fcp
FCP Device InterfaceINTERFACECLAIMEDfcpdev0/2/0/0.1.18.255.07ext_bus
DEVICECLAIMEDtgt0/2/0/0.1.18.255.0.07target
DEC HSG80DEVICECLAIMEDsdisk
0/2/0/0.1.18.255.0.
0.0
239disk
/dev/dsk/c7t0d0 /dev/rdsk/c7t0d0
FCP Device InterfaceINTERFACECLAIMEDfcpdev0/2/0/0.1.19.255.09ext_bus
DEVICECLAIMEDtgt0/2/0/0.1.19.255.0.08target
DEC HSG80DEVICECLAIMEDsdisk
0/2/0/0.1.19.255.0.
0.0
241disk
/dev/dsk/c9t0d0 /dev/rdsk/c9t0d0
Local PCI Bus Adapter
(782)
BUS_NEXUSCLAIMEDlba0/42ba
HP Tachyon TL/TS FibreINTERFACECLAIMEDtd0/4/0/01fc
Channel Mass Storage Adapter
Secure Path for Active-Passive disk arrays28