HP MPX200 Multifunction Router - Manual (Page 158)

Table 18 Configuring EMC PowerPath on HP-UX (continued)
On the HP-UX host after zoning in the router presented target controller (for example,
Port A), issue the following commands:
ioscan
insf -e
Adding router path for the
removed controller port (for
example, Port A)
The powermt display dev=all command lists the additional path to the same
LUN along with the direct path.
The powermt display dev=all command displays the path state as dead. The
other active and alive router path continues the I/O. Removing second direct path
from controller port (for
example, Port B)
On the HP-UX host after zoning in the router presented target controller (for example,
Port B), issue the following commands:
ioscan
insf -e
Adding router path for the
removed controller port (for
example, Port B)
The powermt display dev=all command lists the additional path to the same
LUN along with the first router path.
These validations use the method described in “Zoning in presented targets: Method 1” .
Alternatively, you can use the method described in “Zoning in presented targets: Method 2” .
Table 19 Configuring native multipathing on HP-UX
HP-UX 11.31 OS
Native Multipathing Multipathing software
Pre-migration setup 1. To verify that multiple paths exist, issue the scsimgr LUN_map command.
The Last open or closed State of the path is either active or standby, based on the
LUN ownership and array type.
2. Use the multipath disk to create a volume group, for example:
vgcreate vg1 /dev/rdisk/disk79
Verify that more than one path exists by issuing the scsimgr lun_map command.
The Last open or closed State of the path shows as either active or standby, based the
LUN ownership and array type. Multipath installation
verification
Validations during router insertion process
Zone out the first direct path from the active zone set on the FC switch. The Last open
or closed State of the path changes to FAILED and the I/O will failover to the redundant
active path. Removing first direct path
from controller port (for
example, Port A)
Adding router path for the
removed controller port (for
example, Port A) 1. On the HP-UX host after zoning in the router presented target controller (for example,
Port A), issue the ioscan command.
2. Issue the scsimgr lun_map command and verify that the newly added path is
shown as either active or standby.
Zone out the second direct path from the active zone set on the FC switch. The Last
open or closed State of the path changes to FAILED and the I/O will failover to the Removing second direct path
from controller port (for
example, Port B)
other active paths. Because there are no direct paths, I/O will failover to the router
pre-sented path.
Adding router path for the
removed controller port (for
example, Port B) 1. On the HP-UX host after zoning in the second router presented target controller (for
example, Port B), issue the ioscan command.
2. Issue the scsimgr lun_map command and verify that the newly added path is
shown as either active or standby.
These validations use the method described in “Zoning in presented targets: Method 1” .
Alternatively, you can use the method described in “Zoning in presented targets: Method 2” .
158 Configuring the data path through MPX200 for online data migration