HP MPX200 Multifunction Router - Manual (Page 153)

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” .
Windows 2008 and Windows 2003 OS
Array-specific MMC
nl
Multipathing software
EMC PowerPath
nl HDLM
nl HP MPIO
nl IBM RDAC
nl NetApp Data Motion
Install the DSM-MPIO (device-specific module) according to the installation steps in the
DSM installation manual. Pre-migration setup
Verify the paths and status by issuing DSM commands (refer to the DSM user manual
for the multipath management commands). Multipath installation
verification
Validations during router insertion process
Zone out the first direct path from the active zone set on the FC switch. The path status
for the path belonging to the zoned out controller port (for example, Port A) is shown
as failed in the DSM GUI on the host. Removing first direct path
from controller port (for
example, Port A)
The newly added path appears online and active on the host in the DSM GUI. Depending
upon the policy settings, part of host I/O may start flowing through the path presented Adding router path for the
removed controller port (for
example, Port A)
by the router. To verify, issue the show perf byte command on the router to view
the traffic flowing through the router ports.
The path status for the path belonging to the zoned-out controller port (for example,
Port B) is shown as failed in the DSM GUI on the host. The entire host I/O now must Removing second direct path
from controller port (for
example, Port B)
flow through the router. Verify that the show perf byte command shows the I/O
flowing through the router.
The host initiator port is seen as online and logged in on the router CLI and HP
StorageWorks mpx Manager. The newly added path appears online and active on the Adding router path for the
removed controller port (for
example, Port B)
host in the DSM GUI. Depending upon the policy settings, part of the host I/O may
start flowing the new path presented by the router.
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” .
Linux multipath configuration
Table 13 Configuring native device Mapper-Multipath on Linux
Linux: RHEL 4 and 5, SLES 10 and 11 OS
Native Device Mapper-Multipath Multipathing software
Enable the multipath service on the Linux host. Ensure that the /etc/multipath.conf
entry for the array is as recommended by the vendor. Pre-migration setup
Issue the multipath -ll command and verify that multiple paths exist for the multipath
device mapper disk. Multipath installation
verification
Validations during router insertion process
The status for the path belonging to the zoned-out controller port (for example, Port A)
is shown as failed or faulty in the multipath -ll output on the host.
NOTE: For NetApp, use the NetApp-provided multipath.conf entry, which should be
updated in /etc/multipath.conf1.
Removing first direct path
from controller port (for
example, Port A)
The newly added path appears active or ready on the host in the multipath -ll output.
Depending on the policy settings, part of the host I/O may start flowing through the Adding router path for the
removed controller port (for
example, Port A)
path presented by the router. To verify, issue the show perf byte command on the
router, which shows the traffic flowing through the router ports.
Linux multipath configuration 153