Hp Hitachi Dynamic Link Manager Software Manual de usuario Pagina 164

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3. Creating an HDLM Environment
140
3.6 Checking the Path Configuration
HDLM functions, such as load balancing and failover, are only available for HDLM
management-target devices that have more than one active path. After you install
HDLM or change the hardware configuration, check the structure and statuses of the
paths.
To check the path information, use the
dlnkmgr command's view operation or use the
Path List view in the Path Management window of the HDLM GUI. For details about
the Path List view, see the HDLM GUI Help.
The HDLM command's
view operation to check path information is described below.
For details about the
view operation, see 6.7 view (Displays Information).
Specify the
-path parameter and check the output information:
Execute the following command:
>dlnkmgr view -path >
redirect-destination-file
Open redirect-destination-file-1 and check the following:
Make sure that there is at least one LU being accessed by a path.
A path can be identified by
PathName. The LU that is accessed by a path can
be identified by both
DskName and iLU.
Make sure that all the paths are online.
Make sure that
PathStatus is Online. If a path is not online, Reduced
will be displayed.
Make sure that for each path the combination of the CHA port (
ChaPort),
through which multiple paths are accessing the same LU, and the HBA port
(the host port number and bus number displayed in the
PathName column)
is different.
The number to the left of
PathName is the host port number. The numbers
displayed between the period to the right of the host port number and the
following period is the bus number.
Make sure that there are different host port numbers and bus numbers for
each physical HBA port.
If the system cannot be configured in a multi-path configuration, perform the
following operations:
1. From the Device Manager window of Windows, select Disk drives, and then
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