Checking The Path Configuration - Hitachi XP P9500 User Manual
Hitachi dynamic link manager software user's guide for linux (6.x) (hit5203-96004, october 2011)
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3.17 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
The following describes how to check path information by using the
command's
view
(Displays Information).
Specify the
-path
Execute the following command:
# /opt/DynamicLinkManager/bin/dlnkmgr view -path >
redirect-destination-file-1
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
be identified by both
• Make sure that all the paths are online.
Make sure that
will be displayed.
• Make sure that for each path the combination of the CHA port (
through which multiple paths are accessing the same LU, and the HBA port
(the host port number and bus number displayed in the
is different.
The digits displayed on the left of PathName indicate a host port number. The
numbers displayed between the period to the right of the host port number
and the next period indicate a bus number.
• Make sure that there are different host port numbers and bus numbers for
each physical HBA port.
Specify the
-drv
Execute the following command:
# /opt/DynamicLinkManager/bin/dlnkmgr view -drv >
redirect-destination-file-2
Open redirect-destination-file-2 and check the
dlnkmgr
operation. For details about the view operation, see 6.7 view
parameter and check the output information:
PathName
DskName
is
PathStatus
parameter and check the output information:
3. Creating an HDLM Environment
command's
view
. The LU that is accessed by a path can
and
.
iLU
. If a path is not online,
Online
and
HDevName
operation.
dlnkmgr
Reduced
),
ChaPort
column)
PathName
entries to
Device
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