HP XP Racks - Manual (Page 195)

Depending on the NPIV option setting for the dlmodmset utility checked in
step 1, execute one of the following commands:
¢
If the NPIV option is set to off:
Specify the HBA adapter number and bus number, and then execute
the command shown below. The following example shows how to
place the path in Offline (C) status when the path goes through an
HBA whose HBA adapter number is 08 and whose bus number is 11:
# /usr/DynamicLinkManager/bin/dlnkmgr online -hba 08.11
¢
If the NPIV option is set to on:
Use the fscsi number to execute the command below. The following
example shows how to place the path in Offline (C) status when the
path goes through fscsi number 1 (fscsi1):
# /usr/DynamicLinkManager/bin/dlnkmgr online -hba 00.01
5
.
Execute the following command to check the path information:
# /usr/DynamicLinkManager/bin/dlnkmgr view -path
For details about path information, see view (Displays Information) on
page 6-32 .
Replacing a Fibre Channel Switch
If there are multiple active paths for an LU, you can replace a desired Fibre
Channel switch while running your applications by placing offline only the
path that goes through the Fibre Channel switch to be replaced and by using
other Fibre Channel switches to continue access.
Note
The following procedure is only for replacing a Fibre Channel switch.
To replace a Fibre Channel switch:
1
.
Execute the following command to find the fscsi number that
corresponds to the path that goes through the Fibre Channel switch that
is to be replaced (the path that goes through the HBA to which the Fibre
Channel switch is connected):
# lsdev -C | grep fscsi
The following are execution examples:
fscsi0 available 1H-08-02 FC SCSI I/O controller protocol device
fscsi1 available 11-08-02 FC SCSI I/O controller protocol device
In the second line of the above examples, 11 in 11-08-02 indicates the
bus number and 08 indicates the HBA adapter number. If the Fibre
Channel switch is connected to this HBA, the corresponding fscsi
number is 1.
2
.
Execute the dlmodmset utility for setting the HDLM execution environment
ODM to check the NPIV option setting.
HDLM Operation
4-29
Hitachi Dynamic Link Manager User Guide for AIX®