HP Hitachi Dynamic Link Manager Software - Manual (Page 235)

4. HDLM Operation
213
# /usr/DynamicLinkManager/bin/dlnkmgr view -path
For details about path information, see 6.7 view (Displays Information).
4.5.6 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.
# /usr/DynamicLinkManager/bin/dlmodmset -o
The following are execution examples:
Lun Reset : off
Online(E) IO Block : on
NPIV Option : off