Hitachi Dynamic Link Manager Software Users Guide for AIX

# rmpath -d -l device-name -p fscsi-number -w connection-position
The following example deletes the path whose OS-management-path-ID
is 2:
# rmpath -d -l hdisk10 -p fscsi5 -w
50060e800436e240,6a000000000000
4. Check that the path has been deleted.
# /usr/DynamicLinkManager/bin/dlnkmgr view -drv
Deleting a Path (of a Device Included in rootvg)
The following shows an example of deleting a path of hdisk0 in an
environment where rootvg consists of hdisk0 and hdisk1.
1. Delete a path of a volume group other than rootvg by performing the
procedure described in
Deleting a Path (of a Volume Group Other than
rootvg) on page 4-22:
2. Check the list of current boot disks.
The following shows an example of executing the command:
# bootlist -m normal -o
hdisk0 blv=hd5
-
hdisk1 blv=hd5
...
3. Specify a boot disk according to the host environment to be used.
The following shows an example of executing the command:
# bootlist -m normal hdisk0 hdisk1
4. Make sure that the boot disk is configured with the specified number of
paths.
The following shows an example of executing the command:
# bootlist -m normal -o
hdisk0 blv=hd5
hdisk1 blv=hd5
...
Replacing an HBA
If there are multiple active paths for an LU, you can replace a desired HBA
while running your applications by placing offline only the path that goes
through the HBA to be replaced and using other paths to continue access.
To replace an HBA:
1. Execute the following command to find the fscsi number that
corresponds to the HBA that is to be replaced:
# lsdev -C | grep fscsi
HDLM Operation
4-23
Hitachi Dynamic Link Manager (for AIX) User Guide