HP Hitachi Dynamic Link Manager Software - Manual (Page 389)

The path name indicates a path. When you modify the system
configuration or replace a piece of hardware, you should check the path
names to identify the paths that will be affected by the change.
A path name consists of the following four elements, separated by
periods:
¢
Host port number (hexadecimal)
¢
Bus number (hexadecimal)
¢
Target ID (hexadecimal)
¢
Host LU number (hexadecimal)
This path name is also the same as PathName displayed by the
command's view operation. For details on the path name, see view
(Displays Information) on page 6-30 .
DNum
A Dev number, which is equivalent to a partition number in Linux.
A device number beginning from 0 is assigned to the device in the LU.
In Linux, this value is fixed to 0.
This is the same as the DNum that is displayed by the view operation. For
details on the view operation, see view (Displays Information) on page
6-30 .
HDevName
The name of the host device.
The logical device file name of the HDLM device to which access is made
by way of the path, minus the partition number, is displayed in the format
sddlm[aa-pap] (for example, sddlmaa, or sddlmaaa). For details on logical
device files for HDLM devices, see Logical Device Files for HDLM Devices
on page 2-11 .
This is the same as the HDevName that is displayed by the view operation.
For details on the view operation, see view (Displays Information) on
page 6-30 .
What To Do for a Path Error
When a path error is detected, HDLM performs a failover on the path and
outputs the KAPL08022-E message. This message indicates that an error has
occurred in the components, shown in the following figure, that make up the
path.
Troubleshooting
5-3
Hitachi Dynamic Link Manager User Guide for Linux ®