HP XP P9500 Storage - Manual (Page 207)

PathName
The path name, which indicates a path. When you modify the system
configuration or replace a hardware item, 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:
¢
HBA adapter number or adapter type (character string)
¢
Bus number or adapter number (character string)
¢
Target ID (hexadecimal)
¢
Host LU number (hexadecimal)
This path name is also the same as PathName displayed by the dlnkmgr
command's view operation. For details on the path name, see view
(Displays Information) on page 6-33 .
DNum
A Dev number, which is equivalent to a logical volume number in AIX.
A Dev number beginning from 0 is assigned to the Dev in the LU.
In AIX, this value is fixed to 0 because one LU contains one Dev.
This is the same as the DNum that is displayed by the dlnkmgr command's
view operation. For details on this operation, see
view (Displays
Information) on page 6-33 .
HDevName
The name of the host device.
Hdisk name is displayed.
This is the same as the HDevName that is displayed by the dlnkmgr
command's view operation. For details on this operation, see view
(Displays Information) on page 6-33 .
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 AIX ®