HP Hitachi Dynamic Link Manager Software - Manual (Page 644)

C. Glossary
622
(See also: owner path, non-owner controller)
owner path
A path that passes through an owner controller for an LU in the Thunder 9500V Series,
or Hitachi AMS/WMS series is in use. A path that passes through a controller other
than an owner controller is called a non-owner path.
When the Lightning 9900 Series, Lightning 9900V Series, Hitachi USP, Universal
Storage Platform V/VM, Virtual Storage Platform, Hitachi AMS2000 Series or
Hitachi SMS is in use, all paths are owner paths.
(See also: owner controller, non-owner path)
P
path
An access path from a host to a storage system. Access to an area within an LU in a
storage system is made via a cable connecting the HBA on the host and the CHA on
the storage system. This cable is a path. Each path has an
AutoPATH_ID
.
(See also: AutoPATH_ID)
path health checking
A function for checking the status of paths at regular intervals.
When an error occurs on a path that was in the
Online
status, path health checking
changes the status of the path to the Offline(E) status.
Path health checking checks only those paths that have the
Online
status.
path name
The path name consisting of the following four elements, separated by periods:
• Host port number (hexadecimal number)
• Bus number (hexadecimal number)
• Target ID (hexadecimal number)
• Host LU number (hexadecimal number)
A path name is used to identify a physical path.
(See also: host LU number)
physical device file
A device file under
/devices
.
physical path
An access path from a host to an LU. A path name is used to identify a physical path.