HP Hitachi Dynamic Link Manager Software Licenses - Manual (Page 636)

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 9900V series, Hitachi USP series, Universal Storage Platform V/VM
series, Virtual Storage Platform series, VSP G1000 series, Hitachi AMS2000 series
# ,
Hitachi SMS series # , HUS100 series # , or HUS VM is in use, all paths are owner paths.
(See also: owner controller, non-owner path)
#: This storage system applies when the dynamic I/O path control function is disabled.
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.
R
reservation
The reservation function enables a host to declare that it has exclusive rights to use a
particular LU, and prevents other hosts from accessing that LU. Access permission for
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Glossary-6
Hitachi Dynamic Link Manager (for Solaris) User Guide