Hitachi XP P9500 User Manual page 625

F
failback
A function for placing the status of a path recovered from an error into the Online
status, and then switching the access path to the path that was just recovered.
failover
A function for switching to another normal path if there is an error in the current access
path, thereby enabling the system to continue to operate.
FC-SAN (Fibre Channel - Storage Area Network)
A SAN using Fibre Channel.
H
HBA (Host Bus Adapter)
Device that functions as an interface connecting a host with external devices.
In this manual, the term HBA refers to an interface card installed in a host, in
configurations where the host and storage units are connected via a FC connection.
HDLM alert driver
A program that receives information about an error detected by the HDLM driver, and
then reports the error information to the HDLM manager.
HDLM driver
A program that controls all the HDLM functions, manages paths, and detects errors.
HDLM manager
A program that manages error information. The HDLM manager receives error
information from the HDLM alert driver and then collects error logs.
host
A generic term for both servers and clients.
host device
A logical area in a host LU.
(See also: host LU, host device name)
host device name
A name assigned to a host device. A name of the logical device file for an HDLM device
is assigned to a host device name.
host LU
An LU that a host recognizes. The actual HDev entity is a Dev in the storage system.
Each host LU has a host LU number.
# A B C D E F G H I J K
Hitachi Dynamic Link Manager User Guide (for Linux(R))
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Glossary-3
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