HP Hitachi Dynamic Link Manager Software - Manual (Page 481)

B. Glossary
457
In Windows, each LU has only one Dev.
Each Dev has a Dev number.
(See also: Dev number)
Dev number
A Dev number (the DNum column) in the configuration list in HDLM.
0
is displayed as the number indicating the entire LU.
HDLM operates assuming that one LU has one Dev, so the Dev number is always fixed
to
0
.
(See also: Dev)
dynamic reconfiguration
Dynamic reconfiguration enables HDLM to recognize devices whose configuration
has been changed without restarting the host. The plug-and-play operation of Windows
enables this functionality.
E
emulation type
An LU type that is accessible from a host. Since an HDLM host is an open-system host
such as a PC or a UNIX computer, the HDLM host can access only the LUs that have
open-system emulation types.
For details on emulation types supported by a storage system, see the maintenance
manual for that particular storage system.
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)
A device that is an interface between hosts and external devices.