Technical data

HBA Host bus adapter.
host mode Each port can be configured for a par ticular host type. These modes are
represented as two-digit hexadecimal numbers. For example, host mode 08
represents an HP-UX host.
LDEV Logical device. An LD EV is created when a RAID group is car ved into pieces
according to the selected host emulation mode (that is, O PEN-3, OPEN-8,
OPEN-L). The number of resulting LD EVs depends on the selected emulation
mode. The term LDEV is often used synonymously with the term volume.
LUN Logical unit number. A LUN results from mapping a SCSI logical unit number ,
port ID, and LDEV ID to a RAID group. The size of the LUN is determined by the
emulation mode of the LDEV and the number of LDEVs associated with the LUN.
For example, a LUN associated with two OPEN-3 LDEVs has a size of 4,693 MB.
LUSE A LUN is normally associated with only a single LDEV. The LUSE feature allows
a LUN to be associated with 1 to 36 LDEVs. Essentially, LUSE makes it possible
for applications to access a single large pool of storage. The LUSE feature is
available when the HP StorageWorks LUN Configuration Manager product is
installed.
OFC Open Fibre Control.
OPEN-
x A general term describing any one of the supported OPEN emulation m o des
(for example, OPEN-L).
OS Operating system.
PA Physical address.
path Paths are created by associating a port, a target, and a LUN ID with one or
more LDEVs.
port A physical connection that allows data to pass between a host and the disk
array. The number of ports on an XP disk array depends on the number of
supported I/O slots and the number of por ts available per I/O adapter. The
XP family of disk arrays supports Fibre Channel (FC) ports as well as other
port types. Ports are named by port group and port letter, such as CL1-A. CL1
is the group, a nd A is the port letter.
RAID Redundant array of independent disks.
remote console PC The PC running HP StorageWorks Remote Control XP.
Remote Web Con-
sole (RWC)
HP StorageWorks XP Remote Web Console. A browser-based program installed
on the SVP that allows you to configure and manage the disk array.
R-SIM Remote service information message.
SCSI Small computer system interface.
SIM Service information message.
SNMP Simple Net work Managem ent Protocol.
SVP Service pro cessor, which is the PC b uilt into the disk controller. The SVP
provides a direct interface into the disk a rray. SVP use is reserved for HP
support representatives only.
TB Terabyte.
TID Target ID.
Volum e On the XP array, a volume is a
uniquely identified virtual storage device
composed of a control unit
(CU) component and a l o gical device (L DEV)
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Glossary