HP StorageWorks XP Disk Array Mainframe Host Attachment and Operations Guide (A5951-96154, September 2010)

FICON Fibre connectivity. Hardware that connects the mainframe to the control unit.

HBA Host bus adapter.

HCD Hardware Configuration Definition.

HMC Hardware management console.

host mode Each port can be configured for a particular host type. These modes are

represented as two-digit hexadecimal numbers. For example, host mode 08

represents an HP-UX host.

IOCP Input/output configuration program.

LD, LDEV Logical device. An LDEV is created when a RAID group is carved into pieces

according to the selected host emulation mode (that is, OPEN-3, OPEN-8,

OPEN-9). The number of resulting LDEVs depends on the selected emulation

mode. The term LDEV is also known as term volume.

LPAR Logical partition. A virtual server that can share resources.

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 Logical Unit Size Expansion. The LUSE feature is available when the HP

StorageWorks LUN Manager product is installed, and allows a LUN, normally

associated with only a single LDEV, to be associated with 1 to 36 LDEVs.

Essentially, LUSE makes it possible for applications to access a single large pool

of storage.

LVI Logical volume or image (for example, 3390-3R).

MPLF Multi-Path Locking Facility.

OFC Open Fibre Control.

OPEN-

A general term describing any one of the supported OPEN emulation modes (for

example, OPEN-E. There are two types of OPEN-x devices: legacy OPEN-x

devices with a fixed size (such as, OPEN-3, OPEN-8, OPEN-9, OPEN-E), and

OPEN-V, which has a variable size and is a CVS based volume.

PA Physical address.

path A path is created by associating a port, a target, and a LUN ID with one or more

LDEVs. Also known as a LUN.

PiT Point-in-time.

port A physical connection that allows data to pass between a host and a disk array.

PP Program product.

RAMAC IBM computer with moving head hard disk.

RSCN Registered state-change notification.

Glossary66