HP XP P9500 Owner's Manual page 101

ESW
failover
FBA
FC-AL
fence level
Fibre Channel
Fibre Channel Loop
FICON
HBA
HCD
HDD
LDKC
LUN
LUSE
M-VOL
MCU
OPEN- x
P-VOL
parity group
path
PAV
PCB
PDEV
PDP
PDU
port
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3390-M: 55.689 GB
3380-3 2.377 GB
Express switch adapter.
The process that occurs when one device assumes the workload of a failed companion device.
Failovers can be planned or unplanned.
Fixed-block architecture.
Fibre Channel Arbitrated Loop.
A method of setting rejection of P9000 or XP Continuous Access write I/O requests from the host
according to the condition of mirroring consistency.
A data transfer architecture designed for mass storage devices and other peripheral devices that
require high bandwidth.
An enclosure that provides twelve-port central interconnect for Fibre Channel Arbitrated Loops
following the ANSI Fibre Channel drive enclosure standard.
Fibre connectivity. An FC layer 4 protocol used to map mainframe channel command and data
I/O operations onto standard FC infrastructure, protocol, and FC services.
Host bus adapter.
Hardware Configuration Definition.
Hard disk drive.
Logical disk controller.
Logical unit number. A LUN results from mapping a 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.
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.
Main volume.
Main control unit.
A general term describing any 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, and OPEN-E), and OPEN-V, which has a variable size and is a CVS-based
volume.
Primary volume.
A set of hard disk drives that have the same capacity and that are treated as one group. A parity
group contains both user data and parity information, which enables user data to be accessed
if one or more drives in the group is not available.
A path is created by associating a port, a target, and a LUN ID with one or more LDEVs. Also
known as a LUN.
Parallel access volume.
Printed circuit board.
Physical device.
Power Distribution Panels.
Power distribution unit. The rack device that distributes conditioned AC or DC power within a
rack.
A physical connection that allows data to pass between a host and the disk array. The number
of ports on a disk array depends on the number of supported I/O slots and the number of ports
available per I/O adapter. The P9000 and XP family of disk arrays supports Fibre Channel (FC)
ports and other port types. Ports are named by port group and port letter, such as CL1-A. CL1 is
the group; A is the port letter.
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101