HPE XP7 User Manual page 246

system as 3390-x devices. For controller emulation the mainframe host "sees" the control units
(CUs) on the XP7 Storage system as 2105 or 2107 controllers.
XP7 Storage system operates the same as the storage system being emulated.
ESW PCI Express Switch adapter.
Export Tool Software used to export monitoring data (statistics) shown in the Performance Monitor Monitor
Performance window to text files.
external port A Fibre Channel port that is configured to be connected to an external storage system for
External Storage operations.
external volume A logical volume whose data resides on drives that are physically located outside the XP7
Storage system.
FD Dump Tool Downloads Remote Web Console configuration information onto disk for backup and
troubleshooting purposes.
GB gigabyte
GUI graphical user interface
HBA host bus adapter
host group A group of hosts of the same operating system platform. Also known as a host storage domain.
host mode Operational modes that provide enhanced compatibility with supported host platforms. Used
with Fibre Channel ports on XP7 Storage systems.
host mode Additional options for Fibre Channel ports on XP7 Storage systems. Provide enhanced
option functionality for host software and middleware.
HP Hewlett-Packard Company
I/O input/output
IBM International Business Machines Corporation
initial copy An initial copy operation is performed when a copy pair is created. Data on the primary volume
is copied to the secondary volume.
internal volume A logical volume whose data resides on drives that are physically located within the storage
system. See also external volume.
IOPS I/Os per second
IP internet protocol
iSNS internet storage name service
JRE Java Runtime Environment
KB kilobyte
LAN local-area network
LBA logical block address
LCP local control port; link control processor
LDEV logical device
LDKC See logical disk controller (LDKC).
license key A specific set of characters that unlocks an application and allows it to be used.
local copy See in-system replication.
logical device An individual logical data volume (on multiple drives in a RAID configuration) in the storage
(LDEV) system. An LDEV may or may not contain any data and may or may not be defined to any hosts.
Each LDEV has a unique identifier or "address" within the storage system composed of the
logical disk controller (LDKC) number, control unit (CU) number, and LDEV number. The LDEV
IDs within a storage system do not change.An LDEV formatted for use by mainframe hosts is
called a logical volume image (LVI). An LDEV formatted for use by open-system hosts is called
a logical unit (LU).
logical disk A group of 255 control unit (CU) images in the XP7 Storage system that is controlled by a virtual
controller (LDKC) (logical) storage system within the single physical storage system. For example, the XP24000
Disk Array storage system supports two LDKCs, LDKC 00 and LDKC 01.
246 Glossary