Glossary – HP StoreEver ESL G3 Tape Libraries User Manual

Page 261

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Glossary

This glossary consists of terms unique to the library along with some storage industry
terminology.

Access door

Refers to the doors on either the control module, or standard or high density expansion module
from which you can access the magazines and accessor assembly.

Automated Media
Pool (AMP)

A virtual partition that can be dynamically allocated to other, previously-created standard partitions,
all without disrupting host or application operation. AMP magazines are presented to host
applications as part of a standard partition, but AMP magazines appear as "inaccessible" until
they are assigned to a normal partition. AMP may be thought of as -thin provisioning- for a tape
library. Both the Partition license and the AMP license are required to enable AMP. Both licenses
are sold on a per-library basis.

Capacity On
Demand (COD)

A library feature that enables users to have a large physical library, but users pay only for what
capacity they are currently using. License upgrades enable more capacity to be added without
a system interruption.

Control
Management
Blade (CMB)

A version of the MCB that has no I/O ports for Ethernet, SCSI, serial, or Fibre Channel. It is the
controller board for the I/O management unit in expansion modules.

Control module

The first component of the library. It consists of an library management module, cartridges, drives,
power, and an I/E station.

Data path

One of the many possible paths that data can move over in the storage area network environment,
potentially involving many components or connections between initiators and targets that have
been set since the initial configuration occurred.

Drive pooling

Drives to be held in a pool (or pools) of drives. You can specify policy settings for the drive pools
to configure how each pool will react to a drive failure and load balancing.

Drive sled position

A slot where a Fibre Channel or SCSI drives reside in the control module or expansion module
in one of the two drive clusters. There are six drive sled positions in each of the two drive clusters.

Ethernet Expansion
Blade (EEB)

Provides Ethernet connectivity to 6 Ethernet drives. This connectivity is to the library internal
Ethernet and should not be connected to an external Ethernet source.

Expansion Module
(EM)

Expansion modules enlarge the library configuration by adding modules for additional media
storage. You can add up 16 expansion modules to a library configuration.

High Density
Expansion Module
(HDEM)

High density expansion modules enlarge the library's storage capacity by offering nearly 700
slots of storage per module. You can add multiple HDEMs to a single library, each adding far
greater storage capacity than an EM. However, an HDEM is unable to contain drives, meaning
that you will only be adding storage capacity with each additional HDEM. HDEMs are capable
of having any type of I/E station to also allow for media import/export. In a dual robot library,
the right parking module must always be an EM and cannot be an HDEM.

HP Enterprise
Secure Key
Manager (ESKM)

The HP encryption key management solutions that supports HP LTO-4 and later FC tape drives.

I/E station

A door on the access door of the control module (or standard or high density expansion modules)
that contains magazines into which cartridges can be imported into or exported out of the library.

All single door I/E stations are numbered starting with 1 at the control module. All double door
I/E stations are numbered with a number and a letter-for example 2A and 2B-the module number
(1-8), with A as the left I/E station and B the right.

I/O management
unit

A management and connectivity interface for the library. The control module and standard
expansion module containing drives can have I/O management units installed. The I/O
management unit may contain a Control Management Blade (CMB) and Ethernet Expansion
Blades (EEB).

Key Management
Interoperability
Protocol (KMIP)

An industry standard protocol for communications between a key management server and an
encryption system. The KMIP specification is developed by the KMIP technical committee of the
OASIS standards body (Organization for the Advancement of Structured Information Standards).

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