IBM Elastic Storage System 5000 Series User Manual

FEK
See le encryption key (FEK).
le encryption key (FEK)
A key used to encrypt sectors of an individual le. See also encryption key.
le system
The methods and data structures used to control how data is stored and retrieved.
le system descriptor
A data structure containing key information about a le system. This information includes the disks
assigned to the le system (stripe group), the current state of the le system, and pointers to key les
such as quota les and log les.
le system descriptor quorum
The number of disks needed in order to write the le system descriptor correctly.
le system manager
The provider of services for all the nodes using a single le system. A le system manager processes
changes to the state or description of the le system, controls the regions of disks that are allocated
to each node, and controls token management and quota management.
leset
A hierarchical grouping of les managed as a unit for balancing workload across a cluster. See also
dependent leset, independent leset.
leset snapshot
A snapshot of an independent leset plus all dependent lesets.
flexible service processor (FSP)
Firmware that provides diagnosis, initialization, conguration, runtime error detection, and correction.
Connects to the HMC.
FQDN
See fully-qualied domain name (FQDN).
FSP
See flexible service processor (FSP).
fully-qualied domain name (FQDN)
The complete domain name for a specic computer, or host, on the Internet. The FQDN consists of
two parts: the hostname and the domain name.
G
GPFS cluster
A cluster of nodes dened as being available for use by GPFS le systems.
GPFS portability layer
The interface module that each installation must build for its specic hardware platform and Linux
distribution.
GPFS Storage Server (GSS)
A high-performance, GPFS NSD solution made up of one or more building blocks that runs on System
x servers.
GSS
See GPFS Storage Server (GSS).
H
Hardware Management Console (HMC)
Standard interface for conguring and operating partitioned (LPAR) and SMP systems.
HMC
See Hardware Management Console (HMC).
Glossary
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IBM Elastic Storage System 5000 Series Specifications

General

Brand	IBM
Model	Elastic Storage System 5000 Series
Category	Enclosure
Language	English