Dell PowerEdge R320 User Manual [en, de, es, fr]
Dell Glossary – Version 2
Glossary
Glossar
Glosario
Glossaire
用語集
용어집
Sözlük
词汇表
Dell Glossary – Version 2
Glossary
Glossary
ACPI See advanced configuration and power interface.
active control module For Dell EqualLogic PS Series arrays in a dual-control module array, the control module that
is actively servicing I/O on a network. If it ceases to function, it fails over to the secondary
control module. See secondary control module.
active Controller The Dell AIM Controller that is actively managing the Dell AIM environment.
active space In Dell Compellent Storage Center, the amount of space that is used by a volume, excluding
replays. This amount does not include RAID overhead. See Replay.
actual space In Dell Compellent Storage Center, the amount of active space plus replay space for a
volume. See active space, Replay space.
advanced configuration
and power interface
(ACPI)
agent In the Dell AIM environment (VMRacks based on Red Hat Xen and Microsoft Hyper-V, plus
agentless persona A Dell AIM persona that does not have the Dell AIM agent installed.
ambient temperature The temperature of the area or room where the system is located.
array member A Dell EqualLogic PS Series array configured into a PS Series group. Groups can have
array serial number In the Dell EqualLogic PS Series array environment, a unique Dell EqualLogic PS Series array
ASM/ME See Auto-Snapshot Manager/Microsoft Edition.
ASM/VE See Auto-Snapshot Manager/VMware Edition.
Asset Management
Appliance
asset tag An individual code assigned to a system, usually by an administrator, for security or tracking
Assigned Disks In Dell Compellent Storage Center, physical storage media assigned to a disk folder in order
A standard interface for enabling the operating system to direct configuration and power
management.
personas), the optional software installed on elements that the Controller uses to manage
the elements and configure their networking properties.
several members.
identification string that is encoded in the array's hardware. See service tag.
A Dell KACE appliance-based asset management solution for IT professionals that tracks
software and license compliance. It automates the management of inventory, software
assets, versions, upgrades, and computers through a web-based dashboard.
purposes.
to become managed and used for storing volumes and replays. See disk folder, Storage
Pool.
assignment mode A mechanism to control how personas and VMRacks are assigned to hosts based on the
availability of HBAs in the host. See HBA.
async/asynchronous
replication
The process of writing data to local storage then queuing that data for storage on a remote
SAN. If the local SAN fails before a write is delivered, it is possible that the replication will
fail. See replication, synchronous replication, remote instant replay.
3
automatic RAID
configuration
In the context of Dell EqualLogic PS Series groups, an internal process that configures the
user-selected RAID policy on the array.
Auto-Snapshot
Manager/Microsoft
Edition (ASM/ME)
Auto-Snapshot
Manager/VMware
Edition (ASM/VE)
available space Amount of total storage available on all drives.
back end In Dell Compellent Storage Center, an isolated and dedicated network that connects the
back end network Connection between controller and disks in the Dell Compellent Storage Center Controller.
base volume (Dell
EqualLogic PS Series)
base volume (Dell
EqualLogic Group
Manager)
Baseboard
Management Controller
(BMC)
blade For the Dell AIM SDK, blade is an element of the host superclass. For Dell modular systems,
A snap-in console application for the Microsoft Management Console that enables you to
administer Smart Copies.
A web-based application that works with VMware virtual environments to enable you to
administer Smart Copies.
controller or storage cluster (e.g., redundant pair of controllers) to local disk enclosures.
A volume mounted on the computer and reachable through its Windows-assigned drive
letter (such as G:) or mount point.
A volume that has snapshots. Snapshots depend on the base volume. If the base volume is
destroyed, the snapshots have been removed.
A server management module that implements the IPMI (Intelligent Platform Management
Interface) protocol. In the context of Dell AIM, the Controller uses the BMC to control some
models of servers remotely.
a blade refers to a modular server which is mounted into an enclosure.
BMC See Baseboard Management Controller.
Bootable media A CD, SD card, or USB memory key that is used to start your system if the system will not
boot from the hard drive.
cache A fast storage area that keeps a copy of data or instructions for quick data retrieval.
CHA See Compellent Host Adapter.
Challenge Handshake
Authentication Protocol
(CHAP)
channel In the Dell/AIM environment, one of up to eight physical connections you can assign to
CHAP See Challenge Handshake Authentication Protocol.
chassis switch In the context of Dell AIM, an Ethernet switch in a bay in a chassis. Chassis switches are
client device
communication
certificate
Challenge Handshake Authentication Protocol, a network login protocol that uses an
encrypted challenge-response mechanism. Used to limit access to volumes and snapshots
to hosts that supply the correct account name and password. CHAP is also used for login/
administrator accounts.
switch ports and that you can connect to a persona using up to eight physical NICs. You can
configure a network to prefer one or two channels for its traffic, so if the preferred channel
fails traffic is transparently rerouted to the other channel.
managed by the Controller.
In the context of EKM, a specialized encrypted key that allows a client to communicate with
the server.
4
Cluster Node A physical member of a resource cluster, such as a host in a server cluster or a SAN in a
storage cluster.
collection In ASM/ME, a collection is related groups of storage objects such as volumes, snapshots, or
application components, and are represented by nodes in the ASM Console Tree under the
Collections master node. In Dell EqualLogic Group Manager, volume and replica collections
and custom snapshot collections appear in the hierarchy under the Volumes view.
Compellent Host
Adapter (CHA)
configuration The database that describes the entire contents and configuration of the Dell AIM
Conservation Mode In Dell Compellent Storage Center, a data preservation mode that is reached when remaining
Console The web-based user interface that you use to monitor and work with the elements in the Dell
control module In Dell EqualLogic PS Series arrays, the physical processor and interface component. A
control panel The part of the system that contains indicators and controls, such as the power button and
Control Port The destination iSCSI port to which iSCSI initiators (servers) connect in order to make
Internal cache card/battery seated in each Dell Compellent Storage Center controller. Write
cache memory is mirrored to the cache card. On a dual-controller Dell Compellent Storage
Center, the controller 1 cache card holds the mirror for controller 2, and the controller 2
cache card holds the mirror for controller 1. On a single-controller Dell Compellent Storage
Center, the cache card holds the mirror for the single controller.
environment.
free space drops to a critical threshold (typically 10%, up to 32 GB). In conservation mode,
the Dell Compellent Storage Center generates an alert, prevents new volumes from being
created, and starts expiring replays at a faster rate to free up space. See Emergency Mode.
AIM environment. The Dell AIM Console is hosted by the Dell AIM Controller.
control module contains the Dell EqualLogic PS Series firmware in flash memory and
provides temporary power continuity for data sorted in cache memory. It has multiple
network interfaces and an optional serial port. An array can contain two hot-swappable,
dual redundant controllers. The active control module serves I/O, while the secondary
control module mirrors data in its cache.
power indicator.
storage requests. In a Dell Compellent Storage Center configured for virtual port mode, a
control port is created for each iSCSI fault domain, to redirect iSCSI traffic to the appropriate
virtual port.
Controller (Dell AIM) Software that manages the physical and virtual hardware, software, and network
configurations and hosts the Dell AIM Console. In the context of a pair of resilient
Controllers, each Controller runs on a dedicated server but shares a configuration database
and other key files on a shared file system.
Controller (Dell
Compellent)
Controller Services In the context of Dell AIM, the virtual IP address or addresses the Controller users for
Provides disk aggregation (RAID), I/O routing, error detection, and data recovery. Provides
the intelligence for the entire Dell Compellent Storage Center subsystem. Every Storage
Center system contains at least one. Storage Center and recommend corrective actions to
improve performance and availability of the system.
communications with the System Control Network (SCN), managed switches, the Console
and CLI, and so on. By default, this is a single virtual IP address on the active Controller, but
you can specify unique addresses for the services SCN Services and SNMP Trap Collector.
5
Copilot Services Within Dell Compellent Storage Center, the combination of centralized support, product
education and sales resources that proactively monitor the system and recommend
corrective actions to improve performance and availability of the system.
Copy-Mirror-Migrate A Dell Compellent Storage Center feature allowing volumes to be migrated between different
disk types and RAID levels.
credential store In the context of EKM, a repository that holds credential information across sessions.
Credential information is security data such as user names, passwords, and certificates.
Cryptographic Object A method of securing data.
Data Collector A Dell Compellent Enterprise Manager component that runs in the background on a server,
collecting information on all Dell Compellent Storage Center systems connected to the
server.
Data Instant Replay A Dell Compellent Storage Center feature that captures space-efficient point-in-time copies
(PITC) of a volume on the local SAN at defined intervals, providing the ability to roll back a
volume to a previous point in time. See Replay, snapshot.
Data Progression A Dell Compellent Storage Center feature that automatically migrates data pages to higher or
lower performance devices, based on the level of I/O activity (demand). See tiered storage.
DDR See Double-data Rate.
delegated space In the context of the Dell EqualLogic Group Manager, a space on a group set aside to store
received replicas for a partner.
Dell Encryption Key
Manager (EKM)
Dell Remote Access
Controller (DRAC)
device driver A program that allows the operating system or some other program to interface correctly
DHCP See Dynamic Host Configuration Protocol.
Digital Versatile Disk Digital versatile disc or digital video disc (DVD).
disk folder In Dell Compellent Storage Center, a collection of physical storage media devices (disks,
Disk Position In Dell Compellent Storage Center, the slot position of a disk drive within its enclosure, in
DNS See Domain Name System.
Domain Name System
(DNS)
Dell Encryption Key Manager (EKM) secures the data stored on LTO tape cartridges by
managing encryption keys for Dell tape automation solutions.
An interface card that provides out-of-band management facilities. The controller has its
own processor, memory, network connection, and access to the system bus, and allows
system administrators to control systems remotely across a network.
with a peripheral.
SSDs) that can be viewed and managed by a user. Disk folders determine the storage
pool(s) from which volume storage space is allocated. Although disk folders can be
associated with multiple storage pools, Dell Compellent Storage Center performance is
maximized by assigning all disks to the same folder and storage pool.
row-column notation. For example, disk position 01-02 refers to the slot in the first row from
the top and second column from the left.
A method of translating Internet domain names, such as www.example.com, into IP
addresses, such as 208.77.188.166.
dormant Persona In the AIM environment, a persona that is not currently running (or waiting to run) on a host.
6
Double-data Rate (DDR) Double-data rate. A technology in memory modules that potentially doubles the data rate by
transferring data on both the rising and falling pulses of a clock cycle.
DRAC See Dell Remote Access Controller.
DRAM See Dynamic random-access memory.
Dual Redundant In Dell Compellent Storage Center, a storage profile option for protecting against the loss of
any two drives, typically by using RAID 10 and/or RAID 6.
DVD See Digital Versatile Disc.
Dynamic Host
Configuration Protocol
(DHCP)
Dynamic randomaccess memory
(DRAM)
EKM See Dell Encryption Key Manager.
EKM Administrator In the context of EKM, the super user who can create or delete users and groups.
EKM Encryption
Manager (tklmadmin)
Emergency Mode In Dell Compellent Storage Center, a mode that is reached when the system can no longer
enclosure A physical enclosure that provides a single interface, power, and cooling to multiple disks or
environment In the context of Dell AIM, the collection of hardware, software, and network configurations
Eth0 See Ethernet port 0.
Eth1 See Ethernet port 1.
A method of automatically assigning an IP address to a client system.
A system's RAM is usually made up entirely of DRAM chips.
In the context of EKM, the daily user who creates or deletes keys and devices.
operate because there is no more free space. In emergency mode, all server I/O is rejected
and all volumes are taken offline and cannot be brought back online until enough space is
freed to exit emergency mode. See Conservation Mode .
blades.
managed by a Dell AIM Controller.
Ethernet port 0 (Eth0) In Dell Compellent Storage Center, Eth0 is an Ethernet interface dedicated to management.
Ethernet port 1 (Eth1) In Dell Compellent Storage Center, Eth1 is an Ethernet interface dedicated to inter-process
communication between controllers, for clustering or remote replication.
external network In the context of the Dell AIM environment, a network that is not part of the Dell AIM
environment but is physically and logically connected to it.
external switch In the context of the Dell Aim environment, a switch that is not part of the Dell AIM
environment, but is physically and logically connected to it.
Fabric A combination of interconnected switches that act as a unified routing infrastructure. It
allows multiple connections among devices on a SAN and lets new devices enter
unobtrusively. A FC (or iSCSI) topology with at least one switch present on the network.
FastTrack An optional Dell Compellent Storage Center utility that dynamically places the most active
data on the outer (faster) disk tracks.
7
FAT See File Allocation Table.
Fault Domain Within the Dell Compellent Storage Center environment, a Fault Domain identifies a failover
set. In Virtual Port mode, all front-end ports can be part of the one fault domain. In Legacy
Mode, each primary and reserved port creates one fault domain.
FC See Fibre Channel.
FE See Front End Network.
Fibre Channel (FC) A high-speed interconnect used to connect servers to controllers and back-end disk
enclosures. FC components include HBAs, hubs, switches, and cabling. The term FC also
refers to a high-speed, fully duplexed serial communication protocol permitting data transfer
rates of up to 10 Gigabit per second.
File Allocation Table
(FAT)
File Transfer Protocol
(FTP)
Front End Network (FE) The component in the Dell Compellent Storage Center SAN flow of data writes (server to
FTP See File Transfer Protocol.
GB See Gigabyte(s).
Gigabyte(s) (GB) 1024 megabytes or 1,073,741,824 bytes. However, when referring to hard-drive capacity; the
group See PS Series group.
HBA See Host Bus Adapter.
HIT/LE See Host Integration Tools for Linux.
HIT/ME See Host Integration Tools for Windows.
HIT/VM See Host Integration Tools for VMware.
host In the Dell AIM environment, a host may be a physical server (rack-mounted or blade) or
The file system structure used by MS-DOS to organize and keep track of file storage. The
Microsoft Windows operating systems can optionally use a FAT file system structure.
An application layer protocol used to transfer bulk-data files between machines or hosts.
switch to controller to disks) that initiates data writes. In general, servers (or switches) are
the front end of the controller. However, a Storage Center system that is replicating data to a
remote system is the front end of the remote system. See back end.
term is usually rounded to 1,000,000,000 bytes.
virtual machine. In the Dell AIM SDK, a superclass that includes blade servers, rackmounted servers, and virtual machines (VMs).
host adapter A controller that implements communication between the system's bus and the peripheral
device, typically a storage device.
Host Bus Adapter (HBA) A device, typically an add-on card, that connects a server to a SAN (Storage Area Network).
Each HBA is uniquely identified on the SAN by its WWPN (World Wide Port Number).
Common HBA types include Fiber Channel and iSCSI.
Host Integration Tools
for Linux (HIT/LE)
Host Integration Tools
for Windows (HIT/ME)
8
A suite of tools that integrate ESX systems with Dell EqualLogic PS Series storage arrays. It
includes the Auto Snapshot Manager/VMware Edition (ASM/VE), EqualLogic Datastore
Manager, and EqualLogic Virtual Desktop Deployment Utility.
A suite of applications that enable you to configure and manage an array. It includes ASM/
ME, DSM (Multipath I/O Device Specific Module), and RSW (Remote Setup Wizard).
Host Integration Tools
for VMware (HIT/VM)
Hot Spare Disk In the Dell Compellent Storage Center environment, a Hot Spare disk is a backup disk. In the
hot-plug The ability to insert or install a device, typically a hard drive or an internal cooling fan, into
hot-swap See hot-plug.
I/O Input/Output. A keyboard is an input device, and a monitor is an output device. In general, I/
ID In the Dell AIM environment, a unique identifier for an element in the , assigned when it is
iDRAC See integration Dell Remote Access Controller.
IKEv2-SCSI A protocol used for certificate creation.
image Specific to Dell AIM, the actual bits stored on a disk or storage array that a persona or
A suite of tools that integrate Linux systems with Dell EqualLogic PS Series storage arrays. It
includes the Remote Setup Wizard Command Line Interface (RSWCLI), the EqualLogic Host
Performance and Configuration Tuning Suite (eqltune), and EqualLogic Log Gathering Facility
(eqllog).
event that an active array fails, the controller makes the Hot Spare part of the active array
and rebuilds data on the fly. Although the Hot Spare becomes an active disk without human
intervention, remember to replace the failed drive as soon as possible, so that the array is
again protected with a new Hot Spare. Hot spares can span multiple disk enclosures.
Storage Center Hot Spares can have a different capacity than the data drive it replaces.
the host system while the system is powered on and running. Also referred to as hot-swap.
O activity can be differentiated from computational activity.
added to the environment.
VMRack boots, along with information the Controller uses to boot that image on a specific
type of host. You can configure a persona or VMRack with more than one image, for
example, so the same persona can boot on either a physical server or a virtual machine.
infiniBand infiniBand offers point-to-point bidirectional serial links intended for connection of
processors and high-speed peripherals.
Instant Replay See Data Instant Replay.
integration Dell Remote
Access Controller
(iDRAC)
Intelligent Platform
Management Interface
(IPMI)
interconnect switch A switch in the Dell AIM environment, managed by the Controller, that you use to
internet SCSI (iSCSI) Internet SCSI (see SCSI). A protocol that encapsulates standard SCSI commands for
IPMI See Intelligent Platform Management Interface.
iSCSI See Internet SCSI.
A remote access controller that uses the Internet SCSI protocol.
A protocol implemented by management modules in some servers, which is used to control
the servers remotely. The blade management modules in the Dell servers implement iPMI.
interconnect elements such as chassis, vRacks, other interconnect switches, and external
switches.
communication between client servers (iSCSI initiators) and network storage devices (iSCSI
targets) on IP networks.
9
Key Management
Interoperability
Protocol (KMIP)
Key Serving Ports Ports used by the operating system to communicate in EKM.
Keygroup In EKM, a set of keys assigned to a specific department, area, or hardware type.
Keys An encrypted certificate used to protect data in EKM.
Standards set up for the communication between enterprise key management systems and
encryption systems.
Keystore / Keygroup/
Master Keystore
KMIP See Key Management Interoperability Protocol.
Java Database
Connectivity (JDBC)
JDBC See Java Database Connectivity.
Leader Controller The primary controller in a dual controller Dell Compellent Storage Center. Normally, the
Legacy Mode In Dell Compellent Storage Center, fault domains are configured to dedicate pairs of primary
Linear Tape-Open (LTO) An open standards tape format.
logical unit number
(LUN)
LTO See Linear Tape-Open.
A group of encrypted keys in EKM.
An API for the Java programming language that defines how a client may access, query, and
update data in a database.
leader and peer controllers share the storage I/O load, essentially doubling throughput, but
only the leader controller performs external management functions. If one controller fails,
the remaining controller becomes or remains the leader and assumes the duties of both
controllers. See Peer Controller.
and reserved front end ports, connected through redundant equipment, as a mechanism to
protect storage traffic against a single point of failure. See Fault Domain, Virtual Port or
Virtual Port Mode.
A logical unit is a conceptual division (a subunit) of a storage disk or a set of disks. Each
logical unit has an address, known as the logical unit number (LUN), which allows it to be
uniquely identified.
LTO Key Group Rollover In EKM, a set of keys assigned to be used once the default keygroup is depleted.
LUN See logical unit number.
MAC address See Media Access Control address.
Managed Disks In Dell Compellent Storage Center, storage media devices (disks, SSDs) that are assigned to
a disk folder in order to associate those devices with a storage pool. See Storage Pool, disk
folder.
managed system A managed system is any system that is monitored and managed using Dell OpenManage
Server Administrator.
management IP
address
management network An optional management network separates iSCSI traffic (Volume I/O) from management
10
Address used to used to connect to an intelligent IP-enabled device in order to monitor or
manage that device. The address may be dedicated for exclusive use by management
applications or shared for use by management and service applications.
traffic (GUI and CLI sessions, and other group management communications and intergroup
operations).
management station A system used to remotely manage one or more managed systems from a central location.
Manual Replay A Dell Compellent Storage Center feature that allows the user to manually create point in
time copies of volumes.
manual transfer
replication
Manual Transfer Utility A stand-alone utility from Dell EqualLogic that performs volume replication using
Media Access Control
address (MAC address)
migrate volume A Dell Compellent Storage Center command to move data from one volume to another.
migration In the context of EKM, combining a keystore into an existing keystore during (not after) Dell
mirror volume A Dell Compellent Storage Center command to replicate a local volume onto a remote Dell
mirroring A type of data redundancy in which a set of physical drives stores data and one or more sets
NAS See Network-Attached Storage.
network connection An object that defines a persona's and VMRack's required network connectivity. A network
Replication done through transportable media instead of over a network. Used in cases
where the network link between replication partners is too slow or otherwise unsuitable for
transferring large amounts of data.
transportable media, instead of the network. The utility has both graphical and command line
user interfaces.
Your system's unique hardware number on a network.
Encryption Key Manager 3.0 installation.
Compellent Storage Center and maintain updates between the local and remote volumes
until the mirror is manually broken.
of additional drives stores duplicate copies of the data. Mirroring functionality is provided by
software. See striping, RAID.
connection is created as the result of adding elements to a network, for example when you
add a persona to a network.
Network-Attached
Storage (NAS)
NTP The Network Time Protocol (NTP) is a protocol for synchronizing the clocks of computer
Oversubscribed space In a SAN that supports thin provisioning, the amount of storage space that is configured as
parity stripe In RAID arrays, a striped hard drive containing parity data.
partition A physical section of a hard drive created using the fdisk command. Partitions can then be
passive Controller The Dell AIM Controller that acts as a hot standby, ready to take over managing the
Peer Controller In a dual-controller Dell Compellent Storage Center, the peer controller shares the I/O load
NAS is one of the concepts used for implementing shared storage on a network. NAS
systems have their own operating systems, integrated hardware, and software that are
optimized to serve specific storage needs.
systems over packet-switched, variable-latency data networks.
available but not physically present (i.e., configured space minus available space).
divided into multiple logical drives using the format command.
environment if the active Controller fails.
with the leader controller but does not perform external management functions. If the leader
controller fails, the peer controller assumes the I/O and management duties of both
controllers. See Leader Controller.
11
persona A server environment captured on disk: the operating system, optional Dell AIM agent
software, and the network and other settings required to run an application on a host in the
Dell AIM environment.
pool Storage space in a SAN available for use by volumes. In Dell Compellent Enterprise Storage
Manager and Dell Compellent Storage Center, this is equivalent to the total space in the
SAN. In Dell EqualLogic PS Series arrays, this is equivalent to the total space on the
members of the specific pool.
pool administrator An account on a Dell EqualLogic PS Series group that has permission to manage objects
only in a specific pool or set of pools for a group. Compare to group administrator.
primary group Within the Dell EqualLogic Group Manager environment, the group containing the original
volume in a replication partnership. See secondary group.
primary volume Within the Dell EqualLogic Group Manager environment, a volume configured for replication
to a replication partner.
PS Series array A single Dell EqualLogic iSCSI storage unit, usually configured as a Dell EqualLogic PS
Series group. You can join multiple PS Series arrays into a larger PS Series group and
manage them as a single iSCSI SAN.
PS Series group An iSCSI storage entity comprised of one or more Dell EqualLogic PS Series storage arrays
that you access through a single IP address and manage as a storage area network (SAN).
Public Services In the context of Dell AIM, the Controller Services virtual IP address that you use to connect
to the Console or CLI on the active Controller.
RAC Remote Access Controller.
RAID See Redundant Array of Independent Disks.
RAID 0 Data is striped across the available disks providing improved performance. RAID 0 does not
provide any data redundancy.
RAID 10 Data is striped across available disk drives and mirrored, providing data availability and
improved performance. Maintains a minimum of one full copy of all data on the volume. RAID
10 provides optimum Read / Write performance, increased probability of withstanding
multiple failures, and the quickest restoration of data.
RAID 5 Maintains a logical copy of the data using a mathematically derived rotating parity stripe.
The parity stripe is derived from the data stripes. This method has less overhead for the
redundant information than RAID 10 however write performance is slower than RAID 10 due
to the calculation of the parity stripe for every write. Read performance is similar to RAID 10.
RAID 50 RAID level 50 is a combination of RAID level 5 and RAID level 0. RAID 50 includes both parity
and disk striping across multiple drives.
recovery volume A volume created for the purpose of recovering data. In Dell EqualLogic PS Series arrays, a
recovery volume is created by promoting an inbound replica set as part of a failover
operation. You can also create recovery template volumes and recovery thin clones. In Dell
Compellent Storage Center, a view volume is created from a replay. See replica, View
Volume, Replay.
Redundancy The duplication of information or hardware equipment components to ensure that if a
primary resource fails, a secondary resource can take over its function. Dell Compellent
Storage Center provides redundancy for each component so that there is no single point of
12
failure. Single Redundancy protects against loss of data if any one resource fails. Dual
Redundancy protects against data lost if any two resources fail.
Redundant Array of
Independent Disks
(RAID)
Remote Instant Replay A Dell Compellent Storage Center solution feature in which a replay is replicated to a remote
Remote Setup Wizard
(RSW)
Remote System In Dell Compellent Storage Center, a separate SAN configured to receive replication data
Replay In Dell Compellent Storage Center, a fully usable, point-in-time copy (PITC) of data that
Replay Profile In Dell Compellent Storage Center, a set of rules that determine when and how replays point-
Replay space In Dell Compellent Storage Center, the amount of space that is automatically reserved and
Redundant array of independent disks. A method of providing data redundancy. Some
common implementations of RAID including RAID 0, RAID 1, RAID 5, RAID 10, and RAID 50.
See mirroring, striping.
Dell Compellent Storage Center. The local and remote Dell Compellent Storage Centers are
active-active, and bidirectional replication can occur, synchronously or asynchronously, on
independent intervals. Dell Compellent Storage Center replication requires the Enterprise
Manager software application with a Replication license. See Replay, Remote System,
replication.
A graphical user interface (GUI) that enables you to configure a Dell EqualLogic PS Series
array after you install the Host Integration Tools/Microsoft Edition.
from an original volume on the local Dell Compellent Storage Center. Dell Compellent
Storage Center replication requires the Enterprise Manager software application with a
Replication license. See replication.
contains an image of the data as it appeared at the point in time at which the copy was
initiated. The copy may be stored locally or on a remote Dell Compellent Storage Center.
See snapshot, Data Instant Replay, Remote Instant Replay.
in-time copies will be taken and how long they will be saved. See Replay.
used for replays. See active space, actual space.
replica A point-in-time representation of a Dell EqualLogic PS Series volume. The original volume
and its replica are located on different Dell EqualLogic PS Series groups (replication
partners) potentially separated at some geographical distance to facilitate disaster
tolerance.
replica collection In Dell EqualLogic Group Manager, the set of replicas resulting from each replication of a
volume collection.
replica collection set In Dell EqualLogic Group Manager, the set of replica collections for a volume collection.
replica reserve In Dell EqualLogic Group Manager, the portion of the delegated space on a replication
partner that is set aside for the replica sets for a specific volume. You configure the replica
reserve for the volume on the primary group, but the actual replica reserve is on the
secondary group.
replica set In Dell EqualLogic Group Manager, the set of complete replicas for a volume, template
volume, or thin clone volume.
replicating system A Dell Compellent Storage Center configured to send replication data from one or more local
volumes to a remote Storage Center. See replication, Remote System, Remote Instant
Replay.
13
replication The process of copying volume data (only deltas) from the primary (local) SAN to a
secondary (remote) SAN, so that data can be recovered from either SAN if necessary. The
SANs can be an unlimited distance apart.
replication partner In Dell EqualLogic Group Manager, a group that is configured to send or receive replicas
from another partner.
RSW See Remote Setup Wizard.
runnable persona In the context of Dell AIM, a network-booted persona that is started and is waiting to be
assigned to a host.
SAN See Storage Area Network.
SAN HeadQuarters Enables you to monitor multiple Dell EqualLogic PS Series groups from a single graphical
interface. It gathers and formats performance data and other important group information.
SCN See System Control Network.
SCN Services The Controller Services virtual IP address that personas and VMRacks in the Dell AIM
environment use to communicate with the active Controller.
SCSI See Small Computer System Interface.
SDK See Software Development Kit.
secondary control
module
secondary group In a Dell EqualLogic Group Manager replication configuration, the group that receives
Server Cluster A group of independent servers working together as a single system to provide uninterrupted
service tag A label on the system used to identify it when you call Dell for technical support.
Simple Mail Transfer
Protocol (SMTP)
Simple Network
Management Protocol
(SNMP)
Simulator A component of the Dell AIM SDK that emulates a running Dell AIM environment, including
Small Computer System
Interface (SCSI)
SMART Self-Monitoring Analysis and Reporting Technology. Allows hard drives to report errors and
Smart Copy An ASM/ME point-in-time, application-consistent copy of objects in a Dell EqualLogic PS
Within the Dell EqualLogic Group Manager environment, the secondary control module
mirrors cache data from the active control module. If the active control module ceases to
function, the secondary takes over network operations. See active control module.
replicas of a source volume. See primary group.
service in the event of individual computer failures.
Defines a message format and forwarding procedure to enable messages to be sent
between hosts on the Internet.
A standard interface that allows a network manager to remotely monitor and manage
workstations.
the Controller, the Console, and physical and virtual networks. See SDK.
Small computer system interface. An I/O bus interface with faster data transmission rates
that standard ports.
failures to the system BIOS and then display an error message on the screen.
Series group. Smart Copies can be of type snapshot, clone, or replica depending on the
edition of Auto-Snapshot Manager that you are using.
SMP See symmetric multiprocessing.
14
SMTP See Simple Mail Transfer Protocol.
snapshot A point-in-time copy (PITC) of a volume. See Replay.
snapshot collection A set of snapshots resulting from a snapshot operation on a volume collection. See volume
collection.
SNMP See Simple Network Management Protocol.
SNMP Trap Collector In the context of Dell AIM, the Controller Services virtual IP address that managed switches
and other devices use to send SNMP traps to the active Controller.
Software Development
Kit (SDK)
Space Recovery A utility that recovers space that Windows reports as being used but is actually empty,
spare disk A designated or unused drive in a SAN that is used automatically to replace a failed drive.
Storage Area Network
(SAN)
Storage Cluster In Dell Compellent Storage Center, multiple SAN controllers that are interconnected for the
Storage Clustering A Dell Compellent Storage Center feature that provides automatic controller failover through
Storage Pool See pool.
A set of development tools used to create applications for a specific software package,
software framework, hardware platform, computer system, video game console, operating
system, or similar platform.
available space that can be used by Dell Compellent Storage Center.
A storage area network (SAN) is a specialized network that provides access to high
performance and highly available storage subsystems using block storage protocols. The
SAN is made up of specific devices, such as host bus adapters (HBAs) in the host servers,
switches that help route storage traffic, and disk storage subsystems. The main
characteristic of a SAN is that the storage subsystems are generally available to multiple
hosts at the same time, which makes them scalable and flexible. Compare with NAS.
purpose of improving reliability, availability, serviceability and performance (via load
balancing). Storage Center uses an active-active configuration to provide automatic
controller failover. A fully mirrored, battery-backed cache in each controller ensures data
reliability over a restart and allows volumes to migrate between controllers in the event of a
single controller failure.
multiple controllers in an active-active configuration. Fully mirrored, battery backup cache
provides fault tolerance and automatic restart/recovery in the event of a controller failure.
Storage Profile In Dell Compellent Storage Center, a set of rules that define the drive types (tiers) on which
to store data and the RAID level to use for each tier.
Storage Type In Dell Compellent Storage Center, a set of attributes, including redundancy options and
block size, that control how space from a storage pool is allocated and protected.
striping Disk striping writes data across three or more disks in an array, but only uses a portion of the
space on each disk. The amount of space used by the "stripe" is the same on each disk
used. A virtual disk may use several stripes on the same set of disks in an array. See also
mirroring, and RAID.
symmetric
multiprocessing (SMP)
synch See Synchronous Replication.
Used to describe a system that has two or more processors connected via a high-bandwidth
link and managed by an operating system, where each processor has equal access to I/O
devices.
15
Synchronous
Replication
Feature that atomically writes the same data to two separate volumes, stored on different
physical hardware, before the application receives an I/O complete message. Both writes
either complete or fail, so both volumes are fully synchronized at all times. However, the
feature can increase write latency for the application. See synch.
System Control
Network (SCN)
System Setup program A BIOS-based program that allows configuration of a system's hardware and customization
Systems Deployment
Appliance
Systems Management
Appliance
template In the context of Dell AIM, a dormant persona that you can clone to create other personas,
template volume Read-only volume from which you create thin clones.
thin clone Volume that shares space with a template volume. Thin clones provide an efficient use of
A private network that Dell AIM uses for communication between the Controller, personas,
and VMRacks. The Controller also uses this network to discover servers and to boot
personas and VMRacks on them.
of the system's operation by setting features such as password protection. Because the
System Setup program is stored in NVRAM, any settings remain in effect until changed.
A Dell KACE appliance-based deployment management solution for IT professionals that
provides tools for disk imaging, user state migration, remote site management, system repair
and recovery, as well as computer inventory scanning and assessment. Additionally, it
automates pre-and post-deployment configuration tasks such as computer inventory
scanning and assessment; it also automates disk, BIOS, and RAID configuration, software
distribution, and configuration management.
A Dell KACE appliance-based systems management solution for IT professionals that
streamlines tasks such as inventory management, software distribution, reporting, patch
management, asset management, scripting, and service desk support through a web-based
interface.
but which you can't run (to prevent changes to the template).
storage space for configurations with multiple volumes that have a large amount of common
data.
Thin Provisioning Feature that lets you over-provision (or over-subscribe) the space available in the SAN.
Storage objects (such as volumes) that use thin provisioning report their potential maximum
size to applications, but may actually use much less space. Thin provisioning allows
organizations to reduce their overall storage expenditures, increase availability and achieve
greater performance.
tiered storage Storage optimization strategy in which data required quickly and often is stored on
expensive, fast media types, and data required rarely is stored on less expensive, slower
media types.
unmanaged space In Dell EqualLogic PS Series arrays, delegated space capacity on the secondary group that
is no longer accessible from the primary group.
uplink port A port on a network hub or switch used to connect to other hubs or switches without
requiring a crossover cable.
vacate In Dell EqualLogic Group Manager, to remove a member from a group while the member
remains online.
View Volume In Dell Compellent Storage Center, a read-only volume that has been created from a previous
replay, for the primary purpose of recovering data. See Replay.
16
Virtual Port or Virtual
Port Mode
In the context of Dell Compellent Storage Center, Virtual Ports eliminate the need for reserve
ports. When operating in Virtual Port mode, all front-end ports accept I/O and can be part of
one Fault Domain. For information on enabling Virtual Ports, refer to the Dell Compellent
Storage Center System Setup Guide.
virtual World Wide Port
Name (vWWPM)
Virtualization The ability to use software to share the resources of a single computer or storage device
VMRack A rack of virtual machines (VMs) on a server that is running a combination of agent software
volume A discrete unit of storage striped to a storage device or devices.
volume collection A number of volumes grouped together for purposes of performing operations on the
volume reserve Amount of space allocated to a volume from free pool space. Without thin provisioning,
Volume Type In the context of Dell Compellent Storage Center, Volume Type: can be dynamic, Replay
vRack In the context of Dell AIM, a logical group of hosts connected to a virtual switch (vRack
vRack switch In the context of Dell AIM, a virtual switch that connects hosts in a vRack.
A virtual World Wide Port Name used in Dell AIM for creating SAN-booted personas.
across multiple environments. A single physical system or device may appear to the user as
multiple virtual systems able to host multiple operating systems.
and Red Hat Xen, VMware ESX, or Microsoft Hyper-V.
volumes simultaneously. See snapshot collection, replica collection.
volume reserve is the same as reported size.
enabled, or Replication. A volume is dynamic until at least one Replay has been taken of that
volume. Once a Replay has been taken of a volume, it becomes Replay Enabled. A
Replication volume is one that is being Replicated to another Dell Compellent Storage Center
system.
switch).
vWWPN See virtual World Wide Port Name.
17
18
Dell Glossar – Version 2
Glossar
Glossar
ACPI Siehe Advanced Configuration and Power Interface (Erweiterte Konfigurations-
und Stromverwaltungsschnittstelle).
Aktives Kontrollmodul Bei Dell EqualLogic PS-Series Arrays mit zwei Kontrollmodulen dasjenige
Kontrollmodul, das aktiv die E/A auf einem Netzwerk betreibt. Fällt es aus, wird
an das Sekundärkontrollmodul übergeben. Siehe Sekundärkontrollmodul.
Aktiver Controller Der Dell AIM Controller, der aktiv die Dell AIM Umgebung verwaltet.
Aktiver Speicherplatz Im Dell Compellent Storage Center die von einem Volume verwendete Menge
an Speicherplatz, ausgenommen Replays. Der RAID-Overhead ist nicht
enthalten. Siehe Replay.
Tatsächlicher Speicherplatz Im Dell Compellent Storage Center die Menge an aktivem Speicherplatz plus
dem Replay-Speicherplatz für ein Volume. Siehe aktiver Speicherplatz, ReplaySpeicherplatz.
Advanced Configuration and Power
Interface ACPI (Erweiterte
Konfigurations- und
Stromverwaltungsschnittstelle).
Agent In der Dell AIM Umgebung (VMRacks auf Basis von Red Hat Xen und Microsoft
Agentenlose Persona Eine Dell AIM Persona ohne installierten Dell AIM Agent.
Umgebungstemperatur Die Temperatur in dem Bereich oder Raum, in dem sich das System befindet.
Array-Mitglied Ein in einer PS-Series Gruppe konfiguriertes Dell EqualLogic PS-Series Array.
Array-Seriennummer In der Dell EqualLogic PS-Series Arrayumgebung eine eindeutige
ASM/ME Siehe Auto-Snapshot Manager/Microsoft Edition.
ASM/VE Siehe Auto-Snapshot Manager/VMware Edition.
Asset Management Appliance
(Appliance zur Systemverwaltung)
Eine Standardschnittstelle, die dem Betriebssystem die Steuerung der
Konfiguration und Energieverwaltung ermöglicht.
Hyper-V sowie Personas) die optionale, auf Komponenten installierte Software,
mittels derer der Controller die Koponenten verwaltet und ihre
Netzwerkeigenschaften festlegt.
Gruppen können mehrere Mitglieder besitzen.
Identifikationszeichenkette für das Dell EqualLogic PS-Series Array, die auf der
Hardware des Arrays verschlüsselt ist. Siehe Service Tag.
Eine Lösung zur Anlagenverwaltung für IT-Mitarbeiter auf Basis der Dell KACEAppliance, die Software und Lizenzen überwacht. Sie automatisiert die
Verwaltung von Bestandslisten, Softwareanlagen, Versionen, Upgrades und
Computern über eine webgestützte Anzeigetafel.
Bestands-Tag Ein individueller Code, der dem System aus Sicherheits- oder
Überwachungsgründen üblicherweise vom Systemadministrator zugewiesen
wird.
Zugewiesene Laufwerke Im Dell Compellent Storage Center die physischen Datenträger, die einem
Laufwerksordner zur Verwaltung zugewiesen und zur Speicherung von
3
Volumes und Replays verwendet werden. Siehe Laufwerksordner,
Speicherpool.
Assignment Mode
(Zuweisungsmodus)
async/Asynchrone Replikation Der Vorgang, bei dem Daten auf lokalen Speicher geschrieben werden und
Automatische RAID-Konfiguration Im Kontext von Dell EqualLogic PS-Series Gruppen ein interner Prozess, der
Auto-Snapshot Manager/Microsoft
Edition (ASM/ME)
Auto-Snapshot Manager/VMware
Edition (ASM/VE)
Verfügbarer Speicherplatz Menge des gesamten Speicherplatzes auf allen Laufwerken.
Back-End Beim Dell Compellent Storage Center ein isoliertes und dediziertres Netzwerk,
Back-End-Netzwerk Verbindung zwischen Controller und Laufwerken im Dell Compellent Storage
Basisvolume (Reihe Dell EqualLogic
PS-Series)
Ein Mechanismus zur Steuerung, wie Personas und VMRacks den Hosts auf
Basis der Verfügbarkeit von HBAs im Host zugewiesen werden. Siehe HBA.
dann in einer Warteschlange auf die Speicherung auf einem entfernten SAN
warten. Wenn das lokale SAN vor Durchführung des Schreibvorgangs ausfällt,
kann die Replikation möglicherweise fehlschlagen. Siehe Replikation,
synchrone Replikation, Remote Instant Replay.
das benutzerdefinierte RAID-Verfahren auf dem Array konfiguiert.
Eine Snap-in-Konsolenanwendung für die Microsoft Verwaltungskonsole, mit
der Smart Copies verwaltet werden können.
Eine webgestützte Anwendung, die zusammen mit virtuellen VMwareUmgebungen die Verwaltung von Smart Copies ermöglicht.
das den Controller oder Speichercluster (bzw. ein redundantes Controllerpaar)
mit lokalen Laufwerkgehäusen verbindet.
Center Controller.
Ein auf dem Computer gemountetes und über seinen unter Windows
zugewiesenen Laufwerkbuchstaben (beispielsweise G:) oder Mount-Point
erreichbares Volume.
Basisvolume (Dell EqualLogic Group
Manager)
Baseboard Management Controller
(BMC)
Blade Beim Dell AIM SDK ist ein Blade ein Element der Host-Superklasse. Bei
BMC Siehe Baseboard Management Controller.
Startfähiger Datenträger Eine CD, SD-Karte oder ein USB-Speichermedium, mit dem das System
Cache Schneller Speicherbereich, der eine Kopie von Daten oder Anleitungen enthält,
CHA Siehe Compellent Host Adapter.
Challenge Handshake Authentication
Protocol (CHAP)
4
Ein Volume, das Snapshots aufweist. Snapshots hängen vom Basisvolume
ab. Ist das Basisvolume zerstört, wurden die Snapshots entfernt.
Ein Modul für die Serververwaltung, welches das IPMI-Protokoll (Intelligent
Platform Management Interface) implementiert. Im Rahmen des Dell AIM
verwendet der Controller den BMC zur Remote-Steuerung einiger
Servermodelle.
modularen Dell-Systemen bezieht sich Blade auf einen modularen in ein
Gehäuse eingebauten Server.
gestartet werden kann, wenn ein Start von der Festplatte nicht möglich ist.
um die Zugriffszeiten auf Daten zu verkürzen.
Ein Protokoll zur Netzwerkanmeldung mit einem verschlüsselten Anfrage- und
Antwort-Verfahren. Wird bei Hosts, die den korrekten Benutzernamen und das
korrekte Kennwort angeben, zur Einschränkung des Zugriffs auf Volumes und
Snapshots verwendet. CHAP wird ebenfalls für Anmelde-/Administratorkonten
genutzt.
Kanal In der Dell/AIM-Umgebung eine von bis zu acht physischen Verbindungen, die
Switch-Ports zugewiesen werden können und über bis zu acht physische
Netzwerkkarten mit einer Persona verbunden werden können. Ein Netzwerk
kann mit ein oder zwei bevorzugten Kanälen für den Datenverkehr konfiguriert
werden, damit bei Ausfall des bevorzugten Kanals der Datenverkehr unsichtbar
zum anderen Kanal geleitet wird.
CHAP Siehe Challenge Handshake Authentication Protocol.
Gehäuse-Switch Im Kontext des Dell AIM ein Ethernet-Switch in einem
Gehäuseschacht. Gehäuse-Switches werden durch den Controller verwaltet.
Client Device Communication
Certificate
Clusterknoten Ein physisches Mitglied eines Ressourcen-Clusters wie beispielsweise ein
Sammlung Beim ASM/ME sind Sammlungen zusammengehörige Gruppen von
Compellent Host Adapter (CHA) In jedem Controller eines Dell Compellent Storage Center befindliche Karte/
Konfiguration Die Datenbank, die den gesamten Inhalt und die Konfiguration der Dell AIM
Conservation Mode
(Erhaltungsmodus)
Im Kontext des EKM ein spezieller Verschlüsselungscode, durch den ein Client
mit dem Server kommunizieren kann.
Host in einem Servercluster oder ein SAN in einem Speichercluster.
Speicherobjekten wie Volumes, Snapshots oder Anwendungskomponenten
und werden im Baumdiagramm der ASM-Konsole durch Knoten unter dem
Masterknoten der jeweiligen Sammlung dargestellt. Beim Dell EqualLogic
Group Manager erscheinen Volume- und Replika-Sammlungen sowie
benutzerdefinierte Snapshot-Sammlungen in der Hierarchie unter der VolumeAnsicht.
Akku für den internen Cache. Der Speicher des Schreibcache wird auf die
Cache-Karte gespiegelt. Auf einem Dell Compellent Storage Center mit zwei
Controllern enthält die Cache-Karte von Controller 1 die Spiegelung für
Controller 2 und die Cache-Karte von Controller 2 die Spiegelung für Controller
1. Auf einem Dell Compellent Storage Center mit einem Einzelcontroller enthält
die Cache-Karte die Spiegelung für den Einzelcontroller.
Umgebung beschreibt.
Ein Datenbewahrungsmodus des Dell Compellent Storage Center, der aktiviert
wird, wenn der verbleibende freie Speicherplatz unter einen kritischen
Schwellenwert sinkt (typischerweise 10%, bis zu 32 GB). Im ConservationModus gibt das Dell Compellent Storage Center eine Warnung aus, verhindert
die Erstellung neuer Volumes und gibt Replays schneller frei, um Speicherplatz
zu gewinnen. Siehe Notfallmodus.
Konsole Die webgestützte Benutzeroberfläche, mit der Elemente in der Dell AIM
Umgebung überwacht und bearbeitet werden können. Die Dell AIM Konsole
befindet sich im Dell AIM Controller.
Kontrollmodul In Dell EqualLogic PS-Series Arrays die physische Prozessor- und
Schnittstellenkomponente. Ein Kontrollmodul enthält in seinem Flash-Speicher
die Firmware der Dell EqualLogic PS-Series und sichert vorübergehend die
5
unterbrechungsfreie Stromversorgung für Daten im Cachespeicher. Es verfügt
über mehrere Netzwerkschnittstellen und einen optionalen seriellen Port. Ein
Array kann zwei Hot-Swap-fähige, doppelt redundante Controller enthalten.
Dabei bedient das aktive Kontrollmodul die E/A, während das zweite
Kontrollmodul Daten in seinem Cache spiegelt.
Bedienfeld Teil des Systems, der die Anzeigen und Bedienelemente enthält, z.B. den
Netzschalter und die Betriebsanzeige.
Steuerungsport Der iSCSI-Zielport, mit dem iSCSI-Initiatoren (Server) für Speicherabfragen
verbunden werden. In einem für den Virtual-Port-Modus konfigurierten Dell
Compellent Storage Center wird für jede iSCSI-Fault-Domain ein
Steuerungsport erstellt, um den iSCSI-Datenverkehr zum entsprechenden
virtuellen Port zu leiten.
Controller (Dell AIM) Software, die die physische und virtuelle Hardware, Software und
Netzwerkkonfigurationen verwaltet und die Dell AIM Konsole beherbergt. Bei
einem Paar dynamischer Controller läuft jeder Controller auf einem dedizierten
Server, verfügt jedoch über eine gemeinsame Konfigurationsdatenbank und
weitere Schlüsseldateien in einem gemeinsamen Dateisystem.
Controller (Dell Compellent) Bietet Gruppierung von Festplatten (RAID), E/A-Routing, Fehlererkennung und
Datenwiederherstellung. Stellt die Intelligenz des gesamten Dell Compellent
Storage Center Untersystems dar. Jedes Storage-Center-System enthält
mindestens einen Controller. Storage Center und Controller empfehlen
Korrekturmaßnahmen zur Verbesserung der Leistung und Verfügbarkeit des
Systems.
Controller Services
(Controllerdienste)
Copilot Services (Kopilotendienste) Innerhalb des Dell Compellent Storage Center die Kombination aus zentralen
Copy-Mirror-Migrate (KopierenSpiegeln-Migrieren)
Credential Store Im Kontext des EKM eine Ablage, die Zugangsdaten von Sitzungen enthält.
Cryptographic Object Ein Verfahren zur Sicherung von Daten.
Data Collector Komponente des Dell Compellent Enterprise Manager, die im Hintergrund auf
Im Kontext des Dell AIM die virtuelle(n) IP-Adresse(n), die der Controller zur
Kommunikation mit dem System Control Network (SCN), verwalteten Switches,
der Konsole, der Befehlszeilenschnittstelle (CLI) etc. verwendet. In der
Standardeinstellung ist dies eine einzelne virtuelle IP-Adresse auf dem aktiven
Controller; es können jedoch auch eindeutige Adressen für die Dienste „SCN
Services“ und den SNMP Trap Collector festgelegt werden.
Support-, Produktinformations- und Vertriebsressourcen, die das System
proaktiv überwachen und zur Steigerung der Leistung und Optimierung der
Systemverfügbarkeit korrigierende Maßnahmen einleiten.
Eine Funktion des Dell Compellent Storage Center, die das Migrieren von
Volumes zwischen unterschiedlichen Laufwerktypen und RAID-Levels
ermöglicht.
Zugangsdaten sind sicherheitsrelevante Informationen wie Benutzernamen,
Kennwörter oder Zertifikate.
einem Server ausgeführt wird und Informationen zu allen Storage-CenterSystemen erfasst, die mit dem Server verbunden sind.
6
Data Instant Replay Eine Funktion des Dell Compellent Storage Center, die in festgelegten
Intervallen speichereffiziente Point-in-Time-Kopien (PITC) eines Volumes auf
dem lokalen SAN anlegt, so dass ein Volume gegebenenfalls auf einen
früheren Zeitpunkt zurückgesetzt werden kann. Siehe Replay, Snapshot.
Data Progression Eine Funktion des Dell Compellent Storage Center, die Datenseiten auf Basis
der E/A-Aktivität (Nachfrage) automatisch auf Geräte mit höherer oder
niedrigerer Leistung transferiert. Siehe Tiered Storage (mehrstufige
Speicherung).
DDR Siehe Double-Data Rate.
Delegierter Speicherplatz Im Kontext des Dell EqualLogic Group Manager in einer Gruppe
zurückgehaltener Speicherplatz für die Speicherung empfangener Replika für
einen Partner.
Dell Encryption Key Manager (EKM) Der Dell Encryption Key Manager (EKM) sichert auf LTO-Bändern gespeicherte
Daten durch die Verwaltung von Verschlüsselungscodes für Dell-Lösungen für
die Bandautomation.
Dell Remote Access Controller
(DRAC)
Gerätetreiber Programm, über das die Kommunikation des Betriebssystems oder eines
DHCP Siehe Dynamic Host Configuration Protocol.
Digital Versatile Disc Digital Versatile Disc oder Digital Video Disc (DVD).
Laufwerksordner Beim Dell Compellent Storage Center eine Sammlung physischer
Laufwerksposition Beim Dell Compellent Storage Center die Position eines Laufwerkschachts
DNS Siehe Domain Name System.
Eine Schnittstellenkarte mit der Fähigkeit zur bandexternen Verwaltung. Der
Controller verfügt über einen eigenen Prozessor, Speicher,
Netzwerkverbindung und Zugang zum Systembus und ermöglicht
Systemadministratoren die Remote-Steuerung von Systemen in einem
Netzwerk.
anderen Programms mit einem Peripheriegerät gesteuert wird.
Datenspeichergeräte (Laufwerke, SSDs), die von einem Benutzer angesehen
und verwaltet werden können. Laufwerksordner legen den/die Speicherpool(s)
fest, von denen Volume-Speicherplatz zugewiesen wird. Obwohl
Laufwerksordner mehreren Speicherpools zugeordnet werden können, ist die
Leistung des Dell Compellent Storage Center am höchsten, wenn alle
Laufwerke demselben Ordner und Speicherpool zugewiesen werden.
innerhalb seines Gehäuses in Zeilen-Spalten-Notation. So bezieht sich
beispielsweise die Laufwerksposition 01-02 auf den Schacht in der ersten
Reihe von oben und der zweiten Spalte von links.
Domain Name System (DNS) Ein Verfahren zum Übersetzen von Internet-Domänennamen, wie z.B.
www.example.com, in IP-Adressen wie 208.77.188.166.
Ruhende Persona In der AIM-Umgebung eine Persona, die momentan weder auf einem Host läuft
noch darauf wartet.
Double-Data Rate (DDR) Eine Technologie in Speichermodulen zur potenziellen Verdoppelung der
Datenrate, indem Daten sowohl an der ansteigenden als auch der abfallenden
Flanke eines Taktzyklus übertragen werden.
7
DRAC Dell Remote Access Controller (DRAC).
DRAM Siehe Dynamic Random-Access Memory.
Doppelt Redundant Beim Dell Compellent Storage Center eine Option von Speicherprofilen zum
Schutz gegen den Verlust jedes einzelnen von zwei Laufwerken; erfolgt
typischerweise durch die Verwendung von RAID 10 und/oder RAID 6.
DVD Siehe Digital Versatile Disc.
Dynamic Host Configuration Protocol
(DHCP)
Dynamic Random-Access Memory
(DRAM)
EKM Siehe Dell Encryption Key Manager.
EKM Administrator Im Kontext des EKM der Superbenutzer, der Benutzer und Gruppen erstellen
EKM Encryption Manager
(tklmadmin)
Emergency Mode (Notfallmodus) Beim Dell Compellent Storage Center ein Modus, der aktiviert wird, wenn das
Gehäuse Ein physisches Gehäuse, das für mehrere Laufwerke eine gemeinsame
Umgebung Im Kontext des Dell AIM der Bestand von Hardware, Software und
Eth0 Siehe Ethernet Port 0.
Verfahren zur automatischen Zuweisung von IP-Adressen zu einem ClientSystem.
Der RAM eines Systems besteht normalerweise ausschließlich aus DRAMChips.
und löschen kann.
Im Kontext des EKM der tägliche Benutzer, der Schlüssel und Geräte erstellt
oder löscht.
System aufgrund fehlenden freien Speicherplatzes nicht mehr betriebsfähig
ist. Im Notfallmodus wird sämtliche Server-E/A abgelehnt, sämtliche Volumes
werden offline genommen und können nur dann wieder online gehen, wenn
genügend Speicherplatz für die Beendigung des Notfallmodus frei gemacht
wird. Siehe Conservation-Modus.
Schnittstelle für die Stromversorgung und die Kühlung bereitstellt.
Netzwerkkonfigurationen, die durch einen Dell AIM Controller verwaltet
werden.
Eth1 Siehe Ethernet Port 1.
Ethernet Port 0 (Eth0) Beim Dell Compellent Storage Center ist Eth0 eine für die Verwaltung
reservierte Ethernet-Schnittstelle.
Ethernet Port 1 (Eth1) Beim Dell Compellent Storage Center ist Eth1 eine für die Kommunikation
zwischen Controller-Prozessen, das Clustering oder Fernreplikation reservierte
Ethernet-Schnittstelle.
Externes Netzwerk Im Kontext der Dell AIM Umgebung ein Netzwerk, das nicht Teil der Dell AIM
Umgebung, jedoch physisch und logisch mit ihr verbunden ist.
Externer Switch Im Kontext der Dell AIM Umgebung ein Switch, der nicht Teil der Dell AIM
Umgebung, jedoch physisch und logisch mit ihr verbunden ist.
Fabric Eine Kombination aus miteinander verbundenen Switches die als einheitliche
Routing-Infrastruktur fungieren. Sie ermöglicht mehrere Verbindungen
zwischen Geräten auf einem SAN und erlaubt die reibungslose Eingliederung
8
neuer Geräte. Eine FC- (oder iSCSI-)Topologie mit mindestens einem auf dem
Netzwerk vorhandenen Switch.
FastTrack Ein optionales Storage-Center-Dienstprogramm, das die aktivsten Daten auf
den äußeren (schnelleren) Laufwerksspuren platziert.
FAT Siehe File Allocation Table.
Fault Domain Innerhalb der Dell Compellent Storage Center Umgebung bezeichnet eine Fault
Domain eine Ausfallgruppe. Im Virtual-Port-Modus können alle Front-End-Ports
Teil der einen Fault Domain sein. Im Legacy-Modus stellt jeder primäre und
reservierte Port eine Fault Domain dar.
FC Siehe Fibre Channel.
FE Siehe Front-End-Netzwerk.
Fibre Channel (FC) Eine Hochgeschwindigkeitsverbindung mit der Server mit Controllern und
Back-End-Laufwerkgehäusen verbunden werden. FC-Komponenten sind
beispielsweise HBAs, Hubs, Switches und die Verkabelung. Der Begriff FC
erstreckt sich auch auf ein serielles Vollduplex-Hochgeschwindigkeitsprotokoll
für die Kommunikation, das Datenübertragungsraten von bis zu 10 Gigabit pro
Sekunde ermöglicht.
File Allocation Table (FAT) Die Dateisystemstruktur, mittels derer MS-DOS die Dateispeicherung
organisiert und verfolgt. Unter dem Betriebssystem Microsoft Windows kann
optional ein FAT-Dateisystem verwendet werden.
File Transfer Protocol (FTP) Ein Protokoll auf Anwendungsebene, mit dem große Dateien zwischen
Rechnern oder Hosts transferiert werden.
Front-End-Netzwerk (FE) Die Komponente im SAN-Datenschreibfluss (Server zu Switch zu Controller zu
Laufwerken) des Dell Compellent Storage Center, die Schreibvorgänge von
Daten initiiert. Im Allgemeinen stellen Server (oder Switches) das Front-End
des Controllers dar. Ein Storage-Center-System, das Daten auf ein entferntes
System repliziert, stellt jedoch das Front-End des entfernten Systems dar.
Siehe Back-End.
FTP Siehe File Transfer Protocol.
GB Siehe Gigabyte.
Gigabyte (GB) 1024 Megabyte bzw. 1.073.741.824 Byte. In Bezug auf Festplattenkapazitäten
wird der Wert jedoch üblicherweise auf 1.000.000.000 Byte gerundet.
Gruppe Siehe PS-Series Gruppe.
HBA Siehe Host Bus Adapter.
HIT/LE Siehe Host Integration Tools für Linux.
HIT/ME Siehe Host Integration Tools für Windows.
HIT/VM Siehe Host Integration Tools für VMware
Host In der Dell AIM Umgebung kann ein Host ein physischer Server (rackmontiert
oder Blade) oder eine Virtual Machine sein. Beim Dell AIM SDK eine
Superklasse, die Bladeserver, rackmontierte Server und Virtual Machines
(VMs) umfasst.
9
Host-Adapter Ein Controller, der die Kommunikation zwischen dem Systembus und dem
Peripheriegerät, typischerweise einem Speichergerät, regelt.
Host-Bus-Adapter (HBA) Ein Gerät (typischerweise eine Add-on-Karte), das einen Server mit einem SAN
(Storage Area Network) verbindet. Jeder HBA wird vom SAN anhand seiner
WWPN (World Wide Port Number) eindeutig identifiziert. Gebräuchliche HBATypen sind Fibre Channel und iSCSI.
Host Integration Tools für Linux (HIT/
LE)
Host Integration Tools für Windows
(HIT/ME)
Host Integration Tools für VMware
(HIT/VM)
Hotspare-Laufwerk (Ersatzlaufwerk) In der Dell Compellent Storage Center Umgebung ist ein Hotspare-Laufwerk ein
Hot-Plug Die Fähigkeit, ein Gerät in das Hostsystem einzusetzen oder zu installieren
Ein Satz von Werkzeugen zur Integration von ESX-Systemen in Dell EqualLogic
PS-Series Speicherarrays. Er enthält den Auto Snapshot Manager/VMware
Edition (ASM/VE), den EqualLogic Datastore Manager und das EqualLogic
Virtual Desktop Deployment Utility.
Ein Satz von Anwendungen zur Konfigurierung und Verwaltung von Arrays. Er
enthält den ASM/ME, das DSM (Multipath I/O Device Specific Module) und den
RSW (Remote Setup Wizard).
Ein Satz von Werkzeugen zur Integration von Linux-Systemen in Dell
EqualLogic PS-Series Speicherarrays. Er enthält das Remote Setup Wizard
Command Line Interface (RSWCLI), die EqualLogic Host Performance and
Configuration Tuning Suite (eqltune) und die EqualLogic Log Gathering Facility
(eqllog).
Backup-Laufwerk für Sicherungskopien. Falls ein aktives Array ausfällt,
gliedert der Controller das Hotspare in das aktive Array ein und führt einen
fliegenden Neuaufbau der Daten durch. Während das Hotspare ohne
menschliches Zutun in ein aktives Laufwerk umgewandelt wird, sollten Sie
daran denken, das ausgefallene Laufwerk so bald wie möglich auszutauschen,
damit das Array wieder durch ein neues Hotspare geschützt ist. Hotspares
können sich über mehrere Laufwerkgehäuse erstrecken. Storage-CenterHotspares können eine andere Kapazität aufweisen als das Datenlaufwerk, das
sie ersetzen.
(typischerweise eine Festplatte oder einen internen Lüfter) während das
System eingeschaltet und in Betrieb ist. Wird auch als Hot-Swap bezeichnet.
Hot-Swap Siehe hot-plug.
E/A Eingabe/Ausgabe. Ein Eingabegerät ist beispielsweise eine Tastatur, ein
Ausgabegerät ein Monitor. Im Allgemeinen kann die E/A-Aktivität von der
Rechenaktivität unterschieden werden.
ID In der Dell AIM Umgebung eine eindeutige Kennung für ein Element, die ihm
zugewiesen wird, wenn es zur Umgebung hinzugefügt wird.
iDRAC Siehe integration Dell Remote Access Controller
IKEv2-SCSI Ein Protokoll für die Zertifikaterstellung.
Image Speziell beim Dell AIM die Bits, die auf einem Laufwerk oder einem
Speicherarray gespeichert sind, das eine Persona oder VMRack startet, sowie
Informationen, die der Controller zum Starten dieses Image auf einem
bestimmten Hosttyp verwendet. Eine Persona oder ein VMRack kann
beispielsweise mit mehr als einem Image konfiguriert werden, so dass die
10
Loading...