job flowA job flow specifies the complete processing of the data. It's comprised of one or more steps, which specify all of the functions to be performed on the…
keyA block, often used in a series, which projects beyond the edge of the enframement of an opening and is joined with the surrounding masonry.
key pairA set of security credentials you use to prove your identity electronically. A key pair consists of a private key and a public key.
key prefixA logical grouping of the objects in a bucket. The prefix value is similar to a directory name that enables you to store similar data under the same…
launch configurationA set of descriptive parameters used to create new EC2 instances in an Auto Scaling activity.
launch permissionAn Amazon Machine Image (AMI) attribute that allows users to launch an AMI.
LibtoolLibtool is a GNU library support script that abstracts shared library interface. Used by GSI/Sysconfig.
LifecycleThe records lifecycle is the life span of a record from its creation or receipt to its final disposition.
linearly scalableThe system will be predictable and efficient in growing the application. If one server can process 1,000 transactions per second, two servers should be…
load balancerA load balancer is a combination of a DNS name and a set of ports, which together provide a destination for all requests intended for your application.
Local Replica Catalog (LRC)Stores mappings between logical names for data items and the target names (often the physical locations) of replicas of those items.
logical nameA case-sensitive unique string within an AWS CloudFormation template that identifies a resource, mapping, parameter, or output.
LSFA job scheduler mechanism supported by GRAM. For more information, see http://www.platform.com/Products/Platform.LSF.Family/Platform.LSF/.
machine utilizationThe amount of machine capacity used to complete a particular request (for example SELECT, GET, PUT, and so on), normalized to the hourly capacity of a…
mailbox providerAn organization that provides email mailbox hosting services. Mailbox providers are sometimes referred to as Internet Service Providers, even if they only…
main route tableThe default route table that any new VPC subnet uses for routing. You can associate a subnet with a different route table of your choice.
Management ConsoleAllows clients to access and manage AWS through a user-friendly interface. With this console, users can see all AWS services in one place, manage their…
manifestAn XML document that describes requirements for an application. The application manifest can be a separate file or embedded in the application's .exe file.
mapperAn executable that splits the raw data into key/value pairs. The reducer uses the output of the mapper, called the intermediate results, as its input.
mappingDetermining the physical location of a gene or genetic marker on a chromosome. (See Continuous map, Genetic map, Physical map.)
message IDAmazon SQS: The identifier returned when you send a message to a queue.
Message Passing Interface (MPI)The Message Passing Interface (MPI) is a library specification for message-passing, proposed as a standard by a broadly based committee of vendors…
metadataMetadata is information about a particular data set which may describe, for example, how, when, and by whom it was received, created, accessed, and/or…
metaschedulerA program that typically operates at a higher level than a job scheduler (typically, above the GRAM level). It schedules and submits jobs to GRAM services.
Metric(Software). An indicator, which measures some specific attribute of the software development process. 181
metric nameThe primary identifier of a metric, used in combination with a namespace and optional dimensions.
micro instanceA type of EC2 instance that is more economical to use if you have occasional bursts of high CPU activity.
migrationMoving files to another computer application or platform; may require conversion to a different format.
MMJS subjobOne of the executable jobs in a multijob rendezvous.
MODE commandIn reality, GridFTP is not one protocol, but a collection of several protocols.
MPI (The Message Passing Interface)The Message Passing Interface is an application interface allowing formatted messages to enter and leave an application.
Multi-AZ deploymentA primary DB instance that has a synchronous standby replica in a different Availability Zone.
multi-tenancyThe system is built in a way that allows several customers to share infrastructure, without the customers being aware of it and without compromising the…
multijobA job that is itself composed of several executable jobs; these are processed by the MMJS subjob. See also MMJS subjob.
multijob rendezvousA mechanism used by GRAM to synchronize between job processes in a multiprocess job and between.
multipart uploadA feature that allows you to upload a single object as a set of parts.
MultitoolA Cascading application that provides a simple command-line interface for managing large datasets.
N1Sun's architecture for the next -generation data center. The architecture is designed to make the entire data center behave as a single, unified system.
namespaceA prefix applied to URIs, URNs, and XML entities to prevent naming conflicts.
NAS (Network Attached Storage)NAS provides storage resources to servers and workstations over a shared or dedicated network.
NAT instanceAn instance that is configured to perform NAT in a VPC. A NAT instance enables private instances in the VPC to initiate Internet-bound traffic without…
Network ElementThe components of a network in ARC/INFO, including network links and network nodes, of which there are three types: stops, centers, and turns.
network end pointsA network endpoint is generally something that has an IP address (a network interface card).
Network File System (NFS)The Network File System (NFS) protocol allows a given computer to access a disk on another computer over a network in a transparent fashion.
objectAn entity such as a file, folder, shared folder, printer, or Active Directory object, described by a distinct, named set of attributes.
ODN (Open Data Network)An Open Data Network is capable of carrying all kinds of services for all kind of users from all kind of providers, for example, telephone or computer…
OGSA (Open Grid Services Architecture)The Open Grid Services Architecture is a standard setting the base for communication in grids across virtual organizations.
on demandOne of the primary advantages of using the cloud is the ability to access resources as you need them, including processing power, of memory, network…
On Demand BusinessIBM marketing term that denotes a company whose business processes - integrated end-to-end across the company and with key partners, suppliers and…
on-demand instanceAn Amazon EC2 pricing option that charges you for compute capacity by the hour with no long-term commitment.
OpenLDAPhttp://www.openldap.org Open Source Lightweight Directory Access Protocol in the C Language. h
OpenSSLSSL implementation used by GSI. Stands for Open Source Secure Sockets Layer. Distribution in the C Language. For more information, see http://www.openssl.
OperationThe manner in which a window unit opens, closes, locks, or functions; e.g., casement, double-hung, etc.
operation providerA reusable Java component that implements one or more web service functions. A web service can be composed of one or more operation providers.
OpsWorksA deployment service that allows DevOps to model and manage anything from load balancers to databases.
PaaS (Platform as a Service)is comparable to renting servers from large data centres. The "rented server" is yours to do with as you please so you can put any stack you want on the…
paginationSome APIs that return a potentially large list of records can return a subset by using a value to set the maximum number of returned records.
paid AMIAn Amazon Machine Image (AMI) that you sell to other Amazon EC2 users.
parallelismWhen speaking about GridFTP transfers, parallelism refers to having multiple TCP connections between a single pair of network endpoints.
partIn a multipart upload request, each part is a contiguous portion of the object's data.
PeriodUsually designated by T. This is the time interval of one complete oscillation of any wave. See Wavelength.
permissionAuthorization for a user to perform an action, such as sending e-mail for another user or posting items in a public folder.
persistent storageA long-term data storage solution. Options within AWS are: Amazon S3, Amazon EBS.
physical file nameThe address or the location of a copy of a file on a storage system.
physical nameA unique label AWS CloudFormation assigns to each resource when creating a stack.
PigAn air manifold having a number of pipes which distribute compressed air coming through a single large line.
PolicyThe contract form issued by the company to explain the coverage provided. It is a legal document.
Policy-based ManagementA method of managing system behavior or resources by setting "policies" (often in the form of "if-then" rules) that the system interprets.
PoolingCombining of assets of different entities, i.e., two or more counties, for efficient investment purposes while maintaining separate accounting trails.
Portable Batch System (PBS)A job scheduler mechanism supported by GRAM. For more information, see http://www.openpbs.org.
Premium SupportA one-on-one, fast-response support channel that AWS customers can subscribe to for support for AWS infrastructure services.
PrincipalFace value of an obligation, such as a bond or a loan, that must be repaid at maturity.
Private CloudA cloud computing-like environment within the boundaries of an organization and typically for its exclusive usage.
private IP addressAll EC2 instances are assigned two IP addresses at launch, which are directly mapped to each other through Network Address Translation (NAT): a private…
private keyIn secure communication, an algorithmic pattern used to encrypt messages that only the corresponding public key can decrypt.
private subnetA VPC subnet whose instances cannot be reached from the Internet.
Project eLizaAn initiative launched by IBM in April 2001 to integrate autonomic capabilities into its products and services, including servers, storage, middleware…