IBM Tivoli Storage Manager for UNIX and Linux Backup-Archive ...

client A software program or computer thatrequests services from a server.client acceptor daemon (CAD)See client acceptor.client acceptorAn HTTP service that serves the Javaapplet for the Web client to Webbrowsers. On Windows systems, the clientacceptor is installed and run as a service.On AIX, UNIX, and Linux systems, theclient acceptor is run as a daemon, and isalso called the client acceptor daemon(CAD).client domainThe set of drives, file systems, or volumesthat the user selects to back up or archivedata, using the backup-archive client.client nodeA file server or workstation on which thebackup-archive client program has beeninstalled, and which has been registeredto the server.client node sessionA session in which a client nodecommunicates with a server to performbackup, restore, archive, retrieve, migrate,or recall requests. Contrast withadministrative session.client options fileAn editable file that identifies the serverand communication method, andprovides the configuration for backup,archive, hierarchical storage management,and scheduling.client option setA group of options that are defined onthe server and used on client nodes inconjunction with client options files.client-polling scheduling modeA method of operation in which the clientqueries the server for work. Contrast withserver-prompted scheduling mode.client scheduleA database record that describes theplanned processing of a client operationduring a specific time period. The clientoperation can be a backup, archive,restore, or retrieve operation, a clientoperating system command, or a macro.See also administrative command schedule.client/serverPertaining to the model of interaction indistributed data processing in which aprogram on one computer sends a requestto a program on another computer andawaits a response. The requestingprogram is called a client; the answeringprogram is called a server.client system-options fileA file, used on AIX, UNIX, or Linuxsystem clients, containing a set ofprocessing options that identify theservers to be contacted for services. Thisfile also specifies communication methodsand options for backup, archive,hierarchical storage management, andscheduling. This file is also called thedsm.sys file. See also client user-options file.client user-options fileA file that contains the set of processingoptions that the clients on the system use.The set can include options thatdetermine the server that the clientcontacts, and options that affect backupoperations, archive operations,hierarchical storage managementoperations, and scheduled operations.This file is also called the dsm.opt file.For AIX, UNIX, or Linux systems, see alsoclient system-options file.closed registrationA registration process in which only anadministrator can register workstations asclient nodes with the server. Contrastwith open registration.collocationThe process of keeping all data belongingto a single-client file space, a single clientnode, or a group of client nodes on aminimal number of sequential-accessvolumes within a storage pool.Collocation can reduce the number ofvolumes that must be accessed when alarge amount of data must be restored.collocation groupA user-defined group of client nodeswhose data is stored on a minimalnumber of volumes through the processof collocation.commit pointA point in time when data is consideredconsistent.542 IBM Tivoli Storage Manager for UNIX and Linux Backup-Archive Clients Version 6.1: Installation and User’s Guide