IBM Spectrum Protect Admin flashcards

32 cards. Read the term and the definition here. The deck at the top of this page is optional.

dsmserv

Main IBM Spectrum Protect server executable. It starts a server instance, reads dsmserv.opt, and manages the database, recovery log, storage pools, and client sessions.

Recovery log

Records database changes before commit and enables roll-forward recovery. It consists of the active log and archived log files, both sized and placed during server planning.

Storage agent

Optional server component that lets a client move data directly over a SAN to tape or disk, bypassing the server for the data path and reducing LAN traffic.

Default server TCP port

IBM Spectrum Protect server listens on TCP port 1500 by default; the administrative client and backup-archive clients use TCPPORT 1500 unless configured otherwise.

REGISTER NODE

Server command that creates a client node with a name, initial password, and policy domain. The node can then authenticate and store backups or archives.

PASSWORDACCESS GENERATE

Client option that creates and stores an encrypted password locally, allowing scheduled and interactive operations without prompting the user for a password each time.

Client acceptor

Client service that listens for server schedule requests and starts the backup-archive client; used with the client scheduler service for server-initiated schedules.

dsm.sys

On UNIX and Linux clients, the system options file containing one or more SERVERNAME stanzas; dsm.opt selects the stanza and can add client-specific options.

Policy domain

A policy domain groups client nodes and contains policy sets, management classes, and copy groups that define backup and archive retention and destinations.

Management class

A named policy object within a policy set that contains a backup copy group and archive copy group; clients select one, with DEFAULT used when none is specified.

Backup copy group

Policy object that controls backup versioning and destination: VEREXISTS, VERDELETED, RETEXTRA, RETONLY, DESTINATION, MODE, and SERIALIZATION parameters.

VEREXISTS

Backup copy group parameter specifying how many backup versions of a file that still exists on the client are retained on the server.

Storage pool

Logical collection of volumes that holds client backup and archive data; defined with a device class and pool type, and can point to a NEXTSTGPOOL.

Migration thresholds

High and low percentages that trigger migration from a storage pool to its NEXTSTGPOOL. Defaults are HI=90 and LO=70; migration stops at LO.

Reclamation

Process that copies remaining data from a sequential volume whose reclaimable space exceeds the reclaim threshold, then frees the volume for reuse.

Collocation

Storage pool setting that keeps data from the same client node, file system, or group on fewer volumes, improving restore performance and reducing mount operations.

Incremental backup

Default client backup mode that sends only files that are new or changed since the last backup, based on management class and file modification dates.

RESTORE versus RETRIEVE

RESTORE recovers backup versions governed by backup copy groups; RETRIEVE recovers archived files governed by archive copy group RETVER retention.

Backup set

A self-contained collection of a client's backup data created with GENERATE BACKUPSET; it is stored in a storage pool and restored with the client RESTORE BACKUPSET command.

EXPIRE INVENTORY

Server process that removes expired backup versions and archive copies from the database and storage pools according to management class retention rules.

Client schedule

A schedule defined in a policy domain with TYPE=CLIENT that starts a backup, archive, restore, or command action on associated client nodes at set times.

Administrative schedule

Schedule with TYPE=ADMIN that runs server commands or scripts at specified times; it does not run on client nodes.

QUERY EVENT

Administrative command that displays scheduled events and their status, including pending, started, completed, failed, and missed, for a date range.

Server script

Named sequence of server commands created with DEFINE SCRIPT and executed with RUN SCRIPT; administrative schedules can invoke scripts for automation.

QUERY ACTLOG

Displays the server activity log; can filter by date, time, message number, and severity to diagnose errors and review recent server operations.

QUERY SESSION

Shows active client and administrative sessions with node name, session type, wait time, and bytes transferred; useful for monitoring load and hung sessions.

ANR message prefix

Three-letter prefix identifying IBM Spectrum Protect server messages; client messages typically begin with ANS, helping distinguish server from client errors.

QUERY DB

Displays database capacity, used space, free space, and utilization percentage; used with EXTEND DB when more database space is required.

SYSTEM authority

Highest administrative authority class in IBM Spectrum Protect; an administrator with SYSTEM can perform all server, policy, storage, operator, and security commands.

GRANT AUTHORITY

Server command that assigns administrative authority classes, such as SYSTEM, POLICY, STORAGE, OPERATOR, or ANALYST, to an existing administrator ID.

PASSEXP

Password expiration interval in days for a node or administrator; a value of zero disables expiration, allowing the password to remain valid indefinitely.

Client-side encryption

Client option that encrypts backup data before transmission using AES keys; because the server receives encrypted data, server-side deduplication cannot inspect it.