Dell NetWorker Deploy 2023 flashcards
Dell NetWorker Deploy 2023 · Build recall with a focused review session.
32 cards. Read the term and the definition here. The deck at the top of this page is optional.
- NetWorker datazone
- A datazone is one NetWorker server plus its clients, storage nodes, and devices. A server cannot share clients or devices with another datazone, so each datazone is managed independently.
- nsrd daemon
- The NetWorker server daemon that maintains the resource allocation database (RAP) and coordinates jobs. It runs on the NetWorker server and must be active for any backup or recovery operation.
- nsrmmd daemon
- The media multiplexor daemon that performs read and write operations to devices on behalf of a storage node. Multiple nsrmmd processes can run concurrently to increase device throughput.
- Client file index
- The database that tracks the file paths contained in each backed-up save set. It enables browsing and file-level recovery, and it is backed up as part of the server's bootstrap save set.
- Media database
- The database that records which save sets reside on which volumes, including clone copies and retention. It is queried with mminfo and is required for save set recovery.
- Bootstrap save set
- A special save set containing the server's RAP database, client file index, and media database. It is required to rebuild the NetWorker server after a catastrophic loss.
- NetWorker Authentication Service
- The JBoss-based service that authenticates NetWorker users and administrators, including local accounts and external AD/LDAP authorities. It listens on port 9090 by default and uses TLS certificates.
- NMC server
- The NetWorker Management Console server, which provides the GUI and reporting. It can be installed on the NetWorker server or a separate host and requires its own database and the gstd service.
- Name resolution requirement
- Every host in a datazone must resolve its own and the server's hostname forward and reverse consistently. Mismatched short and long names cause authentication and client registration failures.
- Default admin account
- The initial administrator account is created in the NetWorker Authentication Service during installation, not only in the RAP database. It is used to log in to the NMC and to administer the datazone.
- Policy and workflow
- A policy contains workflows, and each workflow contains action groups. The workflow defines the order and schedule of actions, while the group binds clients to the workflow and sets start times.
- Backup levels
- Full backs up all data; incremental backs up changes since the last backup of any level; level-based (1-9) backs up changes since the last backup of a lower level. Log-based and synthetic levels also exist.
- Schedule resource
- A resource that defines which backup level runs on which day of the week or month. It is attached to the action or protection group rather than directly to the client.
- Client save set
- The list of paths or volumes a client backs up, such as /home or ALL. It is defined on the client resource along with the backup command and remote access fields.
- Directive resource
- A resource that controls what is backed up and how, using keywords such as skip, compress, index, and asm. Directives are applied per client and can be nested.
- Browse and retention time
- Browse time is how long a save set remains visible for recovery; retention time is how long the data is kept. Browse time must be less than or equal to retention time.
- AFT device
- An advanced file type disk device that stores NetWorker volumes as files under a filesystem path. It uses the adv_file media type and must be labeled before use.
- Data Domain device
- A storage target on a Data Domain system accessed through DD Boost. NetWorker uses it as a storage node target and can deduplicate data natively on the DD system.
- Pool
- A collection of volumes that match criteria such as media type, retention, and optionally device. A volume can belong to only one pool at a time.
- Volume labeling
- The process of writing a NetWorker label and pool name to a volume. Relabeling destroys existing data on that volume, so relabel only when the data is no longer needed.
- Volume recycling
- A volume becomes recyclable when all save sets on it are past their retention period. Recycling overwrites the volume's data and returns it to the pool for reuse.
- Device access mode
- The mode that controls device use: read/write allows both, read-only prevents new writes, and offline takes the device out of service for maintenance.
- Directed recovery
- A recovery in which data from one client is restored to a different client. It requires appropriate remote access and remote user permissions on both the source and destination clients.
- Save set recovery
- A recovery that restores an entire save set, including its index, without browsing individual files. It is used when the client file index is unavailable or a full restore is needed.
- Clone operation
- A copy of save sets from a source volume to a clone volume, usually in a different pool. The clone copy is tracked in the media database as a separate instance.
- Synthetic full backup
- A full backup created by cloning and merging incremental save sets rather than reading the client again. It reduces the number of save sets needed for a full recovery.
- Bootstrap recovery
- The process of rebuilding a NetWorker server from its most recent bootstrap save set. It restores the RAP database, client file index, and media database.
- daemon.raw log
- The primary NetWorker server log that records job activity, authentication errors, and device events. It is rendered to readable text with the nsr_render_log utility.
- mminfo command
- A command that queries the media database and reports save sets and volumes. For example, mminfo -avot lists all volumes, and queries can filter by client or date.
- nsrinfo command
- A command that queries the client file index to list indexed save sets and their contents. For example, nsrinfo -n all -s server client lists all indexed save sets for a client.
- NMC reporting
- The reporting feature of the NetWorker Management Console that produces backup and recovery reports. It requires the NMC database and a reachable datazone server.
- RAP user groups
- Groups in the resource allocation database that grant privileges to NetWorker users. The Administrators group has full access, while other groups can be limited to specific operations.