DXC Technology Storage Backup Administrator Interview Questions, Process, and Tips

Deduplication is a data compression technique that eliminates duplicate copies of data, reducing storage space and improving efficiency.

• Deduplication is used to identify and remove redundant data.

• It compares incoming data with existing data and stores only unique instances.

• Deduplication can be performed at the file, block, or byte level.

• It helps in reducing storage costs and improving backup and restore times.

• Examples ...read more

Daemons in Avamar are background processes that perform various tasks such as data deduplication, backup scheduling, and replication.

• Avvagentd: Manages communication between the Avamar server and clients

• Avvcbimage: Performs backup and restore operations

• Avvcbjobd: Controls backup and restore job scheduling

• Avvcbrestore: Handles restore operations

• Avvcbrepd: Manages replication between Avamar grids

• Avvcbverify: Verifies the...read more

Client ID is a unique identifier assigned to a client device or application that connects to a storage backup system.

• Client ID is used to track and manage client devices or applications in a storage backup system.

• It helps in identifying and authenticating clients during backup and restore operations.

• Client ID can be a combination of alphanumeric characters or a generated unique identifier.

• Examples of client IDs include...read more

A backup agent is a software component that facilitates the backup and restore process by managing communication between the backup server and the devices being backed up.

• Backup agent acts as an intermediary between the backup server and the devices being backed up.

• It facilitates the transfer of data from the devices to the backup server and vice versa.

• Backup agents often provide features like compression, encryption, ...read more

vss admin list writers is a command used to list all the registered Volume Shadow Copy Service (VSS) writers on a Windows system.

• VSS writers are responsible for creating consistent snapshots of data on a system for backup purposes.

• The vss admin list writers command provides information about the state and availability of each VSS writer.

• It is commonly used to troubleshoot VSS-related issues and ensure that all writers ...read more