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Information Storage Management 认证题库题解系列 题4

2012年06月16日 ⁄ 综合 ⁄ 共 5762字 ⁄ 字号 评论关闭

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Work:

NetWorker

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The EMC NetWorker backup and recovery software centralizes, automates, and accelerates data backup and recovery operations across the enterprise. Following are the features of EMC NetWorker:

  • Supports heterogeneous platforms, such as Windows, UNIX, and Linux, and also supports virtual environments
  • Supports clustering technologies and open-file backup
  • Supports different backup targets: tapes, disks, and virtual tapes
  • Supports Multiplexing (or multi-streaming) of data
  • Provides both source-based and target-based deduplication capabilities by integrating with EMC Avamar and EMC Data Domain respectively
  • Uses 256-bit AES (advanced encryption standard) encryption to provide security for the backup data. NetWorker hosts are authenticated using strong authentication based on the Secure Sockets Layer (SSL) protocol.
  • The cloud-backup option in NetWorker enables backing up data to both private and public cloud configurations.

NetWorker provides centralized management of the backup environment through a GUI, customizable reporting, and wizard-driven configuration. With the NetWorker Management Console (NMC), backup can be easily adminis-tered from any host with a supported web browser. NetWorker also provides many command-line utilities. To facilitate NetWorker administration, several reports are available through the NMC reporting feature. Data maintained in the NMC server database, gathered from any or all of the NetWorker servers, is used to prepare reports on backup statistics and status, events, hosts, users, and devices.

 

Avamar

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EMC Avamar is a disk-based backup and recovery solution that provides inher-ent source-based data deduplication. With its unique global data deduplication feature, Avamar differs from traditional backup and recovery solutions, by identifying and storing only unique subfi le data objects. Redundant data is identifi ed at the source, the amount of data that travels across the network is drastically reduced, and the backup storage requirement is also considerably reduced. The three major components of an Avamar system include Avamar server, Avamar backup clients, and Avamar administrator. Avamar server stores client backups and provides the essential processes and services required for client access and remote system administration. The Avamar client software runs on each computer or network server being backed up. Avamar administrator is a user management console application used to remotely administer an Avamar system. Following are the three Avamar server editions:

  • Software only:The Avamar Software edition is a software-only solution. The server software is installed on customer-supplied, Avamar-qualified hardware platforms.
  • Avamar Data Store:The Avamar Data Store edition includes both hard-ware and Avamar server software from EMC.
  • Avamar Virtual Edition:Avamar Virtual Edition for VMware is Avamar server software deployed as a virtual appliance.

The features of EMC Avamar follows:

  • Data deduplication: Ensures that data is backed up only once across the backup environment.
  • Systematic fault tolerance: Uses RAID, RAIN, checkpoints, and replica-tion, which provide data integrity and disaster recovery protection.
  • Standard IP network leveraging: Optimizes the use of a network for backup; dedicated backup networks are not required. Daily full backups are possible using the existing networks and infrastructure.
  • Scalable server architecture: Additional storage nodes can be added nondisruptively to an Avamar multinode server in Avamar Data Store to accommodate increased backup storage requirements.
  • Centralized management: Enables remote management of Avamar servers from a centralized location and through the use of the Avamar Enterprise Manager and Avamar Administrator interfaces.

 

RecoverPoint

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RecoverPoint is a high-performance, cost-effective, single product that provides local and remote data protection for both physical and virtual environments.

It provides faster recovery and unlimited recovery points.

RecoverPoint provides continuous data protection and performs replication between the LUNs that reside in one or more arrays at the same site.

RecoverPoint uses lightweight splitting technology either at the application server, fabric, or arrays to mirror a write to a RecoverPoint appliance.

The RecoverPoint family of products includes RecoverPoint/CL, RecoverPoint/EX, and RecoverPoint/SE.

RecoverPoint/CL is a replication product for a heterogeneous server and storage environment. It supports both EMC and non-EMC storage arrays. This product supports host-based, fabric-based, and array-based write splitters.

RecoverPoint/EX supports replication between EMC storage arrays and enables only array-based write splitting.

RecoverPoint/SE is a version of RecoverPoint targeted for VNX series arrays and enables only Windows-based host and array-based write splitting.

 

Data Domain

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The EMC Data Domain deduplication storage system is a target-based data deduplication solution.

Using high-speed, inline deduplication technology, the Data Domain system provides a storage footprint that is significantly smaller on an average than the original data set.

It supports various backup and enterprise applications in database, e-mail, content management, and virtual environments.

Data Domain systems can scale from small remote office appliances to large data-center systems. These systems are available as integrated appliances or as gateways that use external storage.

Data Domain deduplication storage systems provide the following unique advantages:

  • Data invulnerability architecture:Provides unprecedented levels of data integrity, data verifi cation, and self-healing capabilities, such as RAID 6 protection. Continuous fault detection, healing, and write verification ensure that the backup is accurately stored, available, and recoverable.
  • Data Domain SISL (Stream-Informed Segment Layout) scaling archi-tecture:Enables scaling of CPUs to add a direct benefit to the system throughput scalability
  • Support native replication technology:Enables automatic, secure transfer of compressed data over the wide area network (WAN) with minimum bandwidth requirement
  • Global compression:Highly efficient deduplication and compression technology, which radically changes storage economics

EMC Data Domain Archiver is a solution for long-term retention of backup and archive data. It is designed with an internal tiering approach to enable cost-effective, long-term retention of data on disk by implementing deduplication technology.

Answer:

Data Domain

 

Answer:

Data Domain

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