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VERITAS NetBackup White Paper

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VERITAS NetBackup User Manual
VERITAS NetBackup User Guide
VERITAS NetBackup Online Manual

Text of VERITAS NetBackup User Guide:

  • VERITAS NetBackup, Verifying Media A verification option allows the administrator to read NetBackup media and compare its contents to the online catalog of information in VERITAS NetBackup. Duplicating NetBackup Media By using the duplicate option, an administrator can create a second copy of media containing VERITAS NetBackup images. This is convenient for making copies for offsite storage. Administrators have the option of duplicating a multiplexed primary image into non-multiplexed (tar-compatible) images on secondary media, OR retain the multiplex

  • VERITAS NetBackup, Scheduling Each VERITAS NetBackup class has a set of schedules to control its backups and archives. These schedules are part of the class definition and each schedule for a class affects the entire list of clients and files in that class. A typical schedule might call for a weekly full backup followed by incremental backups every other day, as illustrated in Figure 12. Figure 12: Full and incremental backup scheduling. Among the attributes that the administrator specifies for each schedule are: • Type of Backup — specifies the types of backups available to the type of class you are configuring. For example, most UNIX clients will be in a standard class and you can select

  • VERITAS NetBackup, VERITAS NetBackup Backup Concepts The following sections explain the basic concepts involved in backup operations. Storage Units VERITAS NetBackup associates all storage devices and media with logical storage units. As used by NetBackup, the term storage unit refers to a logical entity that includes one or more physical storage devices that are of a specific type and media density and attach to a specific host. There are three categories of storage units: • Directly attached standalone or robotic media storage units tha

  • www.veritas.com Page 1 VERITAS NetBackup Release 3.4 Technical Overview Table of Contents Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Key Features of VERITAS NetBackup �

  • VERITAS NetBackup, Appendix C Client Backup Coverage Utility The client coverage backup utility can produce three reports that gather various types of information about the clients being backed up by the server. The reports are: • System Backup Coverage Report • Class Hardware/OS Report • Hosts Report The File System Backup Coverage Report detects file systems that are not backed up by any class and file systems that are backed up by more than one class. Currently, this report is only supported for UNIX clients. The Class Hardware/OS Report displays hardware and operating system information for clients. The H

  • menu interface: the administrator or client-based user interface provided by VERITAS NetBackup for individuals who do not have GUI capabilities (see “graphical user interface,” “command line interface”). multiple volume device: a physical storage device not requiring manual intervention to change volumes because of built-in robotic controls (see “single volume device

  • VERITAS NetBackup, As also shown in Figure 2, devices configured on the media servers in the storage domain become additional network storage units for backup and restore operations. When clients have large amounts of data, making them media servers is also an effective way of reducing their backup time and lowering network traffic. The actual location of the backup images in a NetBackup storage domain is totally transparent to NetBackup administrators and users. The Media Manager component of VERITAS NetBackup resides on each NetBackup server and manages secondary storage media and the peripheral devices on those servers. NetBac

  • VERITAS NetBackup, • Raw database backups (database files or partitions) are configured and executed in the same manner as file backups. The performance resulting from backing up cold databases is generally greater than that achieved when backing up through the UNIX file system or through the data extraction utilities supplied by RDBMS vendors. • Warm database backup is similar to raw database or file backup method described above, except that the database is placed in “hot backup” mode via the capability of NetBackup to preprocess scripts prior to the raw partition or database file backup. After the backup is completed, the database is returned to normal

  • VERITAS NetBackup, www.veritas.com Page 21 VERITAS NetBackup Release 3.4 Technical Overview Figure 15: Backup data flow. In all cases, the client generates the backup image as a data stream using TCP/IP sockets and sends it to either the VERITAS NetBackup master or media server. The receiving server directs the data stream to the appropriate attached storage device. While the backup operation is progressing, the client directs another data stream to the master server which catalogs information about the files contained in the backup image and is stored in the NetBackup image catalog. The image catalog and other VERITAS NetBackup databases are backed up in a separate operation,

  • VERITAS NetBackup, • Retention Level — indicates a specific time period for keeping backup or archive copies of files before deleting them from secondary storage. The default retention periods range from one week (Level 0) to infinite (Level 9); however, the retention periods may be set to any specific value by the NetBackup administrator. The retention level also denotes a schedule’s priority within the class, with Level 9 schedules having the highest priority and Level 0 the lowest. • Storage Unit — specifies the storage device to receive the file backups. This option overrides the storage

  • VERITAS NetBackup, Libraries attached to a “NDMP media server” (direct-attached to the NAS NDMP host) can also be shared between multiple NDMP NAS servers and one or more NetBackup servers, as shown in Figure 28 below. Drive sharing is not supported for NDMP NAS hosts. As with the NetBackup server case above, the library robotics may be controlled by either the NetBackup server or one of the NAS NDMP hosts. Figure 28: Sharing robotics libraries between NetBackup and NDMP NAS servers. Managing Robot Inventory Managing the contents of robots is a critical task and can be very difficult when a site has a large number of robo

  • VERITAS NetBackup, Continuous Data Availability Features Timely access to critical data is often the difference between the success or failure of a business. Data must be available to users when they need it. In today’s global economy, critical files and databases must often be available 24 hours per day. If access to a critical system is interrupted for any reason, alternative systems must be able to take over the load automatically and transparently. Disaster recovery capabilities must be available so that if the worst happens and and a site is completely disabled, critical data can be restored and available onl

  • VERITAS NetBackup, Multiplexed restores are especially useful in the case of databases. Often database backup performance can be optimized by multiplexing multiple sessions during the backup. However, many online database backup utilities require that if multiple backup sessions were run in parallel, they must be restored in parallel. Therefore, to enable multiplexed database backups, the backup product must support the multiplexed restore capability. Figure 20: Muiltiplexed database restores. Any restore requests of a multiplexed backup image that are submitted inside an administrator-defined time window may

  • VERITAS NetBackup, Library sharing between NetBackup and NDMP Hosts NetBackup can share a tape library between the NetBackup server and one or more NDMP NAS servers, or just between the NDMP NAS servers themselves. For more information, see the “Media Manager Library Sharing” section. EMC Symmetrix Split Mirror Backups VERITAS NetBackup directly backs up EMC Symmetrix disk arrays using the EMC Timefinder API to provide data synchronization and 3rd-mirror break-off. The NetBackup server attaches directly to the EMC Symmetrix array (SCSI or

  • VERITAS NetBackup, Figure 16: Multiplexed backups. Automatic Multi-Streaming Clients A single NetBackup backup class can automatically create multiple simultaneous client backup sessions and dramatically increase the performance of the backup. Parallel backup sessions are initiated based on client system mount points or individual entries (explicit or via wildcards) in the NetBackup class file list. The automatic multi-streaming client feature can be administrator defined to dynamically “auto-discover” newly created folders and partitions on a client. Figure 17: NetBackup automatic multi-streaming client feature. www.veritas.comPage 22 VE

  • VERITAS NetBackup, NetBackup Servers and Clients VERITAS NetBackup includes both client and server software. Server software resides only on the platforms that manage the physical devices used for secondary storage. Client software resides on the individual client workstations containing the data to be backed up (a server can also be a client). In this architecture, client software is responsible for generating the data stream to be backed up and server software directs this data stream to a secondary storage device. NetBackup Centralized Management VERITAS NetBackup DataCenter accommodates multiple servers working together in a backup storage domain, under the admi

  • VERITAS NetBackup, Security Storage management applications have often been characterized as the biggest security loophole in a secure data environment. Once the data leaves the confines of the physical system environment by way of a backup or data migration, the data security policies and procedures often do not follow. NetBackup addresses security concerns in the enterprise storage management environment by providing customers with a wide range of security options. These include authentication, authorization, data encryption, and auditing. Each can be tailored to meet a customer’s specific needs. Data can be encrypted before it is sent across the network and/or before it is s

  • VERITAS WHITE PAPER © Copyright 2000 VERITAS Software Corporation. All rights reserved. VERITAS, VERITAS SOFTWARE, the VERITAS logo, Business Without Interruption, VERITAS, The Data Availability Company, VERITAS Backup Exec, VERITAS NetBackup, VERITAS NetBackup BusinesServer, VERITAS NetBackup FlashBackup, VERITAS Storage Migrator, VERITAS Global Data Manager, VERITAS Cluster Server, and VE

  • VERITAS NetBackup, Figure 6: NetBackup support for SAP R/3 environments. Lotus Notes Backups NetBackup supports online backup of Lotus Notes 4 (Windows NT/2000) and Lotus Notes 5 environments. Lotus Notes 4 environments on Windows NT/2000 can be backed up using standard NetBackup with the Open Transaction Manager. Lotus Notes 5 environments can be backed up online or “Hot” using the NetBackup for Lotus Notes 5 agent which takes advantage of the new Lotus Notes 5 backup API. NetBackup for Lotus Notes 5 provides the following types of backups for Lotus 5 configurations: • Full backup – Online full backups of the common database as well as each users private database area • Incremental backup

  • FlashBackup uses snapshot technology to provide high performance, online “file image” backups of mounted file systems 1 while still allowing restores of individual files and directories. FlashBackup significantly enhances backup performance for file servers, web servers, and internet mail servers that have file systems that contain a large number of small files. Hi

  • VERITAS NetBackup, The administrator can also generate reports that show: • What is physically in a robot? • Discrepancies between what is physically in a robot and what is shown in the volume database. Scratch Pools Media manager enables administrators to configure/enable scratch pools. When applications such as VERITAS NetBackup and Storage Migrator need additional (new) media, they can obtain new media from the scratch pool. Scratch pools can be local to a single storage unit (library), or can be configured a

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