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EMC NetWorker 7.6 管理指南
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更新于2024-07-31
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"Legato Network 7.6管理员手册提供了EMC公司NetWorker 7.6版本的详细管理指南,涵盖了备份和恢复解决方案的相关知识。本手册旨在帮助管理员理解和操作NetWorker系统,确保数据安全与业务连续性。"
在EMC NetWorker 7.6 Administration Guide中,用户将深入了解到以下关键知识点:
1. **EMC NetWorker概述**:NetWorker是EMC公司的一款企业级数据保护解决方案,它提供了一套全面的备份和恢复功能,用于保护组织的重要数据。7.6版本可能包含性能优化、新特性和对旧版的改进。
2. **系统架构**:NetWorker的架构涉及服务器、客户端、存储设备和网络组件。管理员需要理解这些组件如何协同工作,包括数据流路径、管理控制台的使用以及与存储设备的接口。
3. **安装与配置**:安装NetWorker 7.6涉及硬件和软件的要求、安装过程、配置参数设置,以及如何根据组织需求定制系统配置。
4. **备份策略**:NetWorker支持多种备份策略,如全量备份、增量备份和差异备份。管理员需要学习如何规划和实施这些策略,以平衡备份窗口、存储需求和恢复速度。
5. **恢复操作**:手册会详细讲解如何在数据丢失或系统故障时进行数据恢复,包括文件级恢复、系统恢复和灾难恢复方案。
6. **性能监控与优化**:管理员应掌握监控NetWorker系统性能的方法,以便识别潜在问题并进行性能调优。这可能涉及日志分析、资源管理及配置调整。
7. **安全性与权限管理**:NetWorker提供了用户认证、访问控制和加密等功能,以保障数据安全。这部分内容会解释如何设置和管理这些安全特性。
8. **故障排查与维护**:手册会提供常见问题的解决步骤,包括错误代码解析、日志分析和系统维护最佳实践。
9. **许可证管理**:使用、复制和分发EMC软件,包括NetWorker,需要相应的软件许可证。了解许可证管理对于确保合规性至关重要。
10. **产品更新与支持**:EMC可能会发布更新和补丁以增强NetWorker的功能和安全性。管理员需要知道如何获取这些更新,并了解EMC提供的技术支持服务。
"Legato Network 7.6 Administrator"手册是EMC NetWorker 7.6系统管理员的重要参考资料,它详细阐述了系统的各个方面,帮助管理员有效地管理和维护数据保护环境。这份文档不仅介绍了产品的功能,还提供了实用的操作指南和故障排除信息,确保用户能够充分利用EMC NetWorker 7.6提供的功能和服务。
EMC NetWorker Release 7.6 Administration Guide
16
Contents
Graphical display of the VMware environment......................................... 529
Recovering VMware Consolidated Backups..................................................... 531
Performing a file-based recovery on the local host.................................... 531
Performing a file-based recovery using CIFS share................................... 531
Performing a file-based recovery using directed recovery....................... 532
Performing a single step recover of the full virtual machine ................... 532
Chapter 21 NetWorker Server Support for NDMP
Overview of NDMP.............................................................................................. 538
Licensing .......................................................................................................... 538
NDMP connection support............................................................................ 538
Supported NDMP configurations....................................................................... 538
Local backup by using an NDMP tape server ............................................ 539
Backup by using NetWorker storage node support .................................. 540
Three-party backup with NDMP tape server ............................................. 542
Requirements for and limitations of NDMP support ...................................... 543
Requirements for NetWorker software with NDMP support ................. 543
Limitations of the NetWorker software with NDMP support ................. 544
NetWorker storage node support for NDMP clients................................. 546
Vendor-specific information.......................................................................... 547
Configuring the NetWorker server for NDMP operations ............................. 548
Configuring library support for NDMP ...................................................... 548
Configuring an NDMP device resource ...................................................... 552
Configuring an NDMP Client resource....................................................... 553
Additional considerations for NDMP operations...................................... 556
Performing NDMP backups ................................................................................ 557
Tape server support for NDMP client backup ........................................... 557
Performing a local backup by using the NetWorker User program ....... 558
Performing an NDMP backup from the command prompt..................... 558
Performing a three-party backup from the command prompt................ 559
Performing DAR backups.............................................................................. 559
Storage node support for NDMP client backup......................................... 560
Performing NDMP recoveries............................................................................. 561
Storage node support for NDMP client recovery....................................... 562
Performing a save set recovery ..................................................................... 562
Destructive save set recoveries ..................................................................... 563
Performing a directory-level recovery......................................................... 564
Performing a file-by-file recovery................................................................. 565
Performing a directed recovery .................................................................... 566
NDMP cloning....................................................................................................... 569
Cloning between storage nodes.................................................................... 569
Cloning functionality...................................................................................... 569
NDMP index and bootstrap cloning ............................................................ 569
NDMP Path-to-Tape cloning for regular save sets .................................... 570
Ancillary product information............................................................................ 572
Filers that act as data servers......................................................................... 572
Network Appliance ........................................................................................ 573
SnapImage software ....................................................................................... 584
Filers that act as tape servers only................................................................ 584
Chapter 22 SNMP Module
SNMP traps ............................................................................................................ 590
Configuring NetWorker SNMP notifications.................................................... 590
EMC NetWorker Release 7.6 Administration Guide
17
Contents
Command line options for nsrtrap .............................................................. 590
Modifying preconfigured NetWorker SNMP notification ....................... 591
Creating NetWorker SNMP notifications ................................................... 591
Configuring SNMP management software ...................................................... 592
NetWorker SMI Network Management Private Enterprise Code .......... 592
Receiving traps in the SNMP network management software................ 592
Chapter 23 Support for Microsoft Automated System Recovery
Microsoft Automated System Recovery............................................................ 594
Microsoft ASR documentation ..................................................................... 594
NetWorker support for ASR................................................................................ 594
NetWorker ASR save set ............................................................................... 594
Usage overview .............................................................................................. 595
Network connection names .......................................................................... 595
ASR Limitations and special considerations .................................................... 595
FAT16 partitions are not supported ............................................................ 596
OEM recovery CDs are not supported........................................................ 596
Vendor-specific drivers must be installed after Windows installation .. 596
ASR backup ........................................................................................................... 596
How to include the ASR or VSS ASR DISK save set in a scheduled backup
597
How to include ASR or VSS ASR DISK save set in a manual backup.... 597
Creating an ASR disk ........................................................................................... 598
Prerequisites .................................................................................................... 598
Create an ASR disk locally ............................................................................ 598
Creating an ASR disk by using directed recovery..................................... 599
Posting ASR disk creation task..................................................................... 600
Using the ASR disk to recover a NetWorker client.......................................... 600
Requirements for an ASR recovery.............................................................. 600
Performing an ASR recovery ........................................................................ 601
Components that require special handling after an ASR recovery......... 602
Verifying the NetWorker client recovery.................................................... 603
Chapter 24 Volume Shadow Copy Service
Overview of VSS ................................................................................................... 606
VSS and the backup process................................................................................ 606
The importance of writers............................................................................. 608
Controlling VSS from NetWorker software ...................................................... 608
Controlling VSS from the Administration window .................................. 609
Controlling VSS from the NetWorker client............................................... 610
Control VSS from the command-prompt.................................................... 611
Globally disabling VSS .................................................................................. 611
VSS commands ............................................................................................... 612
Handling MSDE, SQL Server, and Microsoft Exchange databases ........ 612
Authoritative restores of the Active Directory Application Mode (ADAM)
and DFS Replication writers ......................................................................... 613
Chapter 25 DiskXtender Data Manager File System Support
Supported configurations.................................................................................... 616
Path information............................................................................................. 616
Permissions...................................................................................................... 616
DiskXtender Data Manager file system overview ........................................... 616
File data in a DXDM file system................................................................... 616
EMC NetWorker Release 7.6 Administration Guide
18
Contents
Backup of DXDM file systems............................................................................. 618
Aborted backups ............................................................................................. 619
Recovery of DXDM file systems ......................................................................... 620
Initiating a recovery........................................................................................ 620
Restoring deleted files and previous file versions ..................................... 621
File system synchronization.......................................................................... 621
Automatic synchronization ........................................................................... 622
Manually synchronizing a file....................................................................... 622
Chapter 26 Support for Avamar Deduplication
NetWorker deduplication node .......................................................................... 624
Deduplication backups......................................................................................... 624
Replication of deduplication backups ......................................................... 625
Schedules for deduplication clients.............................................................. 625
Backup levels for deduplication clients....................................................... 625
Retention policies............................................................................................ 626
Directives.......................................................................................................... 626
Creating a deduplication node and a replication node ................................... 626
Avamar setup .................................................................................................. 627
NetWorker setup............................................................................................. 628
Cloning and deduplication .................................................................................. 632
Backup-to-tape for deduplication clients........................................................... 632
Recovering deduplicated data............................................................................. 633
Viewing deduplication events in NMC ............................................................. 633
Disaster recovery................................................................................................... 634
Deduplication save sets........................................................................................ 634
Deleting deduplication save sets .................................................................. 635
Querying deduplication save sets using mminfo ...................................... 635
Refreshing deduplication node information..................................................... 636
Tips for troubleshooting deduplication nodes.................................................. 636
Chapter 27 Support for HomeBase
Introduction to HomeBase Support (Bare Metal Recovery) ........................... 638
BMR Recovery................................................................................................. 638
NetWorker BMR HomeBase Server ............................................................. 638
Installation Notes ............................................................................................ 638
BMR backups ......................................................................................................... 638
Configuring a client for BMR support ......................................................... 639
Recovering with BMR........................................................................................... 640
Excluding files for BMR recovery................................................................. 641
Chapter 28 Licensing
Product licenses..................................................................................................... 644
Base enabler ..................................................................................................... 644
Evaluating the NetWorker software................................................................... 644
How to apply an evaluation enabler code .................................................. 644
Deleting an enabler code................................................................................ 645
Evaluation enabler alert ................................................................................. 645
Permanently licensing the NetWorker software............................................... 645
NetWorker License Manager............................................................................... 646
Entering an enabler code ............................................................................... 646
Deleting an enabler code................................................................................ 646
Entering an authorization code..................................................................... 646
EMC NetWorker Release 7.6 Administration Guide
19
Contents
Changing the License Manager server........................................................ 647
Licensing NetWorker software components..................................................... 647
Archiving licensing ........................................................................................ 647
Bare Metal Recovery (BMR) licensing ......................................................... 648
Client connection licenses ............................................................................. 648
Cluster licensing ............................................................................................. 648
DDS licensing.................................................................................................. 649
HomeBase server/agent................................................................................ 649
NDMP licensing.............................................................................................. 649
NetWorker Modules ...................................................................................... 650
NetWorker cloud backup option ................................................................. 650
NetWorker storage node licensing .............................................................. 650
Virtual environments simplified licensing ................................................. 650
Virtual Edition Client Connection license .................................................. 651
License Conformance Summary......................................................................... 652
How to obtain NetWorker license information................................................ 654
Querying the local server .................................................................................... 654
Chapter 29 Troubleshooting
Before contacting technical support................................................................... 658
Determining the version of NetWorker software running on a client ... 658
Displaying diagnostic mode attributes ....................................................... 659
Viewing log files.................................................................................................... 659
Rendering log files in the current locale at runtime.................................. 659
How to view log files with the nsr_render_log program ......................... 660
Viewing log files from remote host machines............................................ 661
Log files from previous releases of NetWorker ......................................... 661
Filtering log file information displayed by nsr_render_log..................... 661
Locating savegroup job logs ......................................................................... 662
NetWorker functionality issues .......................................................................... 663
Backup and recovery...................................................................................... 663
Unsynchronized client clock errors ............................................................. 665
Backups fail to start when daylight savings time change occurs ............ 665
Clone ID timestamp does not reflect the time the cone was created...... 665
Backups fail to stop ........................................................................................ 666
Memory usage when browsing large save sets.......................................... 666
Memory usage and nsrjobd .......................................................................... 666
Media position errors encountered when auto media verify is enabled 666
PACKET RECEIVE BUFFER and NO ECB counters increase ................. 667
The scanner program marks a volume read-only...................................... 667
The scanner program requests an entry for record size ........................... 667
Limitations for groups containing a bootstrap........................................... 667
Index recovery to a different location fails ................................................. 667
Illegal characters in configurations.............................................................. 668
Error backing up large number of clients ................................................... 668
Hostname aliases ............................................................................................ 669
Directory pathname restrictions................................................................... 669
Failed recover operation directly after new installation........................... 669
Recovering files from an interrupted backup ............................................ 669
Backup of a new client defaults to level full............................................... 670
Non-full backup of Solaris files with modified extended attributes....... 670
Renamed clients cannot recover old backups ............................................ 670
Client file index errors ................................................................................... 670
Cannot use the Console interface to stop the savegrp command ........... 671
EMC NetWorker Release 7.6 Administration Guide
20
Contents
Aborting a recovery........................................................................................ 671
RPC error.......................................................................................................... 672
Error message when relocating data............................................................ 672
Desktop heap size limitation......................................................................... 672
The All save set and duplicate drive serial numbers................................. 673
Disk label errors .............................................................................................. 673
Cannot print bootstrap information............................................................. 673
Server index not forced .................................................................................. 673
Copy violation ................................................................................................. 673
Xview errors..................................................................................................... 674
Converting sparse files to fully allocated files............................................ 674
Backing up large sparse files ......................................................................... 675
The mminfo -N command is case-sensitive regarding save set names... 675
Devices and autochangers ................................................................................... 676
Additional attributes in the Autochanger resource ................................... 677
Maintenance commands ................................................................................ 677
Autodetected SCSI jukebox option causes server to stop responding.... 677
Autochanger inventory problems ................................................................ 677
Destination component full messages ......................................................... 678
Tapes do not fill to capacity........................................................................... 678
Tapes get stuck in drive when labelling on Linux Red Hat platform ..... 679
Increasing the value of Save Mount Time-out for label operations ........ 679
Server cannot access autochanger control port .......................................... 679
Nonrewinding device requirement.............................................................. 681
Scanner command behaves differently with adv_file type device.......... 681
Sleep times required for TZ89 drive types .................................................. 681
Managing optical drives with Solaris 9 ....................................................... 681
Message displayed when CDI enabled on NDMP or disk FTD .............. 682
Verifying firmware for switches and routers ............................................. 682
Commands issued with nsrjb on a multi-NIC host fail............................. 683
SCSI reserve/release with dynamic drive sharing .................................... 683
Device ordering issues ................................................................................... 684
NetWorker locale and code set support............................................................. 684
Issues with fonts when using X servers on Linux...................................... 684
Resource database notes....................................................................................... 684
Viewing resources........................................................................................... 685
Repairing resource database corruption...................................................... 685
Network and server communication errors ...................................................... 685
General issues.................................................................................................. 686
Firewall issues ................................................................................................. 687
UNIX communication issues............................................................................... 688
Troubleshoot IP errors.................................................................................... 688
Binding to server errors ................................................................................. 691
Saving remote file systems ............................................................................ 691
Microsoft Windows communication issues ................................................ 692
NetWorker archiving and retrieval..................................................................... 694
Remote archive request from server fails.................................................... 694
Multiple save sets appear as a single archive save set .............................. 695
Wrong archive pool is selected ..................................................................... 695
Second archive request does not execute .................................................... 695
The nsrarchive program does not start immediately ................................ 695
Archive request succeeds but generates error when nsrexecd
is not running .................................................................................................. 695
Empty annotations in retrieve list ................................................................ 695
Storage nodes......................................................................................................... 696
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