Avamar system overview.................................................................................................................................................... 21
User interfaces...............................................................................................................................................................25
Data Domain system support.......................................................................................................................................26
Data deduplication............................................................................................................................................................... 27
Security and networking.....................................................................................................................................................27
IPv4 and IPv6 support...................................................................................................................................................28
SSH MAC algorithms.................................................................................................................................................... 28
Overview of Avamar Administrator...................................................................................................................................29
Setting a session time-out for Avamar Administrator.................................................................................................... 32
System Information panel.............................................................................................................................................34
Avamar Administrator user interface elements............................................................................................................... 38
Status bar....................................................................................................................................................................... 38
Navigation tree features................................................................................................................................................41
Overview of Avamar clients............................................................................................................................................... 42
Creating a domain..........................................................................................................................................................43
Deleting a domain.......................................................................................................................................................... 44
Registering a client in Avamar Administrator.............................................................................................................45
Activating a client................................................................................................................................................................ 47
Re-activating a client.....................................................................................................................................................47
Enabling and disabling a client........................................................................................................................................... 50
Moving a client to a new domain....................................................................................................................................... 51
Retiring a client.....................................................................................................................................................................51
Deleting a client.................................................................................................................................................................... 51
Chapter 4: User Management and Authentication............................................................................ 53
Overview of Avamar user accounts..................................................................................................................................53
User authentication.............................................................................................................................................................54
How Avamar authenticates users and assigns roles.................................................................................................54
Directory service authentication....................................................................................................................................... 54
LDAP directory service authentication.......................................................................................................................55
OpenLDAP directory service authentication..............................................................................................................60
Adding an NIS directory service.................................................................................................................................. 65
Error messages during directory service configuration............................................................................................65
Adding an LDAP map.................................................................................................................................................... 66
Editing the role for an LDAP map................................................................................................................................ 67
Deleting an LDAP map.................................................................................................................................................. 67
Editing the time-out value for directory service processes..................................................................................... 67
Enabling backward compatibility with Enterprise Authentication................................................................................. 68
User roles........................................................................................................................................................................70
Adding a user to a client or domain....................................................................................................................................71
Editing user information......................................................................................................................................................72
Deleting a user......................................................................................................................................................................72
Performing an on-demand backup of a client............................................................................................................73
Performing an on-demand group backup...................................................................................................................74
Finding a completed backup to manage.....................................................................................................................96
Validating a backup........................................................................................................................................................96
Changing the expiration date for a backup................................................................................................................ 97
Changing the retention type for a backup................................................................................................................. 98
Deleting a backup.......................................................................................................................................................... 99
Chapter 6: Restore and Recovery..................................................................................................100
Restoring data from a backup..........................................................................................................................................100
Finding a backup.......................................................................................................................................................... 100
Restoring to the original location............................................................................................................................... 102
Restoring to a different location................................................................................................................................ 102
Restoring to multiple locations................................................................................................................................... 103
Windows client system recovery..................................................................................................................................... 104
Red Hat and CentOS Linux system recovery................................................................................................................ 105
Reconstructing the partition table.............................................................................................................................105
Preparing the target recovery client......................................................................................................................... 106
Performing system recovery of a Red Hat or CentOS Linux client...................................................................... 106
Troubleshooting system recovery of a Red Hat or CentOS Linux client..............................................................109
SUSE Linux system recovery........................................................................................................................................... 109
Reconstructing the partition table.............................................................................................................................109
Preparing the target recovery client.......................................................................................................................... 110
Performing system recovery of a SUSE Linux client................................................................................................ 111
Troubleshooting system recovery of a SUSE Linux client.......................................................................................113
Oracle Solaris system recovery.........................................................................................................................................114
Preparing for Oracle Solaris system recovery...........................................................................................................114
Performing system recovery of an Oracle Solaris client..........................................................................................115
Chapter 7: Server Administration...................................................................................................117
Server shutdown and restart............................................................................................................................................ 117
Administering the Avamar subsystems...................................................................................................................... 117
Powering off or restarting the server........................................................................................................................ 119
Suspending and resuming server activities..................................................................................................................... 121
Suspending and resuming backups and restores......................................................................................................121
Suspending and resuming scheduled operations......................................................................................................121
Suspending and resuming maintenance activities.................................................................................................... 121
Viewing a detailed client session log.......................................................................................................................... 122
Creating a Zip file for Avamar Support......................................................................................................................123
Canceling a client session............................................................................................................................................123
Resetting a client..........................................................................................................................................................123
Managing client agents and plug-ins............................................................................................................................... 124
Adding a build record................................................................................................................................................... 124
Editing version or build records.................................................................................................................................. 124
Deleting a build record.................................................................................................................................................125
Disabling all client initiated activations.......................................................................................................................125
Disabling all client initiated backups........................................................................................................................... 125
Backup and maintenance windows................................................................................................................................. 125
Editing the backup and maintenance windows........................................................................................................ 127
Creating a checkpoint..................................................................................................................................................127
Deleting a checkpoint.................................................................................................................................................. 128
Rolling back to a checkpoint.......................................................................................................................................128
Clearing a data integrity alert......................................................................................................................................129
Activating the Avamar software and installing a server license...................................................................................129
Activating the Avamar software................................................................................................................................ 129
Installing and activating a license............................................................................................................................... 130
Information on the Services Administration tab........................................................................................................131
Changing server passwords and OpenSSH keys............................................................................................................131
Backing up MCS data..................................................................................................................................................133
Reverting to the default MCS configuration settings............................................................................................. 134
Using network address translation (NAT)...................................................................................................................... 135
Solutions for common NAT problems....................................................................................................................... 135
Editing network settings for a single-node server.........................................................................................................136
Adding a custom security notification for web browser logins.................................................................................... 136
Viewing and editing server contact information............................................................................................................ 136
Chapter 8: Server Monitoring....................................................................................................... 138
Recommended daily server monitoring...........................................................................................................................138
Monitoring server status and statistics...........................................................................................................................140
Server Monitor tab....................................................................................................................................................... 141
Server Management tab............................................................................................................................................. 143
Viewing events in the Event Monitor........................................................................................................................ 157
Viewing the event catalog.......................................................................................................................................... 158
Acknowledging system events...................................................................................................................................158
Server monitoring with syslog..........................................................................................................................................158
Configuring local syslog...............................................................................................................................................159
Server monitoring with SNMP......................................................................................................................................... 163
Configuring server monitoring with SNMP...............................................................................................................163
Viewing Avamar server log files....................................................................................................................................... 165
Viewing the Audit Log................................................................................................................................................. 166
Automatic notifications to Avamar Support...................................................................................................................166
Verifying system integrity..................................................................................................................................................172
Capacity limits and thresholds..........................................................................................................................................173
Overview of Avamar replication.......................................................................................................................................176
Types of replication......................................................................................................................................................176
Location of replicas on a destination Avamar system..............................................................................................177
Replicas at Source........................................................................................................................................................178
Retention of replicas....................................................................................................................................................180
Replication with Data Domain systems..................................................................................................................... 180
Enabling Replicas at Source.............................................................................................................................................. 181
Performing on-demand replication from the Replication window......................................................................... 187
Performing on-demand replication from the Policy window.................................................................................. 188
Performing command line replication.............................................................................................................................. 188
Monitoring replication in Avamar Administrator....................................................................................................... 197
Canceling a replication task.............................................................................................................................................. 197
Restoring by using a replica on a destination system....................................................................................................198
MCS configuration parameters to support Replicas at Source...................................................................................199
Changing the configuration of Replicas at Source................................................................................................. 200
Chapter 11: Server Updates and Hotfixes....................................................................................... 201
Overview of the Avamar server software update process.......................................................................................... 201
AvInstaller and Avamar Installation Manager...........................................................................................................202
Installing and configuring the Avamar Downloader Service.........................................................................................203
Contents
7
Configuring the Avamar Downloader Service..........................................................................................................203
Downloading new packages from the EMC repository................................................................................................204
Downloading and installing packages on the Avamar server.......................................................................................204
Viewing a list of installation packages on the Avamar server......................................................................................205
Uploading installation packages to the Avamar server...........................................................................................205
Deleting packages from the Avamar server.................................................................................................................. 206
Viewing the history of installations..................................................................................................................................207
Installation history information...................................................................................................................................207
Using the legacy Avamar Downloader Service..............................................................................................................208
Legacy Avamar Downloader Service installation requirements.............................................................................208
Downloading the legacy Avamar Downloader Service software.......................................................................... 208
Installing the legacy Avamar Downloader Service software..................................................................................209
Configuring the legacy Avamar Downloader Service.............................................................................................. 210
Updating the legacy Avamar Downloader Service software...................................................................................211
Uninstalling the legacy Avamar Downloader Service............................................................................................... 211
Downloading new packages from the EMC repository............................................................................................211
Viewing a list of packages available for download................................................................................................... 212
Verifying connectivity with the EMC repository...................................................................................................... 212
Monitoring Avamar Downloader Service status.......................................................................................................212
Stopping and starting the Avamar Downloader Service monitor...........................................................................213
Troubleshooting Avamar Downloader Service issues....................................................................................................213
Apache web server authentication............................................................................................................................ 215
Editing the session time-out period........................................................................................................................... 215
Increasing the JavaScript time-out period................................................................................................................216
Global tools......................................................................................................................................................................... 218
Adding an Avamar server............................................................................................................................................ 218
Removing an Avamar server.......................................................................................................................................219
Changing the settings for an Avamar server............................................................................................................219
Selecting a server........................................................................................................................................................220
Setting the entries per page limit.............................................................................................................................. 225
Server Summary..........................................................................................................................................................226
Client and server tools................................................................................................................................................ 229
Adding clients to a group............................................................................................................................................244
Removing clients from a group..................................................................................................................................244
Viewing the dataset policy of a group...................................................................................................................... 245
Viewing the retention policy of a group....................................................................................................................245
Viewing the schedule policy of a group....................................................................................................................245
Canceling a task...........................................................................................................................................................246
Viewing the client log after upgrading an Avamar client........................................................................................ 247
Clearing all log entries in a section.............................................................................................................................247
Overview of Avamar Desktop/Laptop........................................................................................................................... 249
Requirements for Avamar Desktop/Laptop.................................................................................................................. 250
Web browser requirements........................................................................................................................................ 251
Supported systems management tools....................................................................................................................252
Push installation on Windows computers.................................................................................................................253
Push installation on Macintosh computers.............................................................................................................. 253
Local client installation................................................................................................................................................ 254
Avamar Desktop/Laptop user authentication...............................................................................................................255
Avamar Desktop/Laptop user interfaces.......................................................................................................................258
Web UI.......................................................................................................................................................................... 259
Backup with Avamar Desktop/Laptop...........................................................................................................................263
Add data option........................................................................................................................................................... 264
Changing the retention policy for on-demand backups......................................................................................... 266
Restore with Avamar Desktop/Laptop.......................................................................................................................... 267
Finding data to restore................................................................................................................................................267
Restore of replicated backups................................................................................................................................... 270
Client backup and restore activity history......................................................................................................................270
Chapter 14: Data Domain System Integration................................................................................. 273
Overview of Data Domain system integration...............................................................................................................273
Integration of Avamar with Data Domain................................................................................................................. 273
File system backups on a Data Domain system.......................................................................................................273
Application backups on a Data Domain system....................................................................................................... 274
Data Domain Cloud Disaster Recovery.....................................................................................................................274
Checkpoints on a Data Domain system....................................................................................................................275
Data Domain system streams.................................................................................................................................... 275
Replication with Data Domain systems.....................................................................................................................275
Monitoring and reporting Data Domain system status...........................................................................................276
Security with Data Domain system integration....................................................................................................... 276
Data migration to an attached Data Domain system..............................................................................................276
Preparing to add a Data Domain system........................................................................................................................ 277
System requirements for Data Domain system integration................................................................................... 277
Creating a DD Boost user account............................................................................................................................279
Adding a Data Domain system.........................................................................................................................................279
Chapter 15: Backup and Recovery using the AUI............................................................................. 281
Perform an on-demand backup by using AUI ................................................................................................................281
Restore a backup client by using AUI............................................................................................................................. 282
Appendix A: Command Shell Server Logins.................................................................................... 284
User accounts....................................................................................................................................................................284
Switching user IDs.............................................................................................................................................................284
Using sudo..........................................................................................................................................................................285
Prefixing commands with sudo................................................................................................................................. 285
How to set plug-in options...............................................................................................................................................286
1. Avamar server nodes, stripes, and objects.......................................................................................................... 21
2. Avamar server functional block diagram............................................................................................................. 23
3. Avamar client agent and plug-ins........................................................................................................................... 24
4. Data deduplication......................................................................................................................................................... 27
6. Avamar Administrator status bar............................................................................................................................38
7. Navigation tree features..............................................................................................................................................41
9. Users in Avamardomains............................................................................................................................................ 53
10. Schedule start time, end time, and duration....................................................................................................79
11. Default backup and maintenance windows..................................................................................................... 126
12. Multi-node server configuration with NAT..................................................................................................... 135
7. System State fields on the Avamar Administrator dashboard.................................................................. 35
8. Backup job fields in the Avamar Administrator dashboard......................................................................... 36
9. System alerts in the Critical Events panel.......................................................................................................... 38
10. Launcher shortcut icons on the status bar...................................................................................................... 38
11. Scheduler and backup dispatching status messages................................................................................... 39
12. Status messages for unacknowledged events............................................................................................... 39
13. Operational status messages for Avamaror Data Domain.........................................................................39
14. Attributes for each entry in a clients definition file....................................................................................... 46
15. Client properties displayed by Avamar Administrator................................................................................. 50
16. Avamar user account information........................................................................................................................ 53
17. Supported directory service types....................................................................................................................... 55
18. Required Key Distribution Center ports.............................................................................................................56
19. Parameter requirements for LDAP base functionality................................................................................ 59
20. Additional parameter for LDAP base functionality ......................................................................................59
21. OpenLDAP directory service parameters......................................................................................................... 63
22. Error messages during directory service configuration'............................................................................ 65
25. User roles.........................................................................................................................................................................71
12Tables
26. Directories excluded from Default Dataset backups ................................................................................. 76
27. Directories excluded from UNIX Dataset backups ......................................................................................76
28. Directories excluded from Windows Dataset backups ............................................................................. 76
31. Settings for each type of schedule.......................................................................................................................81
43. Solutions for common NAT problems.............................................................................................................. 136
44. Read-only fields on the View/Edit Contact Information dialog box................................................... 136
45. Editable fields on the View/Edit Contact Information dialog box........................................................137
46. System monitoring tools and tasks....................................................................................................................138
47. Session details available in the Activity Monitor .........................................................................................139
48. Client details available in the Activity Monitor..............................................................................................139
49. Policy details available in the Activity Monitor..............................................................................................139
50. Node details on the Avamar tab of the Server Monitor........................................................................... 141
51. CPU details on the Avamar tab of the Server Monitor..............................................................................141
52. Network details on the Avamar tab of the Server Monitor.................................................................... 141
Tables
13
53. Disk details on the Avamar tab of the Server Monitor..............................................................................141
54. Node details on the Data Domain tab of the Server Monitor................................................................142
55. CPU details on the Data Domain tab of the Server Monitor.................................................................142
56. Disk (KB/S) details on the Data Domain tab of the Server Monitor................................................. 142
57. Network (KB/S) details on the Data Domain tab of the Server Monitor........................................ 142
58. Data display based on selections on the Server Management tab.....................................................143
59. Bytes Protected Summary properties on the Server Management tab.......................................... 143
60. Server Details on the Server Management tab........................................................................................... 144
61. Maintenance Activities Details on the Server Management tab...........................................................144
62. Garbage Collection Details on the Server Management tab................................................................. 145
63. Module properties on the Server Management tab .................................................................................145
64. Status indicators on the Node Information part of Server Management........................................146
65. Server details on the Node Information part of Server Management.............................................. 146
66. OS details on the Node Information part of Server Management...................................................... 147
67. Hardware details on the Node Information part of Server Management........................................ 147
68. Status indicators on the Partition Information part of Server Management................................. 148
69. Server Details on the Node Information part of Server Management..............................................148
70. Data Domain system properties on the Server Management tab.......................................................149
72. Example of a batch email notification message........................................................................................... 152
73. Mappings of syslog fields to Avamar event data........................................................................................ 159
74. Locations for the Avamar MIB definition file.................................................................................................163
75. Capacity limits and thresholds ............................................................................................................................ 173
76. Capacity settings in mcserver.xml......................................................................................................................174
14
77. Replicas at Source features available through the source Avamar server.......................................178
78. Descriptions of the integration of Replicas at Source into Avamar tasks........................................179
79. Replication configurations for Avamar replication using DD Boost.....................................................180
Tables
80. Account options for the avrepl command......................................................................................................188
81. Logging options for the avrepl command........................................................................................................189
82. Replication options for the avrepl command................................................................................................ 190
83. Avamar-only advanced options for the avrepl command....................................................................... 192
85. Required options for the avrepl command.....................................................................................................196
86. MCS configuration parameters to support Replicas at Source............................................................199
87. Information on the Repository tab.................................................................................................................... 206
88. Information on the History tab............................................................................................................................207
89. Details on the History tab......................................................................................................................................207
90. Installation requirements for the legacy Avamar Downloader Service.............................................208
91. Avamar Downloader Service monitor status messages .......................................................................... 212
93. Characters not allowed in search strings........................................................................................................221
94. Columns used in the Server Summary section............................................................................................226
95. Server information on the Server panel......................................................................................................... 228
96. Settings on the Advanced tab of Client Details.......................................................................................... 232
97. Relationship states during client activation................................................................................................... 237
99. Task types on the Queues page.........................................................................................................................246
100. Task types on the Logs page.............................................................................................................................246
114. Available client logs...................................................................................................................................................271
115. Paths to logs on Windows computers ...........................................................................................................272
116. Paths to logs on Linux and Mac computers ............................................................................................... 272
117. Replication configurations for Avamar replication using DD Boost................................................... 275
118. Data Domain system requirements.................................................................................................................. 277
As part of an effort to improve the product lines, revisions of the software and hardware are periodically released. Therefore, some
functions that are described in this document might not be supported by all versions of the software or hardware currently in use. The
product release notes provide the most up-to-date information on product features.
Contact the technical support professional when a product does not function correctly or does not function as described in this
document.
NOTE: This document was accurate at publication time. To find the latest version of this document, go to Online
Support (https://www.dell.com/support).
Purpose
This guide describes how to configure, administer, monitor, and maintain the Avamar system.
Audience
The information in this guide is primarily intended for system administrators who are responsible for maintaining servers and clients on a
network, as well as operators who monitor daily backups and storage devices.
Revision history
The following table presents the revision history of this document.
Table 1. Revision history
RevisionDateDescription
04June, 2020Updated the Plug-ins section.
03January, 2020Added references to Azure and vCenter to Data Domain Cloud Disaster
Recovery.
02December, 2018Updates to support Avamar 18.1
01July, 2018GA release of Avamar 18.1
Related documentation
The following publications provide additional information:
•Avamar Compatibility and Interoperability Matrix
•Avamar Release Notes
•Avamar Operational Best Practices Guide
•Avamar and Data Domain System Integration Guide
•Avamar Reports Guide
•All Avamar client and plug-in user guides
Typographical conventions
These type style conventions are used in this document.
18Preface
Table 2. Typographical conventions
BoldUsed for names of interface elements, such as names of windows, dialog boxes, buttons, fields, tab
names, key names, and menu paths (what the user specifically selects or clicks)
ItalicUsed for full titles of publications that are referenced in text
Monospace
Monospace italicUsed for variables
Monospace bold
[ ]Square brackets enclose optional values
|Vertical bar indicates alternate selections - the bar means "or"
{ }Braces enclose content that the user must specify, such as x or y or z
...Ellipses indicate nonessential information that is omitted from the example
Used for:
•System code
•System output, such as an error message or script
•Pathnames, filenames, prompts, and syntax
•Commands and options
Used for user input
Where to get help
The Avamar support page provides access to licensing information, product documentation, advisories, and downloads, as well as how-to
and troubleshooting information. This information may resolve a product issue before contacting Customer Support.
To access the Avamar support page:
1. Go to https://www.dell.com/support.
2. Type a product name in the Find a Product by Name box.
3. Select the product from the list that appears.
4. Click the arrow next to the Find a Product by Name box.
5. (Optional) Add the product to the My Products list by clicking Add to My Saved Products in the upper right corner of the
Support by Product page.
Documentation
The Avamar product documentation provides a comprehensive set of feature overview, operational task, and technical reference
information. To supplement the information in product administration and user guides, review the following documents:
•Release notes provide an overview of new features and known limitations for a release.
•Technical notes provide technical details about specific product features, including step-by-step tasks, where necessary.
•White papers provide an in-depth technical perspective of a product or products as applied to critical business issues or requirements.
Knowledgebase
The Knowledgebase contains applicable solutions that you can search for either by solution number (for example, esgxxxxxx) or by
keyword.
To search the Knowledgebase:
1. Go to https://www.dell.com/support.
2. Under the Support tab, click Knowledge Base.
3. Type either the solution number or keywords in the search box. Optionally, you can limit the search to specific products by typing a
product name in the search box and then selecting the product from the list that appears.
Online communities
Go to Community Network at https://www.dell.com/community for peer contacts, conversations, and content on product support and
solutions. Interactively engage online with customers, partners, and certified professionals for all products.
Preface
19
Live chat
To engage Customer Support by using live interactive chat, click Join Live Chat on the Service Center panel of the Avamar support
page.
Service Requests
For in-depth help from Customer Support, submit a service request by clicking Create Service Requests on the Service Center panel
of the Avamar support page.
NOTE: To open a service request, you must have a valid support agreement. Contact a sales representative for details
about obtaining a valid support agreement or with questions about an account.
To review an open service request, click the Service Center link on the Service Center panel, and then click View and manage
service requests.
Enhancing support
It is recommended to enable ConnectEMC and Email Home on all Avamar systems:
•ConnectEMC automatically generates service requests for high priority events.
•Email Home sends configuration, capacity, and general system information to Customer Support.
Comments and suggestions
Comments and suggestions help to continue to improve the accuracy, organization, and overall quality of the user publications. Send
comments and suggestions about this document to DPAD.Doc.Feedback@emc.com.
Please include the following information:
•Product name and version
•Document name, part number, and revision (for example, 01)
•Page numbers
•Other details to help address documentation issues
20
Preface
1
Introduction
Topics:
•Avamar system overview
•Data deduplication
•Security and networking
Avamar system overview
An Avamar system is a client/server network backup and restore solution.
An Avamar system consists of one or more Avamar servers and the network servers or desktop clients that back up data to those servers.
The Avamar system provides centralized management through the Avamar Administrator graphical management console software
application.
Avamar server
Avamar is a hard disk based IP network backup and restore solution. Avamar servers use internal hard disk storage. An Avamar server is a
logical grouping of one or more nodes that is used to store and manage client backups.
Hardware manufacturers typically call their equipment servers (for instance, the Dell PowerEdge 2950 server). In the context of an
Avamar system, this equipment is called a node. An Avamar node is a self-contained, rack-mountable, network-addressable computer that
runs Avamar server software on the Linux operating system.
Avamar ensures fault tolerance by managing disk drive space in units of space called stripes.
In the Avamar system, an object is a single instance of deduplicated data. Each Avamar object inherently has a unique ID. Objects are
stored and managed within stripes on the Avamar server.
Figure 1. Avamar server nodes, stripes, and objects
1. Avamar server.
2. Avamar node.
Introduction21
3. Disk drive storage on the node.
4. Stripe on the disk drive.
5. Object on the stripe.
All Avamar servers store client backups and also provide essential processes and services that are required for client access and remote
system administration.
Avamar servers are available in either single-node or scalable multi-node configurations. For the most part, when using Avamar
Administrator management console software, all Avamar servers look and behave the same. The main differences among Avamar server
configurations are the number of nodes and disk drives that are reported in the server monitor.
Documenting specific differences in Avamar server hardware configurations is beyond the scope of this guide. Whenever specific
limitations and best practices for certain configurations are known, they are noted. However, these occasional notes should not be
considered definitive or exhaustive. Consult an Avamar Sales representative or an Avamar reseller for more information about specific
hardware.
Nodes
The primary building block in any Avamar server is a node. Each node is a self-contained, rack-mountable, network-addressable computer
that runs Avamar server software on the Linux operating system.
Nodes can also contain internal storage in the form of hard disk drives. If the node is configured with internal storage (that is, a singlenode server), it is internally mirrored to provide robust fault tolerance.
There are three types of nodes.
Utility node
A utility node is dedicated to scheduling and managing background Avamar server jobs. In scalable multi-node Avamar servers, a single
utility node provides essential internal services for the server, such as:
•Management Console Server (MCS)
•External authentication
•Network Time Protocol (NTP)
•Web access
Because utility nodes are dedicated to running these essential services on multi-node Avamar servers, they cannot be used to store
backups. Single-node Avamar servers combine all of the features and functions of utility and storage nodes on a single node.
Storage nodes
Storage nodes are nodes that store backup data. Multiple storage nodes are configured with multi-node Avamar servers which are based
on performance and capacity requirements. You can add storage nodes to an Avamar server over time to expand performance with no
downtime.
Avamar clients connect directly with Avamar storage nodes. Client connections and data are load that is balanced across storage nodes.
NDMP Accelerator
An NDMP Accelerator node is a specialized node that uses NDMP to provide data protection for certain NAS devices, including the EMC
Celerra® IP storage systems and Network Appliance filers.
Avamar server functional blocks
The major Avamar server functional blocks include the data server, Management Console Server (MCS), and the EM Tomcat server
(EMT). The following figure illustrates the interaction of these components within the server and with other Avamar components.
22
Introduction
Avamar server 01
Management Console Server (MCS)
PostgreSQL
database
Data
Server
Client
registry
Account
management
Scheduler/
dispatcher
Reporting
Events
EM
Tomcat
(EMT)
Avamar
server 02
Avamar
server 03
Avamar
server 04
Avamar
backup client
Avamar Administrator
(management console)
Avamar
Client Manager
Figure 2. Avamar server functional block diagram
Data server
When performing a backup, restore, or validation, Avamar backup clients communicate directly with the data server. All scheduled
backups are initiated by the MCS scheduler.
Management Console Server (MCS)
The Management Console Server (MCS) provides centralized administration (scheduling, monitoring, and management) for the Avamar
server. The MCS also runs the server-side processes that are used by the Avamar Administrator graphical management console.
The following table provides details on the functions that the MCS provides.
Table 3. MCS functions
FunctionDescription
Client registryControls client registration and activation.
Account managementUsed to create and manage domains, clients, users, and groups.
ReportingUsed to create and export system reports. The Avamar Reports
Guide provides more information.
EventsDisplays system events and activities.
Scheduler/dispatcherControls when backup and restore operations occur, or if the
PostgreSQL databaseStores Avamar server data. PostgreSQL is an open architecture
operations can be queued for processing.
database management system. Information in the MCS database is
accessible through any PostgreSQL-compliant ODBC interface.
The MCS database file name is mcdb, and it is on the utility node in
the /usr/local/avamar/var/mc/server_data/postgres directory. The MCS database contents are fully backed
up on the Avamar server and can be restored when the MCS fails.
NOTE: The MCS database is intended for read-only
access for reporting or query purposes. Do not manually
modify any data in mcdb tables unless instructed to do
so by Avamar Support. Directly modifying MCS
Introduction23
Table 3. MCS functions (continued)
Avamar client
Avamar server
File system
plug-in
Application
plug-in
Agent
Management Console Server
(MCS)
FunctionDescription
operational data can cause loss of referential integrity,
which could result in irretrievable loss of data.
EM Tomcat server (EMT)
The Avamar EM Tomcat server (EMT) provides essential services that are required to display, and work with Avamar server information.
The EMT also communicates directly with MCS. This communication is a required part of all Avamar systems.
Avamar clients
Avamar provides client software for various computing platforms. Each client comprises a client agent and one or more plug-ins.
Figure 3. Avamar client agent and plug-ins
Agents
Avamar agents are platform-specific software processes that run on the client and communicate with the Management Console Server
(MCS) and any plug-ins that are installed on that client.
Plug-ins
There are two types of Avamar plug-ins:
•File system plug-ins that are used to browse, back up, and restore files or directories on a specific client file system.
•Application plug-ins that support backup and restore of databases or other special applications.
The following table lists the file system and application plug-ins that Avamar supports.
Table 4. Supported plug-ins
Type of plug-inSupported file systems and applications
File system
Application
•HP-UX
•IBM AIX
•Linux
•Mac OS X
•Microsoft Windows
•Microsoft Windows Volume Shadow Copy Service (VSS)
•Oracle Solaris
•VMware
•IBM DB2
•Lotus Domino
•Microsoft Exchange
24Introduction
Table 4. Supported plug-ins (continued)
Type of plug-inSupported file systems and applications
•Microsoft Hyper-V
•Microsoft Office SharePoint Server (MOSS)
•Microsoft SQL Server
•NDMP for NAS devices, including EMC Celerra IP storage
systems and Network Appliance filers
•Oracle
•SAP with Oracle
•Sybase ASE
See the compatibility guide on Online Support (http://compatibilityguide.emc.com:8080/CompGuideApp) for client compatibility
requirements and supported operating systems and application versions.
The Avamar file system client and the plug-ins that you install on the host must have the same version number.
User interfaces
Several user interfaces are available in the Avamar system to enable management and monitoring.
Avamar Administrator
Avamar Administrator is a graphical management console software application that is used to administer an Avamar system from a
supported Windows client computer.
Avamar Backup & Recovery Manager
Backup & Recovery Manager manages all Avamar systems in the enterprise. Backup & Recovery Manager also has an integrated user
interface to manage the enterprise’s NetWorker servers and Data Domain backup targets.
The following table lists some of the enterprise management capabilities of Backup & Recovery Manager. The table does not include
additional features in Backup & Recovery Manager that are specific to NetWorker servers and to Data Domain backup targets.
Table 5. Avamar system management features of Backup & Recovery Manager
FeatureBackup & Recovery Manager
Software hostVMware vSphere client
At-a-glance dashboardSelect between consolidated and individual status views of Avamar
systems, NetWorker servers, and Data Domain systems
Detailed backup and capacity information for Avamar systemsYes
Monitor backupsYes, through an Activity Monitor screen. Use the Activity Monitor
screen to view backup and replication details, and to start, stop,
and restart tasks.
Replication managementYes
Launch other management applications
•Avamar Administrator
•Avamar Client Manager
•Avamar Installation Manager
•AvInstaller service
Display warnings, errors, and system alertsYes, in a quick-look graphical display and in detailed text. Filter the
view by product, system, and category.
Management reports: select, view, and export
The Backup & Recovery Manager product documentation provides complete details on the user interface.
•Backup
•System
•Configuration
Introduction
25
Avamar Client Manager
Avamar Client Manager is a web-based management application that provides centralized Avamar client administration capabilities for
larger businesses and enterprises. Avamar Client Manager helps with the management of large numbers of Avamar clients.
Avamar Client Manager works with Avamar clients on a supported native operating system and Avamar clients on a supported operating
system running in a VMware virtual machine. Avamar Client Manager cannot work with Avamar clients through virtual center, virtual
machine, or virtual proxy configurations. The Avamar Client Manager UI displays supported Avamar clients and hides all unsupported
clients.
Avamar Desktop/Laptop
Avamar Desktop/Laptop is a version of the Avamar client software that adds enhanced features for enterprise desktop and laptop
computers.
The Avamar Desktop/Laptop features are designed to improve the functionality of Avamar client for Windows and Macintosh desktops
and laptops. Many of the features are also supported on qualifying Linux computers.
Avamar Desktop/Laptop functionality is available through two user interfaces:
•The client local user interface (client UI) is installed on the client computer when you install either the Avamar Client for Windows or
the Avamar Client for Mac OS X. With the client UI, an Avamar icon appears in the notification area ("system tray") on Windows
computers or on the menu bar on Mac computers. Right-click the icon on Windows or click the icon on Mac to open the client menu,
which provides access to backup, restore, program settings, and logs.
•Use the web browser user interface (web UI) to start an on-demand backup or restore, view backup and restore activity for a client
computer, or configure other backup settings for a client computer.
Avamar Installation Manager
The Avamar Installation Manager user interface is part of the AvInstaller software that Customer Support installs on the utility node during
an Avamar server software installation or upgrade. Use the Avamar Installation Manager to install and upgrade software on the Avamar
server.
Avamar Downloader Service
The Avamar Downloader Service manages the process of checking for and downloading Avamar server software updates. The Avamar
Downloader Service software runs on a stand-alone Microsoft Windows server that allows network access to Avamar sites on the
Internet and to all Avamar servers at a site.
Avamar Web Restore
Avamar Web Restore provides access to the following functionality:
•Search for or browse backed up directories and files to restore.
•Download Avamar client software.
•View Avamar product documentation that is stored on the Avamar server.
•Open the Avamar Administrator management console software.
Data Domain system support
You can store backups on either the Avamar server or a Data Domain system. Backup metadata is stored on the Avamar server.
Before you can store backups on a Data Domain system, add the Data Domain system to the Avamar configuration by using Avamar
Administrator. Then select the Data Domain system in the plug-in options when you perform an on-demand backup or when you create a
dataset for a scheduled backup. You can also use the command line interface (CLI) to perform backups to a Data Domain system.
The steps to restore backups are the same whether you restore from the Avamar server or a Data Domain system. The restore process
determines the location of the backup and restores the backup.
Support for Data Domain Cloud Tier was initiated in Avamar 7.4. DD Cloud Tier moves data from Data Domain to the cloud. From the
Avamar Administrator, you can configure cloud tier to move Avamar backups from Data Domain to the cloud, and perform seamless
recovery of these backups.
Data Domain Cloud Tier Disaster Recovery support was initiated with Avamar 7.5. You can recover backups from the cloud in case of the
loss of a Data Domain and also recover an Avamar server from the cloud.
26
Introduction
The Avamar and Data Domain System Integration Guide provides more information about Data Domain systems in an Avamar
environment, including detailed steps to add a Data Domain system to the Avamar configuration.
Data deduplication
Data deduplication is a key feature of the Avamar system. Data deduplication ensures that each unique sub-file, variable length object is
stored only once across sites and servers.
During backups, Avamar client software examines the client file system and applies a data deduplication algorithm that identifies redundant
data sequences and breaks the client file system into sub-file, variable length data segments. Each data segment is assigned a unique ID.
The client software then determines whether this unique ID has already been stored on the Avamar server. If this object resides on the
Avamar server, a link to the stored object is referenced in the backup.
Once an object has been stored on the server, it is not sent over the network again, no matter how many times it is encountered on any
number of clients. This feature significantly reduces network traffic and provides for greatly enhanced storage efficiency on the server.
Figure 4. Data deduplication
1. Break data into atoms (variable length segments of file data).
2. Send and store each atom only once.
3. Up to 500 times daily data reduction in the Avamar backup repository.
Security and networking
The following sections provide an overview of key Avamar security and networking features. The Avamar Product Security Guide provides
full details on product security and network configuration.
Encryption
To provide enhanced security, Avamar can encrypt all data that is sent between clients and the server “in flight.”
You can set the encryption level on a client-by-client basis in client properties, or for an entire group of clients in group properties. You can
also disable “in-flight” encryption entirely.
Each Avamar server can also be configured to encrypt data that is stored on the server “at rest.” The decision to encrypt all data that is
stored in an Avamar server is typically a one-time decision that is made when the server is initially deployed at a customer site.
Introduction
27
IPv4 and IPv6 support
Internet Protocol (IP) is a set of communication rules for routing traffic across networks to addressable devices like Avamar system
components. The Avamar system supports both Internet Protocol Version 4 (IPv4) and IPv6 address notation.
IPv4 notation
IPv4 notation is displayed as four octets, that are 1- to 3-digit base 10 numbers in a range of 0 to 255. Each octet is separated by periods
and represents 8 bits of data for a total address space of 32 bits.
A subnet mask identifies a range (a subnet) of IP addresses on the same network. For Avamar purposes, the subnet mask is /24,
representative of a 255.255.255.0 netmask.
An example of IPv4 address and subnet mask is10.99.99.99/24.
IPv4 notation cannot be abbreviated. If an octet has zero (0) value, use a 0 in that octet.
IPv6 notation
IPv6 notation is displayed as 16 octets, that are 2-digit hexadecimal (base 16) numbers in a range of 00 to FF. IPv6 notation combines
octets by pairs into eight groups that are separated by colons, each group representing 16 bits of data for a total address space of 128
bits.
For Avamar purposes, the subnet mask (called prefix in IPv6) is /64.
An example IPv6 address and prefix is 2001:0db8:85a3:0042:1000:8a2e:0370:7334/64.
As for a group with zero (0) value, IPv6 notation is different from IPv4 that can be abbreviated. For example, the following is a valid IPv6
address and prefix: 2001:db8:abcd:0012::0/64.
Avamar IP configurations
In the Avamar user interface, an IP address may be displayed in either IPv4 or IPv6 notation. The displayed value depends on how that
particular component was configured when the hardware and software were installed.
IPv4 and IPv6 are not interoperable. They operate in separate stacks (that is, parallel, independent networks).
Avamar can be set up in a dual stack configuration. In that case, each Avamar component may have an IPv4 address, an IPv6 address, or
both (one primary and the other secondary). The Avamar user interface may display a component's primary address or both dual stack
addresses. For example, the following IP address for a particular device indicates that it is configured as dual stack:
10.99.99.99/24,2001:db8:abcd:0012::0/64.
TSL 1.2 encryption protocol required
Encrypted traffic using the TLS 1.0 and 1.1 protocols is no longer supported. Browsers, clients, and other components that require these
protocols are not allowed to connect to the server. Only TLS 1.2 encryption is supported.
SSH MAC algorithms
The SSH configuration has been modified to remove weak MAC algorithms that are used for SSH connections.
The following MAC algorithms are used for SSH connections:
•hmac-sha2-512-etm@openssh.com
•hmac-sha2-512
•hmac-sha2-256-etm@openssh.com
•hmac-sha2-256
•umac-128-etm@openssh.com
•umac-128@openssh.com
•hmac-ripemd160-etm@openssh.com
•hmac-ripemd160
Older versions of SSH clients, such as PuTTY or Plink, use weak MAC algorithms for an SSH connection and
NOTE:
must be upgraded. To view the latest release of PuTTY, see http://www.putty.org/
28Introduction
2
Avamar Administrator
Topics:
•Overview of Avamar Administrator
•Installing Avamar Administrator
•Upgrading Avamar Administrator
•Uninstalling Avamar Administrator
•Editing Avamar Administrator client preferences
•Setting a session time-out for Avamar Administrator
•Starting Avamar Administrator
•Avamar Administrator dashboard
•Avamar Administrator user interface elements
Overview of Avamar Administrator
Avamar Administrator is a graphical management console software application that is used to administer an Avamar system from a
supported Windows or Linux client computer.
Install Avamar Administrator on a supported computer and launch the software from the desktop icon or a command shell, or launch the
Java Web Start version of the console software from a web browser or from Backup & Recovery Manager.
Avamar Administrator is the primary user interface for monitoring and configuring the Avamar system. Use it to monitor backup, restore,
and system maintenance activities, as well as to configure backup policies, manage clients and user accounts, and configure other system
settings.
You can administer one Avamar system at a time from Avamar Administrator.
The Avamar Administrator dashboard appears when you log in to Avamar Administrator. The dashboard provides an at-a-glance view of
Avamar system status, as well as access to all functionality through menus and launcher links.
Installing Avamar Administrator
You can install Avamar Administrator on supported Microsoft Windows and 64-bit Linux platforms.
About this task
Details on support for specific operating system versions are available in the Avamar Compatibility and Interoperability Matrix on Avamar
Support at http://compatibilityguide.emc.com:8080/CompGuideApp.
NOTE:
Before installing Avamar Administrator, ensure that the platform has already been manually upgraded to Java 7
or 8. Ensure that the DNS environment is configured so that all clients that run the Administrator can resolve the Hash
File System address (hfsaddr) value.
Installing Avamar Administrator on Microsoft Windows
Steps
1. Log in to the computer on which you are installing Avamar Administrator.
2. Open a web browser and type the following URL:
https://Avamar_server/dtlt/home.html
where Avamar_server is the DNS name or IP address of the Avamar server.
The Avamar Web Restore page appears.
3. Click Downloads.
Avamar Administrator29
4. Do one of the following, depending on the operating system:
•If you are installing the software on 32-bit Windows, click + next to the Windows (32 bit) folder.
•If you are installing the software on 64-bit Windows, click + next to the Windows (64 bit) folder.
5. Do one of the following, depending on the operating system:
•If you are installing the software on 32-bit Windows, click + next to the Microsoft Windows Vista, 7, 8, 8.1, 10, Microsoft
Windows Server 2008 (Console) folder.
•If you are installing the software on 64-bit Windows, click + next to the Microsoft Windows Vista, 7, 8, 8.1, 10, Microsoft
Windows Server 2008, 2008 R2, 2012, 2012 R2 (Console) folder.
6. Locate the Java Runtime Environment (JRE) install package, which is typically the last entry in the folder.
7. If the JRE on the client computer is older than the JRE hosted on the Avamar server, download and install the newer JRE from the
Avamar server:
a. Click the jre-version.exe install package, where version is the JRE version.
b. Open the installation file, or download the file and then open it from the saved location.
c. Follow the onscreen instructions to complete the JRE installation.
8. Click the AvamarConsoleMultiple-windows-version.exe install package, where version is the Avamar Administrator
software version.
9. Open the installation file, or download the file and then open it from the saved location.
10. Follow the onscreen instructions to complete the Avamar Administrator software installation.
Installing Avamar Administrator on Linux
Steps
1. Log in to the computer on which you are installing Avamar Administrator.
2. Open a web browser and type the following URL:
https://Avamar_server/dtlt/home.html
where Avamar_server is the DNS name or IP address of the Avamar server.
The Avamar Web Restore page appears.
3. Click Downloads.
4. Click + next to the Linux for x86 (64 bit) folder.
5. Click + next to the Red Hat Enterprise Linux 5 (Console) folder.
NOTE: Use the Red Hat Enterprise Linux 5 install packages for all supported Linux versions.
6. Locate the JRE RPM install package, which is typically the last entry in the folder.
7. If the JRE on the client computer is older than the JRE hosted on the Avamar server, then download the install package to a
temporary folder such as /tmp.
The install package filename is jre-version-platform.rpm, where version is the JRE version and platform is the computing
platform.
8. Download the AvamarConsole-linux-rhel5-x86_64-version.rpm install package to a temporary install folder such as /tmp.
9. Open a command shell and log in as root on the computer where the software is installed.
10. Change directory to the temporary folder to which you downloaded the install packages by typing a command such as cd /tmp.
11. If you downloaded a JRE, install it by typing rpm -ivh jre-version-platform.rpm.
12. Follow the onscreen instructions to complete the JRE installation.
13. Install Avamar Administrator by typing rpm -ih AvamarConsole-linux-rhel5-x86_64-version.rpm
The install process prompts you to run avsetup_mcc to configure Avamar Administrator.
14. Configure Avamar Administrator by typing /usr/local/avamar/version/bin/avsetup_mcc.
The configuration process prompts you to specify the location of the JRE installation.
15. Press Enter to accept the default install location.
The configuration process prompts you to specify the root directory of the Avamar software.
16. Press Enter to accept the default install location.
A confirmation message appears.
30
Avamar Administrator
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