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zero-touch administration. All policy information, logging, authentication and security, media management and object inventory is managed through this database. Most of the fields are externalized through Tivoli Storage Manager high level administration commands, SQL SELECT statements or for reporting purposes, by using an ODBC driver.

For storing the managed data, the Tivoli Storage Manager server uses the storage repository.The storage repository is designed from any combination of disk, optical, tape or robotic storage devices, which are locally connected to the server system or which are accessible through a SAN. Exploiting the SAN technology, the server software has features implemented to dynamically share SAN-connected automated tape library systems among multiple Tivoli Storage Manager server systems. The server software provides built-in drivers for more than 300 different device types from every major manufacturer.

Within the storage repository the devices can operate stand-alone or can be linked together to form one or more storage hierarchies. Thestorage hierarchyis not limited in the number of levels and can also span over multiple servers using so-calledvirtual volumes. See 1.2.2.2, “Storage and device concepts” on page 15 for storage management function defined on the storage repository.

1.2.1.2 Tivoli Storage Manager backup/archive client

Data management functions are implemented using Tivoli Storage Manager client software and complementary Tivoli and non-Tivoli products, which work together with the Tivoli Storage Manager server backbone product.

TheTivoli Storage Manager backup/archive client, included with the server program provides the operational backup and archival function. The software implements the patentedprogressive backup methodologyand unique record retention methods as described in 1.2.2.1, “Backup, and archival concepts” on page 13.

All version 3.7 and above backup/archive clients are implemented as multi-session clients, which means that they are able to exploit the

multi-threading capabilities of modern operating systems. This enables the running of backup and archive operations in parallel to maximize the throughput to the server system. Full exploitation of multi-threading on the client also requires a 3.7 or higher Tivoli Storage Manager server.

Depending on the client platform the backup/archive client may provide a graphical, command line or Web user interface (see Figure 3). Many platforms provide all three interfaces. The command line interface is useful for experienced users and allows generation of backup or restore scripts for scheduled execution.

The graphical interface is designed for ease of use for the end user for ad hoc backups and restores. The web client is especially useful for those clients, such as NetWare, where no native GUI is available, or for performing remote

backup/restore operations, for example in a helpdesk environment.

Some UNIX based Version 3.7 clients use a new plug-in architecture to implement an image backup feature for raw device backup. This allows you to backup and recover data that is not stored in file systems or supported database applications. It also provides an additional method to make point-in-time backups of entire file systems as single objects and recover them in conjunction with data backed up by using the progressive backup methodology.

Figure 3. Backup/Archive client user interfaces

1.2.1.3 Tivoli Storage Manager administration

For the central administration of one or more Tivoli Storage Manager instances, and the whole data management environment, Tivoli Storage Manager provides command line or Java-based administration interfaces (see Figure 4), also called administration clients.

Figure 4. Tivoli Storage Manager administration interfaces

Using the uniqueenterprise administrationfeature it is possible to configure, monitor and manage all server and client instances from one administrative interface, known as theenterprise console. It includes:

• Enterprise configuration

• Administrative command routing

• Central event logging functions

The enterprise configuration allows server configurations to be defined centrally by an administrator and then propagated to other servers. This simplifies the

configuration and management of multiple Tivoli Storage Manager servers in an enterprise significantly.

Administrative command routing allows administrators to issue commands from one server and route them to other target servers. The commands are executed on the target servers, and the command output is returned and formatted on the server where the command was issued.

In an enterprise environment with multiple Tivoli Storage Manager servers, client and server events can be logged to a central management server through server-to-server communications, thereby enabling centralized event management and automation.

1.2.1.4 Tivoli Storage Manager externalized interfaces

Tivoli Storage Manager provides a data managementapplication programming interface (API), which can be used to implementapplication clientsto integrate popular business applications, such as databases or groupware applications, into the Tivoli Storage Management solution. The API is also published to allow customers or vendors to implement specialist clients for special data

management needs or non-standard computing environments. In general we distinguish betweenTivoli Data Protection for applicationsoftware products and the API exploitation through vendor applications.

Tivoli Data Protection for applications are separate program products delivered by Tivoli to connect business applications to the Tivoli Storage Manager data management API. Such applications, for example, Oracle, Lotus Notes and Domino, Microsoft Exchange, and Microsoft SQL server, have their own storage management interfaces which are used to interface to Tivoli Storage Manager.

For more information, see 1.4, “Tivoli Data Protection for Applications” on page 21.

On the other hand, many vendor applications also exploit the Tivoli Storage Manager data management API by integrating it directly into their software product to implement new data management functions, or to provide backup and archival functionality on additional system platforms. Some examples are IBM’s CommonStore for R/3 data archival, IBM’s BRMS/400 to provide an AS/400 backup solution, and SSSI’s Archive Backup Client (ABC) for OpenVMS for data backup and recovery.

In addition to the externalized interfaces to the server database as described in 1.2.1.1, “Tivoli Storage Manager server” on page 6, Tivoli Storage Manager offers multiple interfaces for event logging, reporting and monitoring the data

management environment. In general, activities of the Tivoli Storage Manager server and client are logged in the server database and can be sent for reporting and monitoring purposes to externalevent receiversusing event filter

mechanism. Potential event receivers are the Tivoli Enterprise framework, SNMP based systems management software packages, the Windows NT event log, user written applications or others.

To integrate Tivoli Storage Manager storage management with external library management applications Tivoli Storage Manager offers anexternal library manager interface. Using this interface it is possible to integrate the Tivoli Storage Manager server into third-party storage management environments.

1.2.1.5 Tivoli Storage Manager supported environment

Tivoli Storage Manager server and client software is available on many different operating system platforms and can exploit different communication protocols.

Figure 7 gives an overview of the supported environment.

Figure 5. Tivoli Storage Manager supported environments

The Tivoli Storage Manager server software runs on nine different operating platforms plus the IBM Network Storage Manager (NSM). At this time, the software is available in the most recent Version 3.7 on the platforms, as shown in Table 1, illustrating server platforms, operating system, and Tivoli Storage Manager version.

Table 1. Version 3 servers

Server platforms Operating system level Server version

AIX 4.3.1, 4.3.2. 4.3.3 3.7