IBM Tivoli Storage Manager TSM Server and client components


As data storage management grows more every year, it also becomes more complicated to manage it. The key to properly managing a complex storage environment is to approach it strategically. IBM Tivoli Storage Manager is an enterprise-wide storage management application which provides automated storage management services to workstations, personal computers, and file servers from various vendors, with a variety of operating systems.


Basic Components of Tivoli Storage Manager (TSM)

TSM Server side Components:

Server Program
The server program provides backup, archive, and space management services to the clients. You can set up multiple servers in your enterprise network to balance storage, processor, and network resources.

Administrative interface
The administrative interface allows administrators to control and monitor server activities, define management policies for clients, and set up schedules to provide services to clients at regular intervals. Administrative interfaces available include a command-line administrative client and a web-based interface that is called the Operations Center (TSM V6.4). The Administration Center interface is also available, but the Operations Center is the preferred monitoring interface. Tivoli Storage Manager allows you to manage and control multiple servers from a single interface that runs in a web browser.

Server Database and Recovery Log
The Tivoli Storage Manager server uses a database to track information about server storage, clients, client data, policy, and schedules. The server uses the recovery log as a scratch pad for the database, recording information about client and server actions while the actions are being performed.

Also Read: IBM Spectrum Protect (TSM) Basic Free Tutorials

Server Storage
The server can write data to hard disk drives, disk arrays and subsystems, stand-alone tape drives, tape libraries, and other forms of random- and sequential-access storage. The media that the server uses are grouped into storage pools. The storage devices can be connected directly to the server, or connected through a local area network (LAN) or a storage area network (SAN).

TSM Client side Components:

A client node can be a workstation, a personal computer, a file server, or even another Tivoli Storage Manager server. The client node has IBM Tivoli Storage Manager client software installed and is registered with the server. Network-attached storage (NAS) file servers can also be client nodes, but when you are using NDMP, they do not have Tivoli Storage Manager client software installed.

Backup-Archive client (B/A)
The backup-archive client allows users to maintain backup versions of files, which they can restore if the original files are lost or damaged. Users can also archive files for long-term storage and retrieve the archived files when necessary. Users themselves or administrators can register workstations and file servers as client nodes with a Tivoli Storage Manager server. The storage agent is an optional component that might also be installed on a system that is a client node. The storage agent enables LAN-free data movement for client operations and is supported on a number of operating systems.

Network-attached storage file server (using NDMP)
The server can use the Network Data Management Protocol (NDMP) to back up and restore file systems that are stored on a network-attached storage (NAS) file server. The data on the NAS file server is backed up to a tape library. No Tivoli Storage Manager software needs to be installed on the NAS file server. A NAS file server can also be backed up over the LAN to a Tivoli Storage Manager server. 

Application client
Application clients allow users to perform online backups of data for applications such as database programs. After the application program initiates a backup or restore, the application client acts as the interface to Tivoli Storage Manager. The Tivoli Storage Manager server then applies its storage management functions to the data. The application client can perform its functions while application users are working, with minimal disruption.
The following products provide application clients for use with the Tivoli Storage Manager server:
  • Tivoli Storage Manager for Databases.
  • Tivoli Storage Manager for Enterprise Resource Planning.
  • Tivoli Storage Manager for Mail
Also Read: Tivoli Data Protection (TDP) Installation & Configuration Steps
Application programming interface (API)
The API allows you to enhance existing applications to use the backup, archive, restore, and retrieve services that Tivoli Storage Manager provides. Tivoli Storage Manager API clients can register as client nodes with a Tivoli Storage Manager server.

Tivoli Storage Manager for Space Management
Tivoli Storage Manager for Space Management provides space management services for workstations on some platforms. The space management function is essentially a more automated version of archive. Tivoli Storage Manager for Space Management automatically migrates files that are less frequently used to server storage, freeing space on the workstation. The migrated files are also called space-managed files.

TSM Server Storage components:

With Tivoli Storage Manager, you can use a variety of devices for server storage. Tivoli Storage Manager can use direct-attached storage devices as well as network-attached storage devices. Tivoli Storage Manager represents physical storage devices and media with the following administrator-defined objects.

Also Read: Storage Area Network (SAN) Basic Free Tutorials


Library
A library is one or more drives (and possibly robotic devices) with similar media mounting requirements.

Drive
Each drive represents a drive mechanism in a tape or optical device.

Data mover
A data mover represents a device that accepts requests from Tivoli Storage Manager to transfer data on behalf of the server. Data movers transfer data between storage devices.

Path 
A path represents how a source accesses a destination. For example, the source can be a server, and the destination can be a tape drive. A path defines the one-to-one relationship between a source and a destination. Data may flow from the source to the destination, and back.

Device class
Each device is associated with a device class that specifies the device type and how the device manages its media.

Storage pools and volumes
A storage pool is a named collection of volumes that have the same media type. A storage pool is associated with a device class. A storage pool volume is associated with a specific storage pool. For example, an LTO tape storage pool contains only LTO tape volumes




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