The storage agent communicates with the server to obtain and store database information and to coordinate device and volume access. The server and client coordinate and negotiate data access through the SAN. The client will use the storage agent for operations where appropriate. For example, if a SAN path is defined, the client (by means of the storage agent) transfers data on that path. If a failure occurs on the SAN path, failover occurs and the client uses its LAN connection to the Tivoli Storage Manager server and moves the client data over the LAN.

There are cases when the storage agent can send the data directly to the server using the LAN control paths between the storage agent and the server. An example of this would be a LAN-free storage pool that is updated to read-only after the client connects to the server and obtains its initial policy information. The storage agent, instead of failing the operation, will send the data to the server, and, providing that the storage hierarchy is configured so that the next storage pool destination is available, the server will handle the operation. You can also prevent data from transferring over the LAN by specifying the Tivoli Storage Manager server parameters DATAREADPATH and DATAWRITEPATH with the REGISTER NODE or UPDATE NODE commands for the desired node. These settings can be reviewed by issuing the following command on the server for this node:

query node node_name format=detailed

Tivoli Storage Manager supports SAN-attached device sharing in one of the following ways:

vTivoli Storage Manager native library management support consisting of a library manager and library clients or just a library manager. See “ACSLS, SCSI and 349X Tape Library Sharing” on page 6 for details regarding libraries.

v Shared disk storage using a FILE library and the integration of Tivoli SANergy,

IBM TotalStorage SAN File System or other supported file-sharing software. For

current information about supported file-sharing software, see

www.ibm.com/software/sysmgmt/products/

support/IBMTivoliStorageManager.html.

 

v External libraries as defined in the Administrator’s Guide in the appendix,

 

″External Media Management Interface Description.″

 

For additional information about these configurations, see “Types of

 

Environments” on page 5.

LAN-free Client Data Backup Scenario

The following outlines a typical backup scenario for a Tivoli Storage Manager client that uses SAN data movement:

1.The client begins a backup operation. The server reports policy information to the client, including whether a destination is LAN-free. As the client assigns policy settings for files during backup processing, it sends the data LAN-free when the destination for that policy is LAN-free enabled.

A storage pool is a LAN-free destination when the storage pool uses a device shared on a SAN. That device must also have a defined path between the device and the storage agent.

2.The storage agent receives data for those files backed up by the client and assigned to policy settings that use a LAN-free enabled storage pool. The storage agent sends a request for a volume mount to the library manager server. In the external library case, the storage agent contacts the external library manager, using the provided path to the executable.

Chapter 1. Storage Agent Overview 3

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IBM SC32-0129-00 manual LAN-free Client Data Backup Scenario
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SC32-0129-00 specifications

The IBM SC32-0129-00 is a sophisticated component that plays a vital role in the realm of enterprise computing. Primarily designed for IBM's mid-range systems, it is known for its robust performance and reliability, serving as a critical part of data processing and storage architectures.

One of the main features of the SC32-0129-00 is its advanced input/output capabilities. This component supports a variety of connectivity options, enabling seamless integration within existing IT infrastructures. Its compatibility with multiple IBM systems ensures that organizations can enhance their current setups without needing to overhaul their entire technology stack.

The SC32-0129-00 utilizes cutting-edge technology to optimize data flow and accessibility. With its high-throughput design, it allows for rapid data transfer, facilitating efficient processing and retrieval. This is especially crucial in environments where large amounts of data are generated and need to be analyzed in real-time.

In terms of characteristics, the SC32-0129-00 is built with durability in mind. Its construction adheres to stringent quality standards, which means it can withstand the demands of high-volume operations. This resilience makes it a favored choice among businesses looking to maintain uptime and minimize disruptions.

Additionally, the SC32-0129-00 is designed with scalability in mind. As organizations grow and their data needs expand, this component can easily adapt to accommodate increased workloads. This flexibility is essential for businesses that must evolve with changing market conditions and technological advancements.

Another noteworthy aspect of the SC32-0129-00 is its energy efficiency. In an era where sustainability is paramount, efficient power consumption helps organizations reduce their carbon footprint while lowering operational costs. This aligns with IBM's commitment to creating environmentally friendly solutions.

In summary, the IBM SC32-0129-00 is a critical asset for businesses seeking to enhance their data processing capabilities. With its robust input/output features, high throughput, durability, scalability, and energy efficiency, it is engineered to serve the complex demands of today’s digital landscape. Investing in this component could lead to significant improvements in productivity and performance, making it a valuable addition to any enterprise system.
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