IBM E16RMLL-I Implementation Guide - Page 597
restore LAN-free or LAN-based volume image backups. The image data should
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Figure 17-1 shows how data is actually transferred on a Storage Area Network during server-free backup/restore. LAN/WAN (TCP/IP) Client SAN FC Device Backup Server Data Tape Data Mover Data Flow Control Flow Figure 17-1 Server-free data movement Operations for server-free backup/restore are done in the following order: 1. The Tivoli Storage Manager client initiates the backup or restore request. 2. The Tivoli Storage Manager Server issues a mount request to the library. 3. The datamover initiates a copy operation. 4. The data is copied between the disk and the tape library. Server-free operations transfer only volume images, not standard, file-level data. If the client cannot perform a server-free backup or restore, the operation first fails over to LAN-free operation. If a LAN-free operation cannot be performed, the client attempts a LAN-based backup or restore. Server-free operation can restore LAN-free or LAN-based volume image backups. (The image data should be stored in storage pools with a data format of NONBLOCK.) Currently, server-free image backup is supported for Windows 2000 clients only. Image backup of both raw volumes and volumes that contain NTFS file systems are supported. Tivoli Storage Manager supports both online and offline image backup using server-free data movement. Chapter 17. Server-free data movement 567
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