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Tivoli Storage Manager for UNIX Backup-Archive Clients Installation and User's Guide


Technical Changes for Version 5.1 - April 2002

Following is a summary of changes since Tivoli Storage Manager Version 4.2:

Support for Cyclical Redundancy Checking (CRC)
Tivoli Storage Manager supports cyclical redundancy checking (CRC) to verify that data is not being corrupted in transfer during a backup or restore session.

Support for Processing Network Attached Storage (NAS) File System Images
Tivoli Storage Manager supports backup and restore of network attached storage (NAS) file system images to tape drives or libraries that are locally attached to NAS file servers. Data Protection for NDMP enables backup and restore support on the Tivoli Storage Manager Windows NT, 2000, XP, and Windows.NET, AIX, and Solaris servers for NAS file servers from Network Appliance. Data Protection for NDMP is available only with IBM Tivoli Storage Manager Enterprise Edition. See Data Protection for NDMP Version 5.1 Requirements (Enterprise Edition only) for Data Protection for NDMP requirements. See Appendix C, Backing Up NAS File Systems Using NDMP for information on how to back up and restore NAS file system images using the Web client and command line client.

Support for Logical Volume Backup as a Single Object (Image Backup) on Linux86 Client
The Linux86 client is enhanced to support a logical volume image backup of file systems and raw volumes. The Tivoli Storage Manager server does not track individual files in the file system image. File system images are tracked as individual objects and management class policy will be applied to the file system image as a whole. See Performing an Image Backup for more information.

Support for Online Image Backup of File Systems and Raw Logical Volumes on Linux86 Client
The traditional offline image backup prevents access to the volume by other system applications during the operation. For Linux86 only: Tivoli Storage Manager performs an online image backup of file systems residing on a logical volume created by the Linux Logical Volume Manager, during which the volume is available to other system applications. See Performing an Image Backup for more information.

LAN-Free Data Movement Support on HP-UX Client
Tivoli Storage Manager supports LAN-Free data movement in a storage area network (SAN) environment for the HP/UX client. LAN-Free data movement allows client data to move directly from the client to a SAN-attached storage device. Shifting the client data movement from the communications network to a SAN decreases the load on the server. This allows the server to support a greater number of simultaneous client connections. See LAN-Free Data Movement for more information.

Enhanced Web Client Interface
The Web client interface is enhanced to support a JRE 1.3.1 Swing-enabled browser. The Web client facilitates the use of assistive devices for users with disabilities and contains improved keyboard navigation. The native look and feel of the platform running the browser is preserved. See Starting a Web Client Session for more information.

Support for the z/OS file system on the OS/390 Client
Tivoli Storage Manager supports backup and restore of the z/OS file system on the OS/390 Client. See Incremental for more information.

Support for the Sun Quick File System (QFS) 3.5.0 on the the Solaris Client
Tivoli Storage Manager supports backup, restore, archive and retrieve of the QFS file system on the Solaris client. QFS is a high-performance file system that enables file sharing in a SAN. It eliminates performance bottlenecks resulting from applications using very large file sizes. See Incremental for more information.

Support for High Availability Cluster Multi Processing (HACMP) on AIX Client
Tivoli Storage Manager supports HACMP failover on AIX. This allows the client to continue operating in the event of an HACMP node failover and fallback.

Multiple Session No Query Restore
The backup-archive clients can now utilize multiple restore sessions for no query restore operations, increasing the speed of restores. This is similar to the multiple backup session support. It exploits the mount point available on the server. If data is backed up on multiple tapes, and if the server has multiple mount points available, then the restore starts a session for each tape, up to the number your administrator configures. See Resourceutilization for more information.

Consistent Client Return Codes
Reliable, consistent, and documented return codes have been added to the command line client and the scheduler. This facilitates automation of client operations via user-written scripts. By using the QUERY EVENT command with the FORMAT=DETAILED option, administrators can now distinguish between scheduled backups that completed successfully with no skipped files and scheduled backups that completed successfully with one or more skipped files. Also if you use the processing optionpreschedulecmd to run a command, and that command returns a non-zero return code, the scheduled event will not run. This ensures that scheduled events will not run if prerequisite commands do not complete successfully. See Return Codes from the Command Line Interface, Preschedulecmd/Prenschedulecmd, and Postschedulecmd/Postnschedulecmd for more information.


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