HP Data Protector Software Performance White Paper

• HPCreateData

• HPReadData

• LoadSim 2003

HP StorageWorks Library and Tape Tools diagnostics (L&TT)

HP’s industry-leading Library and Tape Tools diagnostics assist in troubleshooting backup and

restore issues in the overall system. They include tools to help identify where bottlenecks exist

in a system, and valuable tools for HP tape drive performance and diagnostics needs. The

Windows version of L&TT uses a graphical user interface (GUI) as shown in Figure 8. All other

versions of the program (such as HP-UX) use a command screen interface (CSI).

Figure 8. Library and Tape Tools Diagnostics GUI – Drive Information

L&TT version 4.2 SR1 was used in this white paper for:

• Determining the rate at which the tape drive reads and writes data

• Determining the rate at which the disk subsystem can write and supply data