Figure 47. Edit Passwords Options screen

Each password is represented by four decimal digits that are stored in NVRAM (non-volatile memory) in a range of 0001 to 9999. 0000 is used to disable password verification for that level.

Enabling a password causes all disabled higher levels to also be enabled to that value. As a result, prior to accessing a higher level operation, you are prompted first to enter the higher level password. This prevents someone from entering an unprotected Menu mode and changing the lower-level password to defeat it.

You can also use a higher level password to gain access to a lower level operation. For example, you can use the Service password to access the Move Media operation. This gives full access (without validating) to the service operations.

Media can also be locked by software running on the host. The library does not provide a touch screen override for this command. Usually, exiting the host software restores media access. In the event of host failure, you can restore media access by cycling the library power. Procedures for locking and unlocking magazine doors and media are described later in this chapter.

Online

This option enables you to place the library online or offline. By default the library comes online after a power-up initialization.

Status

This option displays the Library Initialization screen. You can identify a tape drive type and view physical tape drive status, tape drive cleaning information, and tape cartridge information by opening the corresponding areas on the screen as shown in Figure 48 on page 40.

Chapter 4. Operation 39

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Image 49
IBM 4560SLX warranty Online, Status