Library Control Card (LCC) display codes

Edit online

The Library Control Card (LCC) in the TS4500 tape library has a 4 character display code. The display code provides status information for the card and library.

Boot-up process

When the LCC is reset, or the library is powered up the following codes are presented:
  • FPGA version

    EXXX: The XXX refers to the version of the chip that controls the hardware logic.

  • Boot sequence countdown

    Starting from FFFF, the display counts down to FFF0. Each change indicates a different step in the boot-up sequence.

    Note: If an LCC display stays the codes EXXX or FXXX for more than 30 seconds, there is an internal LCC problem.

Determining the primary and cache LCC

Once the boot-up sequence is finished, the library selects which LCC will be the primary and which LCCs will be cache.

The display for primary LCC will toggle between two sets of codes.
  1. If the LCC is plugged into slot A (the right-hand LCC slot in the card cage, from the perspective facing the back of the library), the display toggles between A0XX and 00AX.
    1. The A in A0XX refers to the LCC slot position. The XX refers to the frame number.
    2. The A in 00AX means that the LCC is primary. The X refers to the primary/cache negotiation step. This numeric number counts down and eventually remains at zero.
  2. If the LCC is plugged into slot B (the left-hand LCC slot in the card cage, from the perspective facing the back of the library), the display toggles between B0XX and 00AX.
    1. The B in B0XX refers to the slot position. The XX refers to the frame position.
    2. The A in 00AX means that the LCC is primary. The X refers to the primary/cache negotiation step. This numeric number counts down and eventually remains at zero.

Final display codes

Once the primary LCC is selected and the library is running normally, you will see the following in the LCC display:
  1. The primary LCC in the slot A will toggle between A0XX and 00AX. If there is a primary LCC in the B slot then it will toggle between B0XX and 00AX. The display for the primary/cache negotiation step will be zero.
    Note: When the primary LCC displays code 00AX, there is a dot in the lower right side of the display. The dot helps you identify the primary LCC when an error code is also being displayed. For example, if there is a power error then 00AX is replaced by the HEC/HECQ code for that particular error.
  2. The LCCs in slot A that are not primary will toggle between A0XX and 00C0. If there is a non-primary LCC in slot B then it will toggle between B0XX and 00C0. The C in 00C0 means that the LCC is cache and not primary.

Updating the library firmware

There are two codes that can appear when the library firmware is updated:
  1. CF0X: This code means that a user is updating the library firmware. The X shows the update progress by a descending sequence (F, E, D...0).
  2. CE0X: This code means the LCC is down level and is updating its firmware from the primary LCC. This update is not initiated by a user. As with the previous code, the X shows the update progress by a descending progress sequence (F, E, D...0) .