Sun StorageTek SL8500 Modular Library System
 
Sun StorageTek SL8500 Modular Library System
 

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In this Document

Goal

Solution

Oracle Confidential INTERNAL - Do not distribute to customer (OracleConfidential).
Reason: Confidential for Oracle Support personnel

Applies to:

Goal

How to Diagnose Elevator Problems on SL8500 Library.

Solution

DISPATCH INSTRUCTIONS
- WHAT SKILLS DOES THE FIELD ENGINEER/ADMINISTRATOR NEED:
Trained on the SL8500 library.

- TIME ESTIMATE: 90 minutes

- TASK COMPLEXITY: 2

FIELD ENGINEER/ADMINISTRATOR INSTRUCTIONS:
- PROBLEM OVERVIEW:
Customer reporting library elevator not working.  Cartridges are not being moved from one rail to the next.

- WHAT STATE SHOULD THE SYSTEM BE IN TO BE READY TO PERFORM THE
RESOLUTION ACTIVITY?:
The library can be online and operational until the it is determined a part needs to be replaced.

- WHAT ACTION DOES THE FIELD ENGINEER/ADMINISTRATOR NEED TO TAKE:
The elevator assembly is located in the front portion of the customer interface module.  Two standard elevator assemblies ( which service both sides of the U-shaped library) are used to vertically transport cartridges across rail boundaries.
The elevator assemblies are powered by +48 VDC provided by the 2 DC Power supplies behind the front facade and an HBV card (located at the rear of the assemblies).  AC power for the DC supplies is routed from the drive and electronics module via the J728 cable that runs on the negative column side of the library. Operation is controlled by the HBZ card.
The elevators are belt-driven and are therefore not counter-weighted.

Refer to the SL8500 Service Manual for complete information on tests, pictures and removal/replacement instructions.
http://download-adc.oracle.com/archive/cd_ns/E21096_01/418609001AB/418609001AB.pdf

There are several components involved with the Elevator Modules that needs to be checked to verify functionality.

If the entire library is offline, have it placed back online to the Host/ACSLS.
If the left elevator is offline to SL Console, have it varied back online.
If the right elevator is offline to SL Console, have it varied back online.  Then modify/vary the CAPs online to HSC/ACSLS.

1. Common failure is for the elevator is 4 cell array becomes fractured or separated at its mount point. This
    results in intermittent failures if fractured or a dead elevator if the array fall off. In either case there is a
    spare, unused, 4 cell array that can be used from the turntable in the bottom of the elevator tower in an
    emergency.

2. Elevator failures can also be caused by a un-cleared reserve from some other robotic failure in the
    library. Rebooting the elevators from the SLConsole should be attempted to clear the reserve. In the
    event that the SLC cannot force the boot due to the reserve, the elevators and caps can be rebooted by
    removing the 2 48 volt supplies for 10 seconds. The original robotic failure needs to be investigated.

3. If rebooting the elevators, open an SLConsole Monitor "Error, Warn, Info" window and observe both
    the physical movements of the mechanisms and the output of the monitor window. Together this will
    provide detailed information on what is happening.


48V Power Supply Module, Drive & Electronics Module Verification:
1. Verify the green LEDs are on in the 48V power Supplies.
2. Logon to the library using the SL Console.
3. Click the Library icon for the desired library.
4. In the menu, click Tools, then click Utilities.
5. On the left side of the screen, select the Self Test tab.
6. In the 'Mode' drop-down menu, select partial.
7.When the Partial test completes, check for the following test entry in the Diagnostic Console window:
   Power supply test   Success  OK:

Elevator Motor Verification:
1. After the library initializes, ask the operator to verify that both elevators are online and operational:
    a. Using SL Console, navigate to the Systems Detail screen.
    b. Open up the 'Elevators' folder.
    c. Click both the left elevator (containing a minus number in its designation) and the right elevator.
    d. The Op State status for both elevators must be online.

HBZ Module Verification:
1. On the top of the HBZ module, verify the green LED is on and the yellow communication LED
    occasionally flashes..
2. Logon to the library using SL Console.
3. In the menu, click Tools, then click Utilities.
4. Click the Library icon for the desired library.
5. On the right side of the screen, select the Self Test tab.

Note: The Partial test may be run without interfering with normal library operations.

6. In the Mode drop-down menu, select Partial, then click Start.
7. When the partial test completes, check for the following entries in the Diagnostic Console window:
    - Network connectivity test   Success  OK: x,x,x,x,x cap
    - Network connectivity test   Success  OK: x,x,-x,x,x elevator
    - Network connectivity test   Success  OK: x,x,x,x,x elevator
    - Network connectivity test   Success  OK: x,x,x,x,x drive Controller
       (Information indicated by "x" is variable.)
8. If the left HBZ module is replaced and the library also contains the service safety door, perform "Service
    Safety Door Verification".

If the above checks fail, look for the following:
- Review the 'Event Log' for elevator related errors and take actions on Result Codes provided.
- Power supply seated correctly.
- Cable connections between Elevator Motor and HBZ.
- Check belts on motor and elevator for damage.

Once it has been determined which component is defective, refer to the Service Manual for instruction on proper removal/replacement of part.

OBTAIN CUSTOMER ACCEPTANCE
- WHAT ACTION DOES THE FIELD ENGINEER/ADMINISTRATOR NEED TO TAKE TO RETURN THE SYSTEM TO AN OPERATIONAL STATE:
Make sure library is online and operational to the customer.

PARTS NOTE:
Oracle/StorageTek SL8500 Modular Library System - Full Components List
https://support.us.oracle.com/handbook_internal/Systems/SL8500/SL8500_components.html

REFERENCE INFORMATION:
SL8500 - Elevator Wheel/Roller Part Number and Replacement Procedure (Doc ID 1015224.1)
SL8500 - Part Number for Z- Frame Elevator Assembly (Doc ID 1022271.1)
SL8500 - Part Number for Complete Pulley Assembly on Z-Frame Elevator Module (Doc ID 1021759.1)
SL8500 - Elevator Tube is Damaged Due to Failed Roller (Doc ID 1319397.1)

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