Sun StorageTek SL8500 Modular Library System
 

PLA-Support>Sun Systems>Sun_Other>Sun Collections>SN-OTH: Sun FAB
 

Applies to:

Symptoms

After replacing the old vs new SL8500 Cap assembly the top gear can become stripped.  To verify the gear is stripped remove the top Cap motor and visually inspect the gear.

SL8500 Cap Assembly gear will strip (see details below).

Changes

 Not applicable.

Cause

If the new style SL8500 CAP Assembly is installed in place of the original CAP Assembly without a HBZ reboot before use the CAP gear will strip if the incorrect servo profile is loaded. The newer style Cap assembly was upgraded with a 4-1 gear ratio and the original servo profile will strip the gear upon use.

The new CAP Assembly has two servo motors and a different servo profile. This requires a change to the CAP replacement procedure if upgrading from old to new.

The old style CAP Assembly (part number 313911303) went out of production and was replaced by the new style CAP Assembly, released via ECO 142374 in March of 2007.  The new style CAP Assembly part number is 7024890.

Solution

Affected Parts:

41963970x and 7024890 SL8500 Cap Assembly

Workaround:

No workaround available - see Resolution section below.

Resolution:

When replacing an older style CAP assembly with the newer two motor design a HBZ reboot is required before use of the Cap for the first time after replacement.  The HBZ reboot is available via SLC by selecting the associated Cap assembly in the Diagnostic Menu. When the system detects the new Locking motor it will load the new servo profile. The loaded servo profile can be verified in SLC at library code 7.01 or greater code:

Procedure; reference the current SL8500 Service manual for detailed instructions

Note; highly recommend minimum SL8500 code at 7.01

SSD<service safety door>

-Activate the SSD

-Replace the original style Cap Assembly with the new style Cap Assembly.

-Connect all 3 connectors

Cap_A; Cap Motor_P792/Cap Locking Motor_P793/Cap Switch_P748.

Cap_B; Cap Motor_P756/Cap Locking Motor_P757/Cap Switch_P747.

-Deactivate the SSD; reposition the SSD to the center home position.

-Reboot the HBZ

SLC; Tools—Diagnostics—Cap--Open Cap Folder--Select the Correct Cap—Reboot

-Verify the correct servo profile is loaded before using the Cap at 7.01 or greater code.
SLC; Tools—System Detail—Cap—Select the associated Cap—Properties—Hardware Version

-Hardware Version 1 for use with the original Cap Assembly

-Hardware Version 2 for use with the newer dual motor Cap Assembly.

Note; below 7.01 via log snapshot a review of the HBZ trace file is required to verify the correct servo profile is loaded.

If the incorrect servo profile is shown contact remote support before using the Cap.

No SSD<service safety door>

-Take the library offline from the Library Manager.

-Open the front library access door.

-Replace the original style Cap Assembly with the new style Cap Assembly.

-Connect all 3 connectors

Cap_A; Cap Motor_P792/Cap Locking Motor_P793/Cap Switch_P748.

Cap_B; Cap Motor_P756/Cap Locking Motor_P757/Cap Switch_P747

-Close the front library access door.

-After initialization is complete verify the correct servo profile is loaded before using the Cap

SLC; Tools—System Detail—Cap—Select the associated Cap—Properties—Hardware Version

-Hardware Version 1 for use with the original Cap Assembly

-Hardware Version 2 for use with the newer dual motor Cap Assembly.

Note; below 7.01 review of the HBZ trace is required to verify the correct servo profile is loaded.

If the incorrect servo profile is shown contact remote support before using the Cap.

References:

ECO: 142374

For information about FAB documents, its release processes, implementation strategies and billing information, go to the following URL:

• http://tns.central.sun.com/fab

In addition to the above you may email:

• FAB-Manager_US_grp@oracle.com

Internal Contributor/submitter: Bruce.Mcdonald@Sun.COM
Internal Eng Responsible Engineer: Douglas.Luebke@Sun.COM
Responsible Manager: Steven.P.Johnson@Sun.COM
Internal Services Knowledge Engineer: Joe.Davis@Sun.COM
Internal Eng Business Unit Group: NWS (Storage)

This solution has no attachment