"False Empty Cells" can be reported when running an audit on SL8500 code level 4.13.

Asset ID:	1-73-1020157.1
Update Date:	2010-09-03
Keywords:

Solution Type FAB (standard) Sure

Solution 1020157.1 : "False Empty Cells" can be reported when running an audit on SL8500 code level 4.13.

Impact

An issue with SL8500 code 4.13 was found in-house during the audit of the inside panels. This issue is with full column scans used during physical audits. Sun has not seen the issue on single cell audits. "False Empty Cells" can be reported at 4.13 code on row_1 side_2 <inside panels> only.

The false empty cells could cause the library control software, ACSLS or HSC, to not properly catalog all of the cartridges inside the library or command the library to place another cartridge in this occupied location. If an attempt is made to place a cartridge in an occupied cell it will fail with a reach error.

Contributing Factors

This issue can occur when running an audit on the Sun StorageTek SL8500 Modular Library System running code level 4.13.

The Full Column Scan move is from bottom to top. Failures can occur when the Proximity sensor ranges do not contain the position used to qualify the Row 1 cell.

Additional contributors are:

    a) 9x40 Cartridge (thin barcode)
    b) Hard to read T10K and LTO cartridge label
    c) Unlabeled cartridge

Symptoms

"False Empty Cells" can be reported at 4.13 code on row_1 side_2 <inside panels> on row_1 only.

Root Cause

A problem with SL8500 code 4.13 was found in-house during the audit of the inside panels. This issue has been corrected in SL8500 code 4.14.

Corrective Action

Workaround:

Manually audit, via SLC, all row_1 cells on the inner panels - select physical and verify audit.

Resolution:

SL8500 code 4.14 provides the following fixes;

- Fixed the issue with the audit reporting false empty.
- Fixed a robot motion error and cap motion error in diagnostic self-test.
- Fixed a problem with adding a robot to the left which caused a rail to
go off-line to HLI.
- Fixed PTP and elevator reservation problems.

Once the customer has made the decision to upgrade to microcode level 4.14, use the directions below to download the code. Note that if the customer is already on code level 4.13, as soon as possible, perform the upgrade to 4.14 per the below directions:

1) Navigate to the USR via https://dlrequest-zn-dlapps1.sfbay.sun.com/
2) On this page click the link Location and download Sun software
3) Enter "SL8500" in the search field and click on the Search button
4) Then click the link Sun StorageTek SL8500 FRS_4.14
(all 4.14 materials are presented (URLs and Files) for the 4.14 code)
5) On this page click the link http://artemas.central/StorEdge_Products/AutomatedTapeLibraries/SL8500/4.14/SL8500_FRS414_firmare.jar

Note to Authorized Service Partners:

Sun Authorized Service Partners may contact Sun Services or their Sun Services Representative to receive FAB related information.

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

http://tns.central/fab

For Sun Authorized Service Providers go to:

http://tns.central/SPE/fab/

In addition to the above you may email:

FAB-Manager@sun.com

Internal Contributor/submitter
Richard.Kim@Sun.COM, Bruce.Mcdonald@Sun.COM

Internal Eng Responsible Engineer
Jared.Woodard@Sun.COM Responsible Manager: Steven.P.Johnson@Sun.COM

Internal Eng Business Unit Group
NWS (Storage)

Internal Services Knowledge Engineer
Joe.Davis@Sun.COM

Internal Sun Alert & FAB Admin Info
18-Feb-2009: completed draft and sent to Extended Review.
21-Feb-2009: No feedback from Ext Rvw - sending to Publish.

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