| Asset ID: |
1-72-1319438.1 |
| Update Date: | 2012-10-10 |
| Keywords: | |
Solution Type
Problem Resolution Sure
Solution
1319438.1
:
SL8500 - Rail Communication Problems May Cause Multiple Robot Failures on the Same Rail
| Related Items |
- Sun StorageTek SL8500 Modular Library System
|
| Related Categories |
- PLA-Support>Sun Systems>TAPE>Tape Hardware>SN-TP: SL3000-8500 Library
|
In this Document
Applies to:
Sun StorageTek SL8500 Modular Library System - Version Not Applicable and later
Information in this document applies to any platform.
Checked for relevance on 10-Oct-2012.
Symptoms
Repeating H-Bot failures on the same rail.
H-Bot timeouts
H-Bot restart failures
5070 and 5010 errors
Result code
RC5070
RC5010
Cause
Possible rail communication problem. Terminators are the most likely cause for poor rail communications but it can also be caused by a faulty HBS card, or rarely, copper strip contamination.
Solution
Stats Network Command Useful - Do not overlook rail communication problems any time multiple bot failures occur on any rail. The easiest way to display the communication statistics is to issue the "stats network" command at the CLI. Look for errors, frames and drops. Normally these number should be in the 1 to 4 digit range depending on when the library was last booted. Any of these numbers in the 5+ digit range are cause for concern. At no time should the errors be more than 5% of the received packets. Typical numbers are below 1%. Contact Tape Hardware Support for additional help as needed.
The attached example shows low usage but 5% of the packets on Rail 3 are receiving errors and should be watched. In normal operations the packets are in the millions range after a few months of usage.
Attachments
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