Understanding SB2500 Post Diagnostics

Asset ID:	1-71-1003707.1
Update Date:	2013-03-06
Keywords:

Solution Type Technical Instruction Sure

Solution 1003707.1 : Understanding SB2500 Post Diagnostics

Applies to:

Sun Blade 2500 Workstation - Version Not Applicable and later
All Platforms

Goal

This document provides guidance on how to understand what is tested when diag-level configuration variable is set to "max" or "min."

Fix

Steps to Follow

When the diag-level configuration variable is set to max, POST enables an
extended set of diagnostic-level tests for the SB2500 workstation. The following tests are performed in this order:
1. All CPUs do full memory test
2. Slave CPUs test IO-Bridge0 and IO-Bridge1
3. Master CPU performs an Init of critical resources
4. Master CPU test
5. Master CPU I2C
6. Master CPU memory test
7. Slave CPU test
8. Slave CPU memory test
9. Master CPU test of Slave CPU s memory
10. Slave CPU executes POST from master memory
11. All CPUs test internal cache
12. All CPUs scrub memory
13. Master CPU tests both IO-Bridge0 and IO-Bridge1
When the diag-level variable is set to min, POST enables an abbreviated set of diagnostic-level tests. The following tests are performed in this order:
1. Master CPU performs an Init of critical resources
2. Master CPU test
3. Master CPU I2C
4. Master CPU memory test
5. Slave CPU test
6. Slave CPU memory test
7. Master CPU test of slave CPU s memory
8. Slave CPU executes POST from master memory
9. All CPUs test internal cache
10. All CPUs scrub memory
11. Master CPU tests both IO-Bridge0 and IO-Bridge1
Approximate POST Completion Times
CPU      Memory            diag-level max                diag-level min
2        8GB                8 minutes                     3 minutes

Product
Sun Blade 2500 Workstation

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