Constellation™ November 2003
9-12 System Software Upgrades
Example
1. Running Version 5.0
Alternate Version 5.5
2. Switch to Alternate Version 5.5.
3. The SPU Controller boots in Version 5.5. Version 5.0 stays the primary
software for 2 minutes.
If the SPU Controller is rebooted in less than 2 minutes, it switches back to
Version 5.0.
4. After Version 5.5 runs successfully for 2 minutes, it becomes the primary
software, and Version 5.0 becomes the alternate software.