At which stage in the Unity power up sequence would the Storage Processor enter Service mode upon detecting an error?
A . After the CMI is started
B . Bootflash
C . POST
D . BIOS
Answer: C
Explanation:
Note: Boot counters are a troubleshooting mechanism that is designed into the Unity architecture to help pinpoint the specific cause of software or hardware events during the boot sequence. If the Unity system detects a problem with software or hardware components, its corresponding Boot Counter is incremented. If a counter reaches a predefined threshold, the SP boots into Service Mode during its next boot cycle.
References: https://www.emc.com/collateral/TechnicalDocument/docu69328.pdf (page 12)