Sun System Handbook - ISO 3.4 June 2011 Internal/Partner Edition | |||
|
|
Solution Type Technical Instruction Sure Solution 1020179.1 : Sun SPARC[R] Enterprise Mx000 Servers (OPL) How to send a break to a domain and how to disable a break signal
PreviouslyPublishedAs 253688
Applies to:Sun SPARC Enterprise M9000-32 Server - Version: Not Applicable to Not Applicable - Release: N/A to N/ASun SPARC Enterprise M9000-64 Server - Version: Not Applicable to Not Applicable [Release: N/A to N/A] Sun SPARC Enterprise M3000 Server - Version: Not Applicable and later [Release: N/A and later] Sun SPARC Enterprise M4000 Server - Version: Not Applicable to Not Applicable [Release: N/A to N/A] Sun SPARC Enterprise M5000 Server - Version: Not Applicable to Not Applicable [Release: N/A to N/A] All Platforms GoalWhat is a "Break signal"?Break means to forcibly interrupt the domain and restore the initial state. For example to recover from a hung domain. The signal used for this purpose is called a break signal. When a break signal is sent from a domain console, XSCF receives the signal and stops the domain at an ok prompt. Note: When working with a hung domain consult <Document 1020078.1> Sun SPARC(R) Enterprise Mx000 Servers: How to deal with a hung or unresponsive domain. SolutionHow to enable and disable the domain responding to the break signal:There are two switches involved in controlling the behavior of the sendbreak command:
Normally a system should be run with the Operator Panel keyswitch in Locked position and the software "Secure Mode" switch set to "on".
Examples:XSCF>showdomainmode -d 0 The behavior is described in detail in the Sun SPARC Enterprise M3000/M4000/M5000/M8000/M9000 Servers XSCF User's Guide Note: When the Operator Panel Switch is turned to "Service" the break signal will always be executed regardless of the setting of "Secure mode". To view the setting of the Operator Panel Switch use "showhardconf". XSCF> showhardconf How to send a break signal to a domainDocumented:
A break signal can be send to a domain using the "sendbreak" command. Not documented: On a console connection (with the "console" command) apply the following key combination "ctrl" and "\" resulting in ascii value 0x1c (decimal = 28). This will also send a break signal . Internal Comments Source code of the undocumented "ctrl -\" Search for: "break signal from telnet" Attachments This solution has no attachment |
||||||||||||
|