Visit Our UNIX and Linux User Community


Lost one cpu should the box crash


 
Thread Tools Search this Thread
Top Forums UNIX for Advanced & Expert Users Lost one cpu should the box crash
# 1  
Old 10-29-2002
Lost one cpu should the box crash

I've got a E6500 with 6 cpu's over 3 cpu boards.

we lost one cpu should the box keel over ??

I wouldn't have seen this as a Single Point Of Failure

Kie
# 2  
Old 10-29-2002
I know for sure that a box can panic and reboot for failed CPUs. In your case, it depends a great deal on what the system was doing when the crash occured. If that CPU was executing system calls for the OS, then it could have crashed the box.

CPU crashes can have very unusual affect on a system. I have seen everything from no effect to a crash. However, on my HPUX systems the host usually will PANIC ( a system call) and reboot then disable the bad CPU. However, I had one the other day that didn't disable it. It came back as though it was a good one. I had to replace it soon after so it wouldn't bring down the box again.


Smilie
# 3  
Old 11-02-2002
Having multiple CPUs does not necessarily translation to fault tolerant processing (as you are finding out). The following BYTE article might be useful:

http://www.byte.com/art/9702/sec11/art7.htm


Here is another good article:

http://sunsite.nstu.nsk.su/sunworldo...-clusters.html

Hope these help.

Previous Thread | Next Thread
Test Your Knowledge in Computers #775
Difficulty: Medium
UML state machine is a significantly enhanced realization of the mathematical concept of a finite automaton in computer science applications.
True or False?

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Notify when the script run(hourly)on my jump-box only when there is a failure on my remote-box

Team, Presently I have a script, which i have set up cron on one of my Jump-boxes,and gives me the output on every hourly basis,fetching the data from the remote machine.Basically it gives me the list of all active users logged and its count once we execute the script.Here the count is... (6 Replies)
Discussion started by: whizkidash
6 Replies

2. UNIX for Dummies Questions & Answers

I have a 12 core Linux cpu but the load is really high on this box, hovering around 50.

I have a 12 core linux cpu but the load is really high on this box, hovering around 50. What configuration changes do we need to make so that system have no bottleneck. (13 Replies)
Discussion started by: Moon1234
13 Replies

3. Shell Programming and Scripting

Number of CPU'S in UNIX box

Hi, How to find number of CPU'S in unix box. And usage of the total no of CPU'S. (7 Replies)
Discussion started by: sam1226
7 Replies

4. Red Hat

Lost CPU CORES

Hey all, dmidecode | grep -i CPU Socket Designation: CPU 0 Version: Intel(R) Xeon(R) CPU E5530 @ 2.40GHz Socket Designation: CPU 1 Version: Intel(R) Xeon(R) CPU E5530 @ 2.40GHz cat /proc/cpuinfo | grep -i cpu cpu family : 6... (24 Replies)
Discussion started by: rmokros
24 Replies

5. Shell Programming and Scripting

ftp file starting with particular name on Windows box to Unix box using shell script

Hello all ! I'm trying to write a shell script (bash) to ftp a file starting with particular name like "Latest_" that is present on a Windows box to UNIX server. Basically I want to set this script in the cron so that daily the new build that is posted on the Windows box can be downloaded to the... (2 Replies)
Discussion started by: vijayb4u83
2 Replies

6. UNIX for Dummies Questions & Answers

monitoring cpu and memory of the unix box

Hi all, Unix has the TOP and SAR command to monitor machine's performance. Can it be used in a script to alert if the cpu utilization is more than 80 or memory used is more than 90. Is SAR preferable than TOP? Please advise. (3 Replies)
Discussion started by: er_ashu
3 Replies

7. Filesystems, Disks and Memory

Lost Data Lost Admin

First time so excuse my ignorance please. I may not be accurately describing the issue. I have inherited a small lab mostly SUN V120s. We lost power and are trying to recover. Nope no backups... The primary issue I have is 1 box is an Oracle Server. It has 2 36Gb harddrives. I am able to... (3 Replies)
Discussion started by: murphsr
3 Replies

8. Solaris

Unix Box crash

Hi, I had witnessed my Enterprise machine 2500 series crashing last weekend. What is the command that I should use to bring the system to single user mode as the system is not responding to any of the commands :confused: ...Am still living as this is a test system.. :( System was running on... (2 Replies)
Discussion started by: sivam
2 Replies

9. Debian

top for Debian multi-cpu box...

I have a quad cpu Debian box running as an email server. I'm looking to see how the cpu's are being used. Top just shows them alltogether with the 4 processes running. Does anyone know how I can get Top to show me each cpu like the HP-UX top does? Thanks. top - 14:56:08 up 2:35, 1 user, ... (1 Reply)
Discussion started by: natter
1 Replies

Featured Tech Videos