OpenVZ Forum: Support » Server crash with "dd" command

Home » General » Support » Server crash with "dd" command

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Server crash with "dd" command [message #36581]

Thu, 02 July 2009 13:11

dvazart
Messages: 37
Registered: October 2008
Location: France

Member

Hi again !

doing test on my server, I make it hang (HN) running two commands like (in to a VE) :

dd if=/dev/zero of=test bs=1024 count=2000000 && time cp test /tmp/test

I was launched two times this command and my CPU reaches 100% and then it was impossible to take the control by SSH.

Its there a especial UBC parameter to restrict this ?? im trying with --ioprio but not seems to work.

Thanks.

----------- Daniel Vazart ------------
"Knowledge is power, Sharing is human"
------- http://www.vazart.net --------

Report message to a moderator

[Message index]

		Server crash with "dd" command By: dvazart on Thu, 02 July 2009 13:11
		Re: Server crash with "dd" command By: maratrus on Fri, 03 July 2009 09:13
		Re: Server crash with "dd" command By: dvazart on Fri, 03 July 2009 09:51

Previous Topic:	Server crash
Next Topic:	Weird network -> default gateway

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Tue Jul 28 02:39:25 GMT 2026

Total time taken to generate the page: 0.56533 seconds