Hi Geoff,
Thanks for this, that seemed to stop the rebooting on my dev pool. Do you know why it would be an advantage to fence off the Xen Servers? Tom Bean Infrastructure & Support Analyst The Changing Workplace Phone: Fax: Email: Skype: Address: Website: News: +44 (0)1444 44 1000 ext 316 +44 (0)1444 44 0944 tom.b...@changingworkplace.com Contact me via Skype <skype:thomas.bean.cwp?chat> 1 Boltro Road, Haywards Heath, RH16 1BY, United Kingdom changingworkplace.com <http://www.changingworkplace.com/> Sign up for our newsletter <http://visitor.r20.constantcontact.com/d.jsp?llr=wbsdkygab&p=oi&m=110676998 7638> <https://twitter.com/#%21/The_CWP> Description: C:\Users\tomb\AppData\Roaming\Microsoft\Signatures\Tom Bean_files\image001.gif <http://facebook.com/TheChangingWorkplace> Description: C:\Users\tomb\AppData\Roaming\Microsoft\Signatures\Tom Bean_files\image002.gif <http://www.linkedin.com/company/the-changing-workplace> Description: C:\Users\tomb\AppData\Roaming\Microsoft\Signatures\Tom Bean_files\image003.gif Changing the world we work in by providing best-in-class software services to the Corporate Real Estate sector Please don't print this e-mail unless you really need to From: Geoff Higginbottom [mailto:geoff.higginbot...@shapeblue.com] Sent: 09 January 2013 09:01 To: cloudstack-users@incubator.apache.org; tom.b...@changingworkplace.com Subject: RE: Cloudstack Xen Host High Availability and Fencing Hi Tom This is the way it works by design. For each XenServer modify: /opt/xensource/bin/xenheartbeat.sh Locate the two instances of "reboot -f" and comment them out by placing a # in front. Then kill the script followed by a force reconnect from the GUGI (or reboot each XenServer) pidof -x xenheartbeat.sh kill <pid> Regards Geoff Higginbottom D: +44 20 3603 0542 <tel:+442036030542> | S: +44 20 3603 0540 <tel:+442036030540> | M: +447968161581 geoff.higginbot...@shapeblue.com From: Tom Bean [mailto:tom.b...@changingworkplace.com] Sent: 09 January 2013 08:50 To: cloudstack-users@incubator.apache.org Subject: Cloudstack Xen Host High Availability and Fencing Hi All, I have stumbled across an issue/feature with Cloudstack (3.0.2) yesterday which was a little worrying. I was working on a primary storage which was added through Cloudstack but had no VM's stored on it, so I did not think this would cause any issues. While I was working on this storage device, it became unavailable for around 5 minutes, when it became unavailable all my Xen servers fenced, rebooted and all my VM's shut down and one Xen server has now become corrupted. I have tested this again on a second pool I have in cloudstack and when the primary storage becomes unavailable all the Hosts reboot. What I want to know is: 1. Is there any way to disable this? 2. It seems that in a pool where I have 5 storage repositories, if any of them become unavailable, all of the hosts shut down. Is there a way to specify the heart beat files be stored on a specific primary SR? Tom Bean Infrastructure & Support Analyst The Changing Workplace Phone: Fax: Email: Skype: Address: Website: News: +44 (0)1444 44 1000 ext 316 +44 (0)1444 44 0944 tom.b...@changingworkplace.com Contact me via Skype 1 Boltro Road, Haywards Heath, RH16 1BY, United Kingdom changingworkplace.com <http://www.changingworkplace.com/> Sign up for our newsletter <http://visitor.r20.constantcontact.com/d.jsp?llr=wbsdkygab&p=oi&m=110676998 7638> <https://twitter.com/#%21/The_CWP> Description: C:\Users\tomb\AppData\Roaming\Microsoft\Signatures\Tom Bean_files\image001.gif <http://facebook.com/TheChangingWorkplace> Description: C:\Users\tomb\AppData\Roaming\Microsoft\Signatures\Tom Bean_files\image002.gif <http://www.linkedin.com/company/the-changing-workplace> Description: C:\Users\tomb\AppData\Roaming\Microsoft\Signatures\Tom Bean_files\image003.gif Changing the world we work in by providing best-in-class software services to the Corporate Real Estate sector Please don't print this e-mail unless you really need to Important Information This e-mail and the information it contains are confidential and/or privileged and are intended solely for the named recipient/s. 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