From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Tessler Subject: XEN migration architecture question Date: Thu, 20 Jan 2005 12:44:40 -0800 (PST) Message-ID: <20050120204440.26397.qmail@web41413.mail.yahoo.com> Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="0-1851975094-1106253880=:25982" Return-path: Sender: xen-devel-admin@lists.sourceforge.net Errors-To: xen-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: xen-devel@lists.sourceforge.net List-Id: xen-devel@lists.xenproject.org --0-1851975094-1106253880=:25982 Content-Type: text/plain; charset=us-ascii I have an important question about XEN's migation operation related to the XEN block and network back/front drivers. If I migrate a domain from one machine to another in the middle of heavy disk/network activity, what happnens to the back/front end XEN drivers? (I see they have suspend/resume operations but I don't believe they are being used) I see that the front end drivers are passing machine addresses to the back-end drivers - are these pointers somehow still valid when a domain is moved to another machine? Shouldn't the drivers wait until there is no I/O activity before being migrated? Thanks, Eric --------------------------------- Do you Yahoo!? Yahoo! Search presents - Jib Jab's 'Second Term' --0-1851975094-1106253880=:25982 Content-Type: text/html; charset=us-ascii
I have an important question about XEN's migation operation related to the XEN block and network back/front drivers.  If I migrate a domain from one machine to another in the middle of heavy disk/network activity, what happnens to the back/front end XEN drivers? (I see they have suspend/resume operations but I don't believe they are being used)  I see that the front end drivers are passing machine addresses to the back-end drivers - are these pointers somehow still valid when a domain is moved to another machine?  Shouldn't the drivers wait until there is no I/O activity before being migrated?
 
Thanks,
Eric

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