Hi, 1. The Firmware version was one of the reasons for Warm Migration. 2. I thought "Warm Migration" (with Solaris 11) could happen between different architectures and not "Live". Haven't tried it. Won't it take time to map the runtime data-structures of one machine with the other if we Live Migrate? 3. HP introduced "Warm Migration" with IVM4.3 a month back tough they had "Live Migration" with IVM4.2 I don't know what their use-case is?
Thanks you for your quick responses !!! Regards, Rajesh -----Original Message----- From: Liam Merwick [mailto:liam.merw...@oracle.com] Sent: Monday, June 20, 2011 2:22 PM To: Rajesh Warange Cc: ldoms-discuss@opensolaris.org Subject: Re: [ldoms-discuss] Warm Migration capabilities with LDom 2.1 Hi Rajesh, On 20/06/2011 09:29, Rajesh Warange wrote: > Hello, > I am using LDom 2.1. It seems the commands for "Live Migration" are the same > as that for "Warm > Migration". > The man-page and the Admin Guide do not seem to be having separate option to > the "ldm > migrate-domain" command to separate Warm Migration from Live Migration. > Doubts: > > 1. Has "Warm Migration" been discontinued with LDom 2.1? > If yes, would like to know why. The best way of looking at "live" migration is a vastly improved version of "warm" migration. Instead of suspending the guest domain at the start of the migration, the domain remains up and running while the memory contents are copied to the target (and the source machine tracks what changes are being made in the guest domain during the migration so that those bits can be resent) Then for approx one second at the end the domain is suspended while the remaining modified state is copied. > 2. Is there no way to "Warm Migrate" an LDom with LDom 2.1? There is no command line switch to ldm(1m) that would perform a "warm" migration rather than a live migration. > 3. Is LDom 2.0 the last supported version for "Warm Migration of LDoms" A warm migration can still happen with the 2.1 LDoms Manger if a live migration is not possible (e.g. if the systems had a downrev version of system firmware) I'd be interested in hearing a reason why a user would prefer "warm" migration over "live" migration though. Regards, Liam _______________________________________________ ldoms-discuss mailing list ldoms-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/ldoms-discuss
