Why 10 recovery nodes?, You won't get much reliability/availability improvement beyond more than two spared nodes. A probability of double outages is very small and so indistinguishable when compared with more than two simultaneous outages.
For active-active n+1 architecture, there are cases that one may want more than two active redundant nodes. However, it probably aims more toward performance in addition to reliability. I sent you a reply to your early e-mail regarding our website for more reading materials via a private e-mail and a response to oscar-user mailing list. However, I just got a bounced e-mail notofication that I am not allowed to post/respond to oscar-user. box www.latech.edu/~box -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Stephen L. Scott Sent: Monday, June 14, 2004 10:23 AM To: Rajiv Cc: [EMAIL PROTECTED] Subject: Re: [Oscar-devel] OSCAR-Failure Recovery through cluster management sofware? There are some ongoing reseach efforts to do this work - however, i am unaware of a current "solution" to this problem. stephen Rajiv wrote: > Dear All, > I have configured 128-node OSCAR in my company. Since all nodes are kept > in the same room some of the nodes fail often. I have 10 nodes dedicated > to failure recovery. I have two queries in this situation. > > 1. Is there any opensource cluster management software that keeps track > of the hardware details the systems in the cluster so that when one node > fails the other node (dedicated for failure recovery) gets waked up > automatically shutting down the failed node. > > 2. Can heart-beat connection be established in OSCAR itself or HA-OSCAR > is required. I want to have 10 nodes dedicated for failure recovery. > These 10 nodes do not form part of the normal operation of the cluster. > When nodes fails these nodes takes control of the failed node shutting > down the later and joins the cluster through cluster management software. > > Regards, > Rajiv -- ------------------------------------------------------------------------ Stephen L. Scott, Ph.D. voice: 865-574-3144 Oak Ridge National Laboratory fax: 865-576-5491 P. O. Box 2008, Bldg. 5600, MS-6016 [EMAIL PROTECTED] Oak Ridge, TN 37831-6016 http://www.csm.ornl.gov/~sscott/ ------------------------------------------------------------------------ ------------------------------------------------------- This SF.Net email is sponsored by the new InstallShield X. >From Windows to Linux, servers to mobile, InstallShield X is the one installation-authoring solution that does it all. Learn more and evaluate today! http://www.installshield.com/Dev2Dev/0504 _______________________________________________ Oscar-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/oscar-devel ------------------------------------------------------- This SF.Net email is sponsored by The 2004 JavaOne(SM) Conference Learn from the experts at JavaOne(SM), Sun's Worldwide Java Developer Conference, June 28 - July 1 at the Moscone Center in San Francisco, CA REGISTER AND SAVE! http://java.sun.com/javaone/sf Priority Code NWMGYKND _______________________________________________ Oscar-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/oscar-devel
