We use both options. VIPA and Quagga for single instances that are required to be able to run on any CEC or LPAR in any data center, or using F5's to front multiple instances.
-----Original Message----- From: Linux on 390 Port [mailto:[email protected]] On Behalf Of Mike Wawiorko Sent: Friday, March 04, 2011 9:05 AM To: [email protected] Subject: High Availability zLinux IP address We are planning a high availability z/VM and z/Linux environment across 4 computer halls at two different sites, each with different IP VLANs and subnets. A Linux guest and its application may run in a z mainframe in any one of these four halls. The Linux guest's Vswitch interface IP address will be different in each hall and could be any one of four IP addresses. IP clients will need to connect to the application without knowing where the guest is running and without knowledge of the Vswitch interface address. Does anyone have advice on a good solution to achieve this? One option might be to run the application with a Virtual IP address that is not in any of the 4 Vswitch subnets. I think this would require a dynamic routing protocol in the Linux guest, i.e. an OSPF Daemon. Are there other ways of doing this with, say, load balancers? Regards, Mike Wawiorko Barclays Bank This e-mail and any attachments are confidential and intended solely for the addressee and may also be privileged or exempt from disclosure under applicable law. If you are not the addressee, or have received this e-mail in error, please notify the sender immediately, delete it from your system and do not copy, disclose or otherwise act upon any part of this e-mail or its attachments. Internet communications are not guaranteed to be secure or virus-free. The Barclays Group does not accept responsibility for any loss arising from unauthorised access to, or interference with, any Internet communications by any third party, or from the transmission of any viruses. Replies to this e-mail may be monitored by the Barclays Group for operational or business reasons. Any opinion or other information in this e-mail or its attachments that does not relate to the business of the Barclays Group is personal to the sender and is not given or endorsed by the Barclays Group. Barclays Bank PLC.Registered in England and Wales (registered no. 1026167). Registered Office: 1 Churchill Place, London, E14 5HP, United Kingdom. Barclays Bank PLC is authorised and regulated by the Financial Services Authority. ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/ ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
