VSWITCH and layer 3
From what I understand, VSWITCH with layer 3 and multiple real adapters works in fail-over mode. I thinking of putting some VSE on a VSWITH using this method. My question, is what type of failures does it recover from (or fail-over)? Thanks, Frank M. Ramaekers Jr. Systems Programmer MCP, MCP+I, MCSE RHCE American Income Life Insurance Co. Phone: (254)761-6649 1200 Wooded Acres Dr. Fax: (254)741-5777 Waco, Texas 76701 _ This message contains information which is privileged and confidential and is solely for the use of the intended recipient. If you are not the intended recipient, be aware that any review, disclosure, copying, distribution, or use of the contents of this message is strictly prohibited. If you have received this in error, please destroy it immediately and notify us at privacy...@ailife.com.
Re: VSWITCH and layer 3
On Wednesday, 08/25/2010 at 08:34 EDT, Frank M. Ramaekers framaek...@ailife.com wrote: From what I understand, VSWITCH with layer 3 and multiple ?real? adapters works in ?fail-over? mode. I thinking of putting some VSE on a VSWITH using this method. My question, is what type of failures does it recover from (or fail-over)? Make sure you have support for VSWITCH in your version of VSE. I believe that there were device driver updates last year. In layer 3 or layer 2 mode, the VSWITCH fails over to another OSA when: - Communication with the switch port is lost (switch is powered off / recycled, port deactivated, cable pull, ...) - The OSA fails to to respond to CP in a timely fashion (stalls) - An unrecoverable I/O error occurs with the OSA Alan Altmark z/VM Development IBM Endicott
Re: VSWITCH and layer 3
z/VSE will have similar protection that a Linux virtual machine from OSA or Switch failures, since they will be redundant (assuming the redundant pieces are actually separate devices). On 08/25/2010 07:31 AM, Frank M. Ramaekers wrote: From what I understand, VSWITCH with layer 3 and multiple “real” adapters works in “fail-over” mode. I thinking of putting some VSE on a VSWITH using this method. My question, is what type of failures does it recover from (or fail-over)? Thanks, Frank M. Ramaekers Jr. Systems Programmer MCP, MCP+I, MCSE RHCE American Income Life Insurance Co. Phone: (254)761-6649 1200 Wooded Acres Dr. Fax: (254)741-5777 Waco, Texas 76701 -- Rich Smrcina Phone: 414-491-6001 http://www.linkedin.com/in/richsmrcina Catch the WAVV! http://www.wavv.org WAVV 2011 - April 15-19, 2011 Colorado Springs, CO
Re: VSWITCH and layer 3
Ideally, you'd like to have a separate device. Separate adapter (separate slot) and plugged into a separate switch. Perhaps even separate media (GBE LX vs. 1000Base-T). Is there any performance improvement with GBE LX over 1000Base-T? Frank M. Ramaekers Jr. -Original Message- From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On Behalf Of Rich Smrcina Sent: Wednesday, August 25, 2010 7:57 AM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: VSWITCH and layer 3 z/VSE will have similar protection that a Linux virtual machine from OSA or Switch failures, since they will be redundant (assuming the redundant pieces are actually separate devices). On 08/25/2010 07:31 AM, Frank M. Ramaekers wrote: From what I understand, VSWITCH with layer 3 and multiple real adapters works in fail-over mode. I thinking of putting some VSE on a VSWITH using this method. My question, is what type of failures does it recover from (or fail-over)? Thanks, Frank M. Ramaekers Jr. Systems Programmer MCP, MCP+I, MCSE RHCE American Income Life Insurance Co. Phone: (254)761-6649 1200 Wooded Acres Dr. Fax: (254)741-5777 Waco, Texas 76701 -- Rich Smrcina Phone: 414-491-6001 http://www.linkedin.com/in/richsmrcina Catch the WAVV! http://www.wavv.org WAVV 2011 - April 15-19, 2011 Colorado Springs, CO _ This message contains information which is privileged and confidential and is solely for the use of the intended recipient. If you are not the intended recipient, be aware that any review, disclosure, copying, distribution, or use of the contents of this message is strictly prohibited. If you have received this in error, please destroy it immediately and notify us at privacy...@ailife.com.
