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Solaris
Solaris IP Multipathing (IPMP) Help
Post 302154286 by mainegeek on Friday 28th of December 2007 11:09:08 PM
12-29-2007
IPMP MAC address license limitation
Hi blowtorch, prowla--
Thanks for the prompt input! I plan on using IPMP. As I said before, I can guarantee that each NIC is plugged into a seperate switch and each switch has a dedicated patch panel. They both plug into the same router but that is less likely to be a problem since it is a high-end cisco that is completely modular.
I forgot to mention in my post why it is so important the NIC's MAC address failover also. My companies software is licensed by MAC address. I need to change the MAC address on failover to avoid invalidating the softwares license. I have done extensive research on IPMP but have yet to find a solution to my dilemma.
Although this system requires high availability, I have no problems with a delay in the failover. The users would only have a slight hiccup in the system instead of downtime, me being dispatched, bringing up the second ethernet, and requesting a new license (which could take near a day).
My thought is to configure IPMP so that the primary NIC holds the primary IP and licensed MAC address. The secondary NIC will use a IP (unknown to everyone) on a separate subnet and using a separate MAC address. On failure of the primary NIC, the primary NIC will failover to a unique IP/MAC on the private subnet. The secondary NIC will then attain the public IP/subnet and licensed MAC address. On recovery everything should fail back to the original configuration (if possible--haven't seen info on this).
Any ideas how something like this can be done? I've yet to find any documentation/examples on this topic.... I'm sure very few people require this type of failover.
Anyways, I know this one is probably a stumper... again thanks for your input
prowla-- I have considered all(most) points of failure. We had JBOD disks serving medical images. These have been replaced with dual-path dual HBA SAN attached RAID 5 disks. I also tested our SAN-attached 17TB longterm archive's failover procedure and found that the Veritas DMP was not operating as expected. Basically the mounted filesystem just went
.... I was able to find the error in configuration and resolved that. I'm sure there are more single points of failure. I just haven't found or thought of them yet! 
Thanks for the prompt input! I plan on using IPMP. As I said before, I can guarantee that each NIC is plugged into a seperate switch and each switch has a dedicated patch panel. They both plug into the same router but that is less likely to be a problem since it is a high-end cisco that is completely modular.
I forgot to mention in my post why it is so important the NIC's MAC address failover also. My companies software is licensed by MAC address. I need to change the MAC address on failover to avoid invalidating the softwares license. I have done extensive research on IPMP but have yet to find a solution to my dilemma.
Although this system requires high availability, I have no problems with a delay in the failover. The users would only have a slight hiccup in the system instead of downtime, me being dispatched, bringing up the second ethernet, and requesting a new license (which could take near a day).
My thought is to configure IPMP so that the primary NIC holds the primary IP and licensed MAC address. The secondary NIC will use a IP (unknown to everyone) on a separate subnet and using a separate MAC address. On failure of the primary NIC, the primary NIC will failover to a unique IP/MAC on the private subnet. The secondary NIC will then attain the public IP/subnet and licensed MAC address. On recovery everything should fail back to the original configuration (if possible--haven't seen info on this).
Any ideas how something like this can be done? I've yet to find any documentation/examples on this topic.... I'm sure very few people require this type of failover.
Anyways, I know this one is probably a stumper... again thanks for your input
prowla-- I have considered all(most) points of failure. We had JBOD disks serving medical images. These have been replaced with dual-path dual HBA SAN attached RAID 5 disks. I also tested our SAN-attached 17TB longterm archive's failover procedure and found that the Veritas DMP was not operating as expected. Basically the mounted filesystem just went
.... I was able to find the error in configuration and resolved that. I'm sure there are more single points of failure. I just haven't found or thought of them yet! Last edited by mainegeek; 12-29-2007 at 12:15 AM..
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LEARN ABOUT DEBIAN
condor_power
condor_power(1) General Commands Manual condor_power(1) Name condor_power send - packet intended to wake a machine from a low power state Synopsis condor_power [-h] condor_power[-d] [-m MACaddress] [-s subnet] [ClassAdFile] Description condor_powersends one UDP Wake on LAN (WOL) packet to a machine specified either by command line arguments or by the contents of a machine ClassAd. The machine ClassAd may be in a file, where the file name specified by the optional argument ClassAdFileis given on the command line. With no command line arguments to specify the machine, and no file specified, condor_powerquietly presumes that standard input is the file source which will specify the machine ClassAd that includes the public IP address and subnet of the machine. condor_powerneeds a complete specification of the machine to be successful. If a MAC address is provided on the command line, but no subnet is given, then the default value for the subnet is used. If a subnet is provided on the command line, but no MAC address is given, then condor_powerfalls back to taking its information in the form of the machine ClassAd as provided in a file or on standard input. Note that this case implies that the command line specification of the subnet is ignored. Options -h Print usage information and exit. -d Enable debugging messages. -m MACaddress Specify the MAC address in the standard format of six groups of two hexadecimal digits separated by colons. -s subnet Specify the subnet in the standard form of an IP address. Without this option, the default subnet used will be 255.255.255.255, causing a broadcast. Exit Status condor_powerwill exit with a status value of 0 (zero) upon success, and it will exit with the value 1 (one) upon failure. Author Condor Team, University of Wisconsin-Madison Copyright Copyright (C) 1990-2012 Condor Team, Computer Sciences Department, University of Wisconsin-Madison, Madison, WI. All Rights Reserved. Licensed under the Apache License, Version 2.0. See the Condor Version 7.8.2 Manualor http://www.condorproject.org/licensefor additional notices. condor-admin@cs.wisc.edu September 2012 condor_power(1)