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Full Discussion: Solaris IP Multipathing (IPMP) Help
Operating Systems Solaris Solaris IP Multipathing (IPMP) Help Post 302153487 by mainegeek on Monday 24th of December 2007 10:44:42 PM
Old 12-24-2007
Solaris IP Multipathing (IPMP) Help
Hello All,

I work for a Health care company at a local trauma hospital. I maintain a Picture Archiving and Communication System (PAC's). Basically, any medical images (X-Ray, CT, MRI, Mammo, etc) are stored digitally on the servers for viewing and dictation from diagnostic stations. I took over this job about 8 months ago. Considering this is a major hub hospital I have made a huge effort to pinpoint and eliminate single points of failure. I have scripted nightly system back ups of major (core) systems and tested disaster recovery and high availability systems. Any problems I have found I have corrected promptly.

My last single point of failure ends up being the network connectivity. My core systems are connected by one (1) Ethernet connection to the hospitals network. This introduces single points of failure across the entire network path. The systems could be brought down by switch or switch port failure.

So..... I decided to research Solaris IPMP. Since "most" of my core servers run Solaris 9 I figured this would be a good solution especially since I can guarantee each network connection is connected to its own switch.

My problem however, is that my companies software is licensed by the MAC address. Most Sun boxes have a per machine MAC ID versus a typically per port configuration. Well, from my research IPMP requires both interfaces to have unique ID's. So Solaris must be configured at the firmware to use different MAC addresses on each NIC. Is there a way to not only failover IP/netmask but also the MAC address?

Basically, each system has two (2) NIC's. I want to have the primary NIC hold the only Public address and licensed MAC address. The secondary interface will hold a private address on a separate subnet with a separate MAC address. When a failure is found the primary NIC will fail to a its own unique private IP and MAC address; the secondary NIC will then fail over to the primaries IP & MAC. This should provide continuous uptime without invalidating the systems license.

Has any one down anything similar? Any crib notes, ideas, sources of info or thoughts?
 

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LEARN ABOUT PLAN9

install-solaris

install-solaris(1M)													       install-solaris(1M)

NAME

       install-solaris - install the Solaris operating system

SYNOPSIS

       install-solaris

       install-solaris	invokes  the  Solaris  Install	program. Depending on graphical capability and available memory at the time of invocation,
       install-solaris invokes either a text-based installer or a graphical installer.

       The following minimum requirements for physical memory dictate which features are available during installation:

       For SPARC machines:

       128 MB

	   Minimum physical memory for all installation types

       128 MB

	   Minimum physical memory required for windowing system

       384 MB

	   Minimum physical memory required for graphical-based installation

       For x86 machines:

       256 MB

	   Minimum physical memory for all installation types

       256 MB

	   Minimum physical memory required for windowing system

       512 MB

	   Minimum physical memory required for graphical-based installation

       In some cases, even if the minimum physical memory is present, available virtual memory after system startup can limit the number  of  fea-
       tures available.

       install-solaris	exists	only  on  the Solaris installation media (CD or DVD) and should be invoked only from there. Refer to the  for more
       details.

       install-solaris allows installation of the operating system onto any standalone system. install-solaris loads the software available on the
       installation media. Refer to the  for disk space requirements.

       Refer to the  for more information on the various menus and selections.

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcdrom  (Solaris instal-  |
       |			     |lation media)		   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Evolving			   |
       +-----------------------------+-----------------------------+

       pkginfo(1), install(1M), pkgadd(1M), attributes(5)

       It is advisable to exit install-solaris by means of the exit options in the install-solaris menus.

								    23 Sep 2005 					       install-solaris(1M)
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