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Full Discussion: Solaris IP Multipathing (IPMP) Help
Operating Systems Solaris Solaris IP Multipathing (IPMP) Help Post 302153805 by blowtorch on Wednesday 26th of December 2007 11:29:17 PM
Old 12-27-2007
You can, and should, use IPMP. Here's how we setup IPMP on our systems:

Code:
bash-3.00# ls -l /etc/hostname*
-rw-r--r--   1 root     root         147 Dec 19 05:49 /etc/hostname.e1000g0
-rw-r--r--   1 root     root         103 Dec 19 05:01 /etc/hostname.e1000g4
for i in /etc/hostname.e1000g*; do
> echo $i
> cat $i
> done
/etc/hostname.e1000g0
servername-e1000g0-ipmp netmask 255.255.255.0 broadcast + group mnb -failover deprecated up
addif servername netmask 255.255.255.0 up
/etc/hostname.e1000g4
servername-e1000g4-ipmp netmask 255.255.255.0 broadcast + group mnb -failover deprecated up

You can call your group anything you want, and make sure that you add the servername and servername-e1000g0/g4 (this will, of course, depend on your driver and your hardware) in the /etc/hosts file.

So we use three IP addresses, and have the actual server IP as a virtual IP that will failover to the other NIC in case of a network failure on the primary interface (e1000g0 in this case).
You can test your IPMP using the if_mpadm command. Check the man page for details.
 

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LEARN ABOUT MOJAVE

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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