Can any one explain me Shared-IP and Exclusive IP ?? Post: 302373941

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Operating Systems Solaris Can any one explain me Shared-IP and Exclusive IP ?? Post 302373941 by sbk1972 on Monday 23rd of November 2009 02:14:49 AM

11-23-2009

Registered User

Lets relate it to hose pipes. Shared IP is like you are using one hose that is shared to a number of flats. Exclusive IP is like your flat having its own hose pipe.

I use shared and exclusive. In the global zone Ive created an aggregated link ( joined a number of nics together to make a really fast NIC, or `pipe`) On a number of training zones, Ive then used this NIC as a SHARED IP, i.e. that the 5 training zones using that pipe, each having a virtual ip configured using the underlying pipe.

On a production zone, where I want more control of the NIC, Ive created the production zone using exclusive NIC. Within the zone configuration file ( zonecfg ) I just tell it that Im using the exxclusive-ip and tell it what nic the zone will have.

Exclusive-IP allows for greater control over the NIC, SHared-IP doesnt, as the Global zone controls the underlying hardware. When it comes to zones and hardware, zones dont have truely 100% control over it. ITs like a client PC using a proxy server to surf the web. On the surface it looks like your internet request surfs the net, but infact its your proxy server that is doing it. So, sometimes the application, zone, needs more control over its NIC, if you are using clustering software, IPMP etc etc, so you use the EXclusive-IP in this situation.

Sorry if my explanation is a bit over the place :-)

SBK

sbk1972

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LEARN ABOUT MINIX

rem_drv

rem_drv(1M)                                                                                                                            rem_drv(1M)

NAME

       rem_drv - remove a device driver from the system

SYNOPSIS

       rem_drv [-b basedir] device_driver

       The  rem_drv command informs the system that the device driver device_driver is no longer valid. If possible, rem_drv unloads device_driver
       from memory. rem_drv also updates the system driver configuration files.

       If rem_drv has been executed, the next time the system is rebooted it automatically performs a reconfiguration boot (see kernel(1M)).

       The following options are supported:

       -b basedir      Sets the path to the root directory of the diskless client. Used on the server to execute rem_drv for a client. The  client
                       machine must be rebooted to unload the driver.

                       Note -  The  root  file system of any non-global zones must not be referenced with the -b option. Doing so might damage the
                               global zone's file system, might compromise the security of the global zone, and might damage the non-global zone's
                               file system. See zones(5).

       Example 1: Removing the sd Driver

       The following example removes the sd driver from use:

       example% rem_drv sd

       Example 2: Removing a Diskless Client

       The  following example removes the driver from the sun1 diskless client. The driver is not uninstalled or unloaded until the client machine
       is rebooted.

       example% rem_drv -b /export/root/sun1 sd

       Note the caveat on the use of the -b option in the description of that option, above.

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

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE         |      ATTRIBUTE VALUE        |
       +-----------------------------+-----------------------------+
       |Availability                 |SUNWcsu                      |
       +-----------------------------+-----------------------------+

       add_drv(1M), kernel(1M), update_drv(1M), attributes(5), devfs(7FS)

                                                                    6 Apr 2005                                                         rem_drv(1M)