To see vhost on VIOS after creating an HMC profile Post: 302376865

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Operating Systems AIX To see vhost on VIOS after creating an HMC profile Post 302376865 by jamesp on Wednesday 2nd of December 2009 01:32:55 PM

12-02-2009

Registered User

Yes, you missed several steps. There is at least one Redbook on this subject. Let me run over the high points for you.
1) Spend some time thinking about how many client partitions you are likely to need and what resources those partitions are likely to require.
2) For each client partition you will need, modify the VIOS profile to add at least one v-scsi host adapter in it. When defining the host adapters, do _not_ use the "any" option. It will just cause problems later. When defining each host adapter, make sure to specify the partition ID of the client partition that will be using it and the virtual slot number of an available virtual slot in that client. By available, I mean a virtual slot number that is not occupied by a virtual serial or virtual network adapter.
3) When the VIOS profile has been modified to your satisfaction, power off the VIOS by running "shutdown -F". You can also use the HMC to power it off, but specify the "OS option". Do not use the "immediate" option, since that is equivalent to unplugging the power cord and may leave your VIOS rootvg in a bad state. But the important point here is that in order to let the VIOS see the new partition definition, you must deactivate and reactivate it. A simple reboot will not do this.
4) Use the HMC (or IVM if that is what you have) to re-activate the VIOS with the new partition definition. When it comes back up again, the new vhostX adapters should be available. You can assign your disk resources to the vhost adapters at this point.
5) Use the HMC to modify the partition definitions for each client, to add the client vscsi adapters. Make sure to specify the correct virtual slot number in the VIOS for the corresponding vhost adapter for that client. It is possible to assign multiple client adapters to a single vhost adapter, but only the first client to be activated wins. The others will not be able to open their adapter, so will not see any disks and will fail to install.

Now, you should be able to activate the client partitions and install them. The whole magic is making sure you have the client and host adapters matched up correctly.

Hope this helps.

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install-mh

INSTALL-MH(8)							     [nmh-1.5]							     INSTALL-MH(8)

NAME

       install-mh - initialize the nmh environment

SYNOPSIS

       /usr/lib/mh/install-mh [-auto] [-check] [-version] [-help]

DESCRIPTION

       Install-mh  is  the  nmh program to create the initial setup for a first-time nmh user.	Install-mh lives in two places for historical rea-
       sons.

       The -auto option does things as automatically as possible and makes install-mh less chatty.

       The user is asked for the name of the directory that will be designated as the user's nmh directory.  If this directory does not exist, the
       user  is  asked	if  it should be created.  Normally, this directory should be under the user's home directory, and has the default name of
       ``Mail''.  Install-mh writes an initial .mh_profile for the user.

       As with all nmh commands, install-mh first checks for the existence of the $MH environment variable since that gives the  profile  path	if
       set.   If  it isn't set, the $HOME environment variable is consulted to determine the user's home directory.  If $HOME is not set, then the
       /etc/passwd file is consulted.

       When creating the users initial .mh_profile, install-mh will check for the existence of a global profile  /etc/nmh/mh.profile.	If  found,
       this will be used to initialize the new .mh_profile.

       The  -check  option can be used to check whether or not nmh has been installed.	This can be used by other programs to determine whether or
       not nmh has been installed without their having to know the internals of nmh.

FILES

       $HOME/.mh_profile	  The user profile
       /etc/nmh/mh.profile	  Used to initialize user profile

PROFILE COMPONENTS

       Path:		    To set the user's nmh directory

CONTEXT

       With -auto, the current folder is changed to "inbox".

MH.6.8								   11 June 2012 						     INSTALL-MH(8)