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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vparremove

vparremove(1M)															    vparremove(1M)

NAME

       vparremove - remove a virtual partition

SYNOPSIS

       vp_name db_file]

DESCRIPTION

       The command deletes a virtual partition previously created using the command.  All resources associated with the virtual partition are made
       available for allocation to other partitions.

       Unintentional use of this command has serious consequences; therefore the user is prompted to confirm  the  operation  unless  the  (force)
       option is specified.

   Options
       recognizes the following command line options and arguments:

       Specifies the unique name of the virtual partition which
		      is to be removed.  Required.

       Removes a virtual partition from the partition database
		      contained  in  db_file.	If  this option is omitted, the virtual partition is removed from the monitor's database.  In this
		      case, the partition must be in the state to be removed.  Thus it is an error to try to remove the current virtual partition,
		      the one in which the command is executing.

       Specifies the force option.
		      Omits  the  confirmation dialog before removing the virtual partition.  This option is intended for use by scripts and other
		      non-interactive applications.

SECURITY RESTRICTIONS

       This command is restricted to processes owned by superuser.

       When virtual partition flexible administrative capability is enabled, a virtual partition can only be removed  from  within  a  Designated-
       Admin vPar.

RETURN VALUE

       The command exits with one of the following values:

       Successful completion.
       One or more error conditions occurred.

EXAMPLES

       Destroy the virtual partition in the partition database currently running in the monitor:

       Destroy the virtual partition in the partition database currently running in the monitor using the force option:

       Delete partition in partition database file

ERRORS

       displays error messages on standard error for any of the following conditions:

	      o  db_file does not exist, cannot be accessed, is not a virtual partition database file, or is corrupt.

	      o  vp_name does not exist in the monitor's database or in db_file.

	      o  vp_name in the monitor's database is in some state other than

	      o  The command and the virtual partition monitor are at different revision levels.

	      o  When  the  virtual  partition	flexible administrative capability is enabled and the local virtual partition is not a Designated-
		 Admin vPar.

AUTHOR

       was developed by the Hewlett-Packard Company.

SEE ALSO

       vparadmin(1M), vparboot(1M), vparconfig(1M), vparcreate(1M), vpardump(1M), vparefiutil(1M), vparenv(1M),  vparextract(1M),  vparmodify(1M),
       vparreloc(1M), vparreset(1M), vparstatus(1M), vparutil(1M), vparresources(5), vpartition(5), vpmon(5).

																    vparremove(1M)