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CONFIGURING A VIRTUAL SCSI ADAPTER USING THE HMC


HOW TO





SUMMARY

How to create virtual SCSI adapters on PowerVM Virtual I/O Server (VIOS) and AIX
client using the HMC Classic GUI. This includes:
1. Creating the virtual SCSI Server adapter, which translates to a vhost# on the
VIOS and
2. Creating the virtual SCSI Client adapter, which equates to a vscsi# on AIX
OS.


OBJECTIVE

To create new virtual SCSI adapter on a running VIOS and AIX client.




STEPS

The following procedure uses Dynamic Logical Partition (DLPAR).  This HMC
function requires the VIOS and AIX client partitions to have network
connectivity and an active RMC connection.  

NOTE 1:

 * If the partition (VIOS or AIX) is not on the network or RMC is inactive, the
   adapter must be added to the partition's profile.  By HMC design, changes to
   a partition's profile require the partition to be reactivated (Shutdown;
   Activate) for the profile changes to take effect.  
 * For single VIOS environments where DLPAR operation is not possible (due to
   lack of network or inactive RMC), a maintenance window will be required to
   shutdown all the clients prior to reactivating the VIOS.
 * For dual VIOS environments, ensure the clients' storage and network are fully
   redundant via the second VIOS prior reactivating the VIOS in question.

In this example, we will create virtual Server SCSI adapter ID 22 on VIOS
partition, p7virtvios1 (LPAR ID 2) to connect with virtual Client SCSI adapter
ID 10 on AIX partition, virt07-Margarita (LPAR ID 12 decimal/hex C).

PART 1 - Creating the virtual Server SCSI adapter

1.  Login to the HMC Classic GUI as hscroot.
2.  In the navigation area, open Systems Management and select Servers.
3.  Select the managed server of your choice in the navigation area.
4.  Select the Virtual I/O Server, click Tasks > Dynamic Partitioning > Virtual
Adapters.
5.  From the Virtual Adapters window, click Actions > Create Virtual Adapter >
SCSI Adapter.  The SCSI Server Adapter Properties window is shown.
6.  Specify the adapter ID and your connection preferences (client partition and
client adapter ID) to use for this virtual SCSI adapter.  Notes:

 * You can use any slot number from 2 up to (but not including) the maximum
   number of virtual adapters. (Slots 0 and 1 are reserved for system-created
   virtual adapters. If the logical partition is a Virtual I/O Server logical
   partition, other slot numbers might also be reserved.) For example, if the
   maximum number of virtual adapters is 10, and the logical partition is not a
   Virtual I/O Server logical partition, you can use any slot number from 2 to
   9. By default, the system displays the lowest unused slot number for this
   logical partition.
 * You cannot use a slot number that was used for any other virtual adapter on
   the same logical partition.

To list the adapter IDs currently in used on the VIOS, login to the VIOS as
padmin and run:
$ lsdev -slots          where C## is an adapter ID in use as shown below



In this example, we will create adapter ID 22 to connect to client SCSI adapter
ID 10 (to be created next) on AIX partition, virt07-Margarita as shown below:



7. Click OK to create > click OK again to apply the change (dynamically).  At
this point, you can expect to see the newly configured virtual server SCSI
adapter, vhost12, in this case:



"lsmap -vadapter vhost#" can be used to display the new virtual Sever SCSI
adapter mapping:



Note: lsmap displays the Client Partition ID in hexadecimal value (c, this
case), whereas the HMC displays decimal value (12).

8.  Update the VIOS partition's profile with the new virtual SCSI adapter: (You
must update the logical partition profile so that the next time it is activated
(Shutdown; Activate), the new virtual SCSI adapter is not lost.)

    a.  Select the Virtual I/O Server partition, click Tasks > Configuration >
Save Current Configuration.
    b. Either Overwrite existing profile or save the changes to a New profile.
    c. Click OK.

 


CREATING THE VIRTUAL CLIENT SCSI ADAPTER

9.  Select the client partition, click Tasks > Dynamic Partitioning > Virtual
Adapters.  (The Adapter ID column shows the client adapter IDs currently in
use).

10.  From the Virtual Adapters window, click Actions > Create Virtual Adapter >
SCSI Adapter.  The SCSI Client Adapter Properties window is shown.
11.  Specify the client adapter ID, Server (VIOS) partition, and Server Adapter
ID.  Note: This information must match what was specified in step 6.  In our
example, we used client adapter ID 10, Server (VIOS) partition, p7virtvios1,
Server (VIOS) adapter ID, 22:



Ensure the virtual Server and Client SCSI adapter information cross-reference
each other.  Below is a comparison of our example:



12.  Click OK to create > click OK again to apply the change (dynamically). 
13.  Login to the AIX client, as root, and run cfgmgr to discover the newly
created virtual Client SCSI adapter:
     # cfgmgr
14. Verify the expected virtual client SCSI adapter ID was discovered on the AIX
client.  In this case, vscsi3 was configured at adapter ID C10:
     # lscfg -v|grep vscsi



If the new virtual SCSI client adapter was created on an IBM i or Linux
partition, and you have questions specific to the client OS, please, contact
your local client OS Support team.

 

 

 

 


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w\/TPS"},"Product":{"code":"SSPHKW","label":"PowerVM Virtual I\/O
Server"},"Component":"","Platform":[{"code":"PF002","label":"AIX"}],"Version":"PowerVM
VIOS 2.2","Edition":"Express;Standard;Enterprise","Line of
Business":{"code":"LOB57","label":"Power"}}]


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DOCUMENT INFORMATION

More support for:
PowerVM Virtual I/O Server

Software version:
PowerVM VIOS 2.2

Operating system(s):
AIX

Document number:
731029

Modified date:
20 October 2021


UID

ibm10731029

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