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Full Discussion: Create vhost in vios
Operating Systems AIX Create vhost in vios Post 302898698 by ibmtech on Wednesday 23rd of April 2014 11:03:20 AM
Old 04-23-2014
Alright,
You have to create a Virtual SCSI Adapter (both on VIOS and Client), the mapping is done by selecting the Server/Client virtual SCSI ID.

How you do it, from HMC, select VIO1 --> Configuration --> Manage profile --> (select the profile - generally default) --> Virtual Adapters --> Actions --> Create Virtual Adapter --> SCSI Adapter --> Select the Server ID and Client ID but make sure you check this (only selected client partition can connect) box. --> Click OK.
You can leave "This adapter is required for partition activation" blank.
This change is NOT reflected immediately, but when you reboot the VIOS, Its kind of a permanent change.

Then you do --> Dynamic Logical partitioning --> Virtual Adapters --> Actions --> Create Virtual Adapter --> SCSI Adapter --> <Do the same you did above in profile>.
Since your VIOS is up and running, you want to add the Adapter without rebooting VIOS, so you add it to VIO dynamically. This change is reflected immediately.

On the Client, you just do the Manage Profile (considering you are building the LPAR and more over with assumption that the disk is not added for it to boot - as you are using vscsi)

Now, login to VIO1 in CLI mode (putty or console).
As Prime Administrator (padmin) run the below
Code:
$ lsdev -slots
....
....
U9117.MMD.104F3F7-V1-C20     Virtual I/O Slot  UNKNOWN
....
....
$ cfgdev
....
....
U9117.MMD.104F3F7-V1-C20     Virtual I/O Slot  vhostX
....
....

Also considering that you have allocated disk to VIOS  to map it to client. Make sure you do the disk settings (as in algorithm, hcheck_interval, queue_depth, reserve_policy)> Now you can add this disk to LPAR.

$ mkvdev -vdev hdiskX -vadapter vhostX -dev <device name>
Note: Device name is any name of your choice for that target device on VIOS, check with peers and give a sensible name.

Repeat the same steps on other VIO (VIO2) and make sure from client you add the vscsi adapter to both VIOS.

I Hope this helps.
 

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LEARN ABOUT V7

bt

BT(4)							   BSD Kernel Interfaces Manual 						     BT(4)

NAME

     bt -- Buslogic/Mylex MultiMaster SCSI host adapter driver

SYNOPSIS

     To compile this driver into the kernel, place the following lines in your kernel configuration file:

	   device isa
	   device scbus
	   device bt

	   In /boot/device.hints:
	   hint.bt.0.at="isa"
	   hint.bt.0.port="0x330"

DESCRIPTION

     This driver provides access to the SCSI bus connected to a Buslogic/Mylex MultiMaster or compatible controller:

	   MultiMaster "W" Series Host Adapters:

	   Adapter   Bus   Commands  Description
	   BT-948    PCI     192     Ultra SCSI-3
	   BT-958    PCI     192     Wide ULtra SCSI-3
	   BT-958D   PCI     192     Wide Differential Ultra SCSI-3

	   MultiMaster "C" Series Host Adapters:

	   Adapter   Bus   Commands  Description
	   BT-946C   PCI     100     Fast SCSI-2
	   BT-956C   PCI     100     Wide Fast SCSI-2
	   BT-956CD  PCI     100     Wide Differential Fast SCSI-2
	   BT-445C   VLB     100     Fast SCSI-2
	   BT-747C   EISA    100     Fast SCSI-2
	   BT-757C   EISA    100     Wide Fast SCSI-2
	   BT-757CD  EISA    100     Wide Differential Fast SCSI-2
	   BT-545C   ISA      50     Fast SCSI-2
	   BT-540CF  ISA      50     Fast SCSI-2

	   MultiMaster "S" Series Host Adapters:

	   Adapter   Bus   Commands  Description
	   BT-445S   VLB      30     Fast SCSI-2
	   BT-747S   EISA     30     Fast SCSI-2
	   BT-747D   EISA     30     Differential Fast SCSI-2
	   BT-757S   EISA     30     Wide Fast SCSI-2
	   BT-757D   EISA     30     Wide Differential Fast SCSI-2
	   BT-545S   ISA      30     Fast SCSI-2
	   BT-542D   ISA      30     Differential Fast SCSI-2
	   BT-742A   EISA     30     SCSI-2 (742A revision H)
	   BT-542B   ISA      30     SCSI-2 (542B revision H)

	   MultiMaster "A" Series Host Adapters:

	   Adapter   Bus   Commands  Description
	   BT-742A   EISA     30     SCSI-2 (742A revisions A - G)
	   BT-542B   ISA      30     SCSI-2 (542B revisions A - G)

     Tagged queueing is supported on 'W' series adapters, 'C' series adapters with firmware of rev 4.42 and higher, and 'S' series adapters with
     firmware of rev 3.35 and higher.

     Boards with certain firmware revisions may lock up under heavy load to certain devices, especially if tagged queueing is used.  Should you
     encounter a problem with your adapter, contact Mylex technical support and ensure you have the latest firmware for your controller.

HARDWARE

     The bt driver supports the following BusLogic MultiMaster ``W'', ``C'', ``S'', and ``A'' series and compatible SCSI host adapters:

     o	 BusLogic BT-445C
     o	 BusLogic BT-445S
     o	 BusLogic BT-540CF
     o	 BusLogic BT-542B
     o	 BusLogic BT-542B
     o	 BusLogic BT-542D
     o	 BusLogic BT-545C
     o	 BusLogic BT-545S
     o	 BusLogic/BusTek BT-640
     o	 BusLogic BT-742A
     o	 BusLogic BT-742A
     o	 BusLogic BT-747C
     o	 BusLogic BT-747D
     o	 BusLogic BT-747S
     o	 BusLogic BT-757C
     o	 BusLogic BT-757CD
     o	 BusLogic BT-757D
     o	 BusLogic BT-757S
     o	 BusLogic BT-946C
     o	 BusLogic BT-948
     o	 BusLogic BT-956C
     o	 BusLogic BT-956CD
     o	 BusLogic BT-958
     o	 BusLogic BT-958D
     o	 Storage Dimensions SDC3211B / SDC3211F

     AMI FastDisk Host Adapters that are true BusLogic MultiMaster clones are also supported by the bt driver.

SEE ALSO

     cd(4), da(4), sa(4), scsi(4)

HISTORY

     The bt driver first appeared in the 386BSD patch kit.

AUTHORS

     Julian Elischer wrote a driver for the Multimaster cards that appeared in the 386BSD patch kit.  The driver was rewritten by Justin T. Gibbs
     to take advantage of new board features and work with the CAM SCSI framework in FreeBSD 3.0.

     Special thanks to Leonard N. Zubkoff for writing such a complete and well documented Mylex/BusLogic MultiMaster driver for Linux.	Support in
     this driver for the wide range of MultiMaster controllers and firmware revisions, with their otherwise undocumented quirks, would not have
     been possible without his efforts.

BSD
								   June 18, 2006							       BSD
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