CREATING AND ASSIGNING LV AS A DISK TO LPAR FROM VIO (STEP BY STEP SCREENSHOTS)

THIS DOCUMENT WILL PROVIDE YOU STEP BY STEP INFORMATION TO ASSIGN A LOGICAL VOLUME AS A DISK TO LPAR FROM A AVIO SERVER 

TABLE OF CONTENTS

CREATE A VSCSI SERVER ADAPTER ON THE VIO 

CREATE A VSCSI CLIENT ADAPTER ON THE CLIENT ADAPTER

MAP  LV AS A DISK TO THE ADAPTER

REMOVING DISK AND ADAPTER PROVIDED FROM VIO


 

On the vio server

Check status of virtual adapters before creating adapters

$ lsmap -all |grep vhost

vhost9 Available Virtual SCSI Server Adapter

vhost10 Available Virtual SCSI Server Adapter

vhost11 Available Virtual SCSI Server Adapter

vhost12 Available Virtual SCSI Server Adapter

vhost13 Available Virtual SCSI Server Adapter

vhost14 Available Virtual SCSI Server Adapter

vhost15 Available Virtual SCSI Server Adapter

vhost16 Available Virtual SCSI Server Adapter

vhost18 Available Virtual SCSI Server Adapter

vsa0 Available LPAR Virtual Serial Adapter 


 CREATE A SCSI SERVER ADAPTER ON THE VIO




To create a scsi server adapter we have to create a scsi adapter at vio server side

 In the hmc "server" section select the box on which you are going to do operation 
select the lpar from the list of lpars and click on the small arrow besides the lpar this arrow is a shortcut to the tasks option on the top 
From the DLPAR options select the virtual adapters

   

Select create

SCSI adapters

When we create a scsi server adapter we have to be carefull about the server adapter id this id will corrospond to the respective client adapter to which this adapter will serve . This is just like creating a target and a initiator where server adapter is target and client adapter is initiator 

 Note the server adapter ID , here 31 , While creating client adapter this id will be

used to create a mapping

 

Note :Scsi Server adapters can only be created on VIO server and client adapters can only

be created on client lpars

Check whether the new virtual adapter is available now  

$ lsmap -all |grep vhost

vhost14 Available Virtual SCSI Server Adapter

vhost15 Available Virtual SCSI Server Adapter

vhost16 Available Virtual SCSI Server Adapter

vhost17 Available Virtual SCSI Server Adapter

vhost18 Available Virtual SCSI Server Adapter

vhost19 Available Virtual SCSI Server Adapter

vsa0 Available LPAR Virtual Serial Adapter

# exit
We can see a new virtual adapter vhost19 which we created just now

Check for virtual target devices 

$ lsvg lpar_vg

VOLUME GROUP: lpar_vg         VG IDENTIFIER:00cf21f100004c000000011bda37a9cc

VG PERMISSION: read/write     TOTAL PPs: 2730(698880 megabytes)

MAX LVs: 512                  FREE PPs: 1098(281088 megabytes)

LVs: 6                        USED PPs: 1632(417792 megaby

Check what LV's are available on this VG 

 

$ lsvg -lv lpar_vg

lpar_vg:

LV NAME          TYPE   LPs   PPs    PVs  LV  STATE  MOUNTPOINT

D3-APP111-LV00   jfs   272   272     1  open/syncd  N/A

D4-APP109-LV00   jfs   272   272     1  open/syncd  N/A

D4-APP123-LV00   jfs   272   272     1  open/syncd  N/A

D3-APP112-LV00   jfs   272   272     1  open/syncd  N/A

D2-APP124-LV00   jfs   272   272     1  open/syncd  N/A

D2-APP110-LV00   jfs   272   272     1  open/syncd  N/A

Now we will create a LV named testlv in the VG lpar_vg , this lv will act as a disk device for the client LPAR

Create a logical volume ‘testlv’ in the lpar_vg 

Check the space availability in the vg

$ mklv -lv testlv lpar_vg 8

testlv

Now we will add a client adapter in the client LPAR  , note the server adapter id is the same , one we created above and the client adapter id is also same which was given above 
Add client scsi adapter on the Client lpar

  SELECT DYNAMIC LOGICAL PARTITIONING >>  SELECET VIRTUAL ADAPTERS

Now to verify the client adapter go to the client and run device configuration utility

Run cfg mgr on client

# cfgmgr 

Check the availability of adapter

# lsdev -Cc adapter

ent0           Available Logical Host Ethernet Port (lp-hea)

ent1           Available Logical Host Ethernet Port (lp-hea)

lhea0          Available Logical Host Ethernet Adapter (l-hea)

sissas0        Available 03-08 PCI-X266 Planar 3Gb SAS Adapter

sisscsia0      Available 00-08 PCI-XDDR Dual Channel Ultra320 SCSIAdapter

sisscsia1      Defined 07-08 PCI-XDDR Dual Channel Ultra320 SCSIAdapter

usbhc0         Available 04-08 USB Host Controller (33103500)

usbhc1         Available 04-09 USB Host Controller (33103500)

usbhc2         Available 04-0a USB Enhanced Host Controller (3310e000)

vsa0           Available LPAR Virtual Serial Adapter

vscsi0         Available Virtual SCSI Client Adapter

vscsi1         Available Virtual SCSI Client Adapter

vscsi2         Available Virtual SCSI Client Adapter

Now we can see the new adapter vscsi2 available at the client side 

For verification we are just showing what are the disks present at the client side 

 # lspv

hdisk0 00cf21f1258309f0 rootvg active

hdisk1 00cf21f12c59a36a rootvg active

hdisk2 00cf21f14e0d976f nimvg active

hdisk3 00cf21f14e0d9862 nimvg active

hdisk4 00cf21f1aaba221c nimvg active

hdisk5 00cf21f161c6a6c9 nimvg active

#

Now we will map testlv LV to the virtual adapter created above , check for any target device attached to the newly created virtual adapter vhost19 just for verification   
 
 

Map testlv to the new virtual adapter

CHECK THE DISK MAPPINGS OF NEWLY CREATED ADAPTER vscsi19

$ lsmap -vadapter vhost19

SVSA Physloc

Client Partition ID

--------------- -------------------------------------------- ----

--------------

vhost19 U9117.MMA.06F21F1-V7-C31

0x00000000

VTD NO VIRTUAL TARGET DEVICE FOUND

Run mkvdev command to created a virtual target device with virtual adapter

$ mkvdev -vdev testlv -vadapter vhost19

vtscsi0 Available

$ lsmap -all -field vtd

VTD D2-APP124-DSK0

VTD D2-APP110-DSK0

VTD D3-APP111-DSK0

VTD D3-APP112-DSK0

VTD D8-APP125-DSK0

VTD D9-APP122-DSK0

VTD D10-APP105-DSK0

VTD D4-APP109-DSK0 

Now goto client side and run device configuration utility . verify the new disk same size as of LV created at VIO server 

BEFORE cfgmgr 

# lspv

hdisk0 00cf21f1258309f0 rootvg active

hdisk1 00cf21f12c59a36a rootvg active

hdisk2 00cf21f14e0d976f nimvg active

hdisk3 00cf21f14e0d9862 nimvg active

hdisk4 00cf21f1aaba221c nimvg active

hdisk5 00cf21f161c6a6c9 nimvg active

run cfgmgr 
#cfgmgr

# bootinfo -s hdisk6

2048 

hdisk6 none None

Verify that the disk is of same space equivalent to lv

REMOVING DISK AND ADAPTER PROVIDED FROM VIO

Remove the disk at client side 

# rmdev -dl hdisk6

hdisk6 deleted

Remove the virtual scsi adapter at the client lpar 

rmvdev -vtd vtscsi0

vtscsi0 deleted

# rmvdev -vdev vscsi2

vscsi2 deleted

Remove the vadapter from the hmc from client side 

On vio server remove the virtual adapter and  target device 
  

 $ rmvdev -vdev testlv

Verify the removal

$ lsdev -virtual

name status description

ent2 Available Virtual I/O Ethernet Adapter (l-lan)

vasi0 Available Virtual Asynchronous Services

Interface (VASI)

vhost0 Available Virtual SCSI Server Adapter

vhost1 Available Virtual SCSI Server Adapter

vhost2 Available Virtual SCSI Server Adapter

vhost3 Available Virtual SCSI Server Adapter

vhost4 Available Virtual SCSI Server Adapter

vhost5 Available Virtual SCSI Server Adapter

vhost6 Available Virtual SCSI Server Adapter

vhost7 Available Virtual SCSI Server Adapter

vhost8 Available Virtual SCSI Server Adapter

Remove the adapter from the vio server from hmc