Creating a SEA in a VIO

Contents

·         1 Creating a SEA in a VIO

o    1.1 Get the list of current devices in VIOs

o    1.2 Get the current slot information

o    1.3 Create SEA

o    1.4 verify the virtual device

o    1.5 Get attributes of the SEA

o    1.6 Assigin an IP to SEA adaper

o    1.7 get routing table

·         2 Comments

Creating a SEA in a VIO

We will see how to create a SEA to bridge packets to client LPAR

Get the list of current devices in VIOs

$ lsdev -type adapter

name             status      description

ent0             Available   2-Port 10/100/1000 Base-TX PCI-Express Adapter (14104003)

ent1             Available   2-Port 10/100/1000 Base-TX PCI-Express Adapter (14104003)

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

fcs0             Available   8Gb PCI Express Dual Port FC Adapter (df1000f114108a03)

fcs1             Available   8Gb PCI Express Dual Port FC Adapter (df1000f114108a03)

pager0           Available   Pager Kernel Extension

vasi0            Available   Virtual Asynchronous Services Interface (VASI)

vbsd0            Available   Virtual Block Storage Device (VBSD)

vhost0           Available   Virtual SCSI Server Adapter

vsa0             Available   LPAR Virtual Serial Adapter

As seen above the VIOS already has a Virtual device and Physical device for bridging. If there are no virtual devices, we can create one from HMC

If you are adding a new device use 'cfgmgr' to 'see' the new device

Note down the names of the adapters needed to bridging

Here we have

Physical: ent0 Virtual: ent2

make sure that the physical interface properties are proper (Ex. Duplex, speed etc...)

If any of the interface has IP configuration, use 'rmtcpip' to remove them

Get the current slot information

$ lsdev -slots

# Slot                       Description       Device(s)

U8233.E8B.1000A1P-V7-C0      Virtual I/O Slot  vsa0

U8233.E8B.1000A1P-V7-C11     Virtual I/O Slot  ent2

U8233.E8B.1000A1P-V7-C12     Virtual I/O Slot  vhost0

U8233.E8B.1000A1P-V7-C32769  Virtual I/O Slot  vasi0

Create SEA

$ mkvdev -sea ent0 -vadapter ent2 -defaultid 7 -default ent2                    

ent3 Available                                                                  

en3                                                                             

et3          

details

§  -sea -- the physical adapter on which to create SEA

§  -vadapter -- the virtual adapter on which to create SEA (can give multiple virtual adapters)

§  -default -- the vitual adapter to use as default adapter

§  -defaultid -- The PVID to use for the SEA. (PVID for the SEA)

The additional VID will be automatically added by VIO, based on the virtual adapters.

verify the virtual device

$ lsdev -virtual                                                                

name             status      description                                        

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

vasi0            Available   Virtual Asynchronous Services Interface (VASI)     

vbsd0            Available   Virtual Block Storage Device (VBSD)                

vhost0           Available   Virtual SCSI Server Adapter                        

vsa0             Available   LPAR Virtual Serial Adapter                        

ent3             Available   Shared Ethernet Adapter                            

$ lsdev -type adapter

name             status      description

ent0             Available   2-Port 10/100/1000 Base-TX PCI-Express Adapter (14104003)

ent1             Available   2-Port 10/100/1000 Base-TX PCI-Express Adapter (14104003)

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

ent3             Available   Shared Ethernet Adapter

fcs0             Available   8Gb PCI Express Dual Port FC Adapter (df1000f114108a03)

fcs1             Available   8Gb PCI Express Dual Port FC Adapter (df1000f114108a03)

pager0           Available   Pager Kernel Extension

vasi0            Available   Virtual Asynchronous Services Interface (VASI)

vbsd0            Available   Virtual Block Storage Device (VBSD)

vhost0           Available   Virtual SCSI Server Adapter

vsa0             Available   LPAR Virtual Serial Adapter

Get attributes of the SEA

$ lsdev -dev ent3 -attr

attribute     value    description                                                        user_settable

accounting    disabled Enable per-client accounting of network statistics                 True

ctl_chan               Control Channel adapter for SEA failover                           True

gvrp          no       Enable GARP VLAN Registration Protocol (GVRP)                      True

ha_mode       disabled High Availability Mode                                             True

jumbo_frames  no       Enable Gigabit Ethernet Jumbo Frames                               True

large_receive no       Enable receive TCP segment aggregation                             True

largesend     0        Enable Hardware Transmit TCP Resegmentation                        True

netaddr       0        Address to ping                                                    True

pvid          7        PVID to use for the SEA device                                     True

pvid_adapter  ent2     Default virtual adapter to use for non-VLAN-tagged packets         True

qos_mode      disabled N/A                                                                True

real_adapter  ent0     Physical adapter associated with the SEA                           True

thread        1        Thread mode enabled (1) or disabled (0)                            True

virt_adapters ent2     List of virtual adapters associated with the SEA (comma separated) True

Assigin an IP to SEA adaper

This is not necessary. You can create a another virtual adapter on the same VLAN on the SEA's PVID or vid, then assign an IP to it

$ mktcpip -hostname sys414_vios7 -interface en3 \                               

> -inetaddr 10.6.133.142 -netmask 255.255.255.0 \                               

> -gateway 10.6.133.254                          

you can try and ping an ip within your network to verify connectivity

get routing table

# netstat -rn

Routing tables

Destination        Gateway           Flags   Refs     Use  If   Exp  Groups

Route Tree for Protocol Family 2 (Internet):

default            10.6.133.254      UG        1        61 en3      -      -

10.6.133.0         10.6.133.142      UHSb      0         0 en3      -      -   =>

10.6.133/24        10.6.133.142      U         2        29 en3      -      -

10.6.133.142       127.0.0.1         UGHS      0         2 lo0      -      -

10.6.133.255       10.6.133.142      UHSb      0         0 en3      -      -

127/8              127.0.0.1         U         2        77 lo0      -      -

Route Tree for Protocol Family 24 (Internet v6):

::1                ::1               UH        0        54 lo0      -      -

or use 'lstcpip -routtable' as padmin

Create an VSCSI disk in AIX VIO

Configuring iSCSI target using 'targetcli' > Configuring packet forwarding > Configuring postfix for first time > Create a new database in mysql> Create an VSCSI disk in AIX VIO

VSCSI is required to map disk to client LPARs

VIOS will 'own' the physical resource. The VIOS will present an virtual resource (virtual target device) to the LPAR. This virtual device is backed by a physical device

We need a virtual SCSI adapter in VIOS and client LPAR for presenting a disk to client LPAR. This relationship is one-to-one. That is, for every LPAR, there must be 2 virtual SCSI adapters. Once in VIOS and one in client LPAR 

VIO scsi

Contents

·         1 Get a list of scsi adapters

·         2 Get SCSI Mapping

·         3 get list of disks

·         4 Get the size of the disk

·         5 Get the LUN id of the disk

·         6 Get the VPD of the disk

·         7 Change the reserve policy

·         8 Create a Virtual target device

·         9 get the device mapping details

·         10 (Optional) create an LPAR

o    10.1 Comments

Get a list of scsi adapters

$ lsdev -type adapter

name             status      description

ent0             Available   2-Port 10/100/1000 Base-TX PCI-Express Adapter (14104003)

ent1             Available   2-Port 10/100/1000 Base-TX PCI-Express Adapter (14104003)

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

ent3             Available   Shared Ethernet Adapter

fcs0             Available   8Gb PCI Express Dual Port FC Adapter (df1000f114108a03)

fcs1             Available   8Gb PCI Express Dual Port FC Adapter (df1000f114108a03)

pager0           Available   Pager Kernel Extension

vasi0            Available   Virtual Asynchronous Services Interface (VASI)

vbsd0            Available   Virtual Block Storage Device (VBSD)

vhost0           Available   Virtual SCSI Server Adapter

vsa0             Available   LPAR Virtual Serial Adapter

$ lsdev -virtual | grep -i scsi

vhost0           Available   Virtual SCSI Server Adapter

Get SCSI Mapping

$ lsmap -all

SVSA            Physloc                                      Client Partition ID

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

vhost0          U8233.E8B.1000A1P-V7-C12                     0x00000000

VTD                   NO VIRTUAL TARGET DEVICE FOUND

$

get list of disks

$ lsdev -type disk

name             status      description

hdisk0           Available   MPIO Other FC SCSI Disk Drive

hdisk1           Available   MPIO Other FC SCSI Disk Drive

hdisk2           Available   MPIO Other FC SCSI Disk Drive

hdisk3           Available   MPIO Other FC SCSI Disk Drive

hdisk4           Available   MPIO Other FC SCSI Disk Drive

hdisk5           Available   MPIO Other FC SCSI Disk Drive

hdisk6           Available   MPIO Other FC SCSI Disk Drive

hdisk7           Available   MPIO Other FC SCSI Disk Drive

$

we will use hdisk1 for this example

Get the size of the disk

echo "bootinfo -s hdisk1 " | oem_setup_env

Get the LUN id of the disk

$ lsdev -dev hdisk1 -attr

attribute       value                                               description                      user_settable

PCM             PCM/friend/fcpother                                 Path Control Module              False

algorithm       fail_over                                           Algorithm                        True

clr_q           no                                                  Device CLEARS its Queue on error True

dist_err_pcnt   0                                                   Distributed Error Percentage     True

dist_tw_width   50                                                  Distributed Error Sample Time    True

hcheck_cmd      test_unit_rdy                                       Health Check Command             True

hcheck_interval 60                                                  Health Check Interval            True

hcheck_mode     nonactive                                           Health Check Mode                True

location                                                            Location Label                   True

lun_id          0x1000000000000                                     Logical Unit Number ID           False

lun_reset_spt   yes                                                 LUN Reset Supported              True

max_retry_delay 60                                                  Maximum Quiesce Time             True

max_transfer    0x40000                                             Maximum TRANSFER Size            True

node_name       0x500507680100b855                                  FC Node Name                     False

pvid            none                                                Physical volume identifier       False

q_err           yes                                                 Use QERR bit                     True

q_type          simple                                              Queuing TYPE                     True

queue_depth     1                                                   Queue DEPTH                      True

reassign_to     120                                                 REASSIGN time out value          True

reserve_policy  single_path                                         Reserve Policy                   True

rw_timeout      30                                                  READ/WRITE time out value        True

scsi_id         0x4d0d25                                            SCSI ID                          False

start_timeout   60                                                  START unit time out value        True

unique_id       3321360050768019102C0F000000000032F7904214503IBMfcp Unique device identifier         False

ww_name         0x500507680140b855                                  FC World Wide Name               False

Note the 'lun_id' value.

Get the VPD of the disk

$ lsdev -dev hdisk1 -vpd

  hdisk1           U5877.001.M09J131-P1-C6-T1-W500507680140B855-L1000000000000  MPIO Other FC SCSI Disk Drive

        Manufacturer................IBM

        Machine Type and Model......2145

        ROS Level and ID............30303030

        Serial Number...............2145

        Device Specific.(Z0)........0000063268181002

        Device Specific.(Z1)........

        Device Specific.(Z2)........

        Device Specific.(Z3)........

  PLATFORM SPECIFIC

  Name:  disk

    Node:  disk

    Device Type:  block

Change the reserve policy

$ chdev -dev hdisk1 -attr reserve_policy=no_reserve

hdisk1 changed

verify

$ lsdev -dev hdisk1 -attr | grep -i reserve_policy

reserve_policy  no_reserve                                          Reserve Policy                   True

Create a Virtual target device

$ mkvdev -vdev hdisk1 -vadapter vhost0 -dev sys414_lpar7

sys414_lpar7 Available

Details

§  -vdev -- the backing devic for the vdev

§  -vadapter -- the virtual adapter on the VIO to bind the vscsi disk

§  -dev -- the virtual device name that you want to assign

get the device mapping details

$ lsmap -vadapter vhost0

SVSA            Physloc                                      Client Partition ID

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

vhost0          U8233.E8B.1000A1P-V7-C12                     0x00000000

VTD                   sys414_lpar7

Status                Available

LUN                   0x8100000000000000

Backing device        hdisk1

Physloc               U5877.001.M09J131-P1-C6-T1-W500507680140B855-L1000000000000

(Optional) create an LPAR

Create an LPAR.. Follow the Wizzard...

When it asks for the virtual devices.. create a new Vitual SCSI device. Assign the server's virtual SCSI ID to this Virtual SCSI's 'Server Adapter id'

Example: