TANTI TECHNOLOGIES

Tuesday, 19 November 2013

Creating DVD Repository (VIOS)

Create an iso from DVD

# dd if=/dev/cd0 of=AIX_6100.iso bs=1m ⤶

# dd if=/dev/cd0 of=AIX_6100.iso bs=1024 ⤶

Let’s check, if there already a repository in our VIO server.

$ lsrep ⤶

Let's check available storage pools. Will tells you how much rootvg have space.

$ lssp ⤶

Creating repository of 5GB

$ mkrep -sp rootvg -size 5G ⤶

Changing Size by 2 GB

$ chrep –size 2G ⤶

Verify

$ lsrep ⤶

$ ls -ltr ⤶

Creating the Virtual Optical Device

Creating optical disk load our AIX 6.1 ISO image into the repository. It is assume that AIX_6100.iso has already been created and transferred to VIO server. In my case I have already created ISO image using ROXIO Image creator.

$ mkvopt -name AIX61 -file AIX_6100.iso -ro ⤶

Deleting Optical disk (If required..)

$ rmvopt -name AIX61 ⤶

To use the AIX DVD for installing an LPAR we need to connect a virtual optical device to the virtual SCSI host adapter (vhost8) here of the LPAR. Note: A vtoptX will be created. Use e.g. vtopt0 in the next step.

$ mkvdev -fbo -vadapter vhost8 ⤶

vtopt0 Available

$ lsvopt ⤶ Verify

$ loadopt -disk AIX61 -vtd vtopt0 ⤶

$ lsrep ⤶

$ lsmap -vadapter vhost8 ⤶

Cleaning up

unload the AIX DVD from the virtual drive

$ unloadopt -vtd vtopt0 ⤶

$ unloadopt -release -vtd vtopt0 ⤶

$ lsrep ⤶

Deleting VTD

$ rmvdev -vtd vtopt0 ⤶

=============== ================ =============

Example

$ pwd

/home/padmin

Check DVD repository already exist?

$ lsrep

The DVD repository has not been created yet.

$ df -g

Filesystem GB blocks Free %Used Iused %Iused Mounted on

/dev/hd4 0.25 0.17 32% 5722 13% /

/dev/hd2 3.25 0.70 79% 55344 25% /usr

/dev/hd9var 0.75 0.53 30% 6618 6% /var

/dev/hd3 3.50 3.49 1% 87 1% /tmp

/dev/hd1 16.00 2.01 88% 49 1% /home

/dev/hd11admin 0.12 0.12 1% 5 1% /admin

/proc - - - - - /proc

/dev/hd10opt 1.12 0.32 72% 8447 10% /opt

/dev/livedump 0.25 0.25 1% 4 1% /var/adm/ras/livedump

Let’s create Media repository initially of 5G.

$ mkrep -sp rootvg -size 5G

Virtual Media Repository Created

Repository created within "VMLibrary" logical volume

Verify (A file system of /var/vio/VMLibrary will be created)

$ df -g

Filesystem GB blocks Free %Used Iused %Iused Mounted on

/dev/hd4 0.25 0.17 32% 5724 13% /

/dev/hd2 3.25 0.70 79% 55344 25% /usr

/dev/hd9var 0.75 0.53 30% 6620 6% /var

/dev/hd3 3.50 3.49 1% 87 1% /tmp

/dev/hd1 16.00 2.01 88% 49 1% /home

/dev/hd11admin 0.12 0.12 1% 5 1% /admin

/proc - - - - - /proc

/dev/hd10opt 1.12 0.32 72% 8447 10% /opt

/dev/livedump 0.25 0.25 1% 4 1% /var/adm/ras/livedump

/dev/VMLibrary 5.00 4.98 1% 4 1% /var/vio/VMLibrary

Let’s change the size by adding 2G more

$ chrep -size 2G

Verify

$ df -g

Filesystem GB blocks Free %Used Iused %Iused Mounted on

/dev/hd4 0.25 0.17 32% 5724 13% /

/dev/hd2 3.25 0.70 79% 55344 25% /usr

/dev/hd9var 0.75 0.53 30% 6620 6% /var

/dev/hd3 3.50 3.49 1% 87 1% /tmp

/dev/hd1 16.00 2.01 88% 49 1% /home

/dev/hd11admin 0.12 0.12 1% 5 1% /admin

/proc - - - - - /proc

/dev/hd10opt 1.12 0.32 72% 8447 10% /opt

/dev/livedump 0.25 0.25 1% 4 1% /var/adm/ras/livedump

/dev/VMLibrary 7.00 6.97 1% 4 1% /var/vio/VMLibrary

If for any reason, you want to remove the Virtual Media Repository

$ rmrep -f

Virtual Media Repository Removed

$ pwd

/home/padmin

The following images, I would like to load….

$ ls -ltr

total 29329392

drwxrwxr-- 2 root staff 256 Apr 09 2010 config

drwxr-xr-x 3 padmin staff 256 Apr 21 2010 tivoli

-rw-r--r-- 1 root staff 3857645568 Sep 18 19:37 aix61image.iso

-rw-r--r-- 1 root staff 4180508672 Sep 18 19:59 aix53image.iso

-rw-r--r-- 1 root staff 3265789952 Sep 20 18:47 aix71image.iso

-rw-r--r-- 1 padmin staff 3726 Dec 16 12:05 smit.transaction

-rw-r--r-- 1 padmin staff 1376 Dec 16 12:05 smit.script

-rw-r--r-- 1 padmin staff 17067 Dec 16 12:05 smit.log

-rw-r----- 1 padmin staff 3712652992 Feb 09 13:28 aix52image.iso

-rw-r--r-- 1 root staff 17009 Feb 10 18:21 ioscli.log

In my case, to load all 3 images, 15G size required.

$ chrep -size 8G

$ df -g

Filesystem GB blocks Free %Used Iused %Iused Mounted on

/dev/hd4 0.25 0.17 32% 5724 13% /

/dev/hd2 3.25 0.70 79% 55344 25% /usr

/dev/hd9var 0.75 0.53 30% 6620 6% /var

/dev/hd3 3.50 3.49 1% 87 1% /tmp

/dev/hd1 16.00 2.01 88% 49 1% /home

/dev/hd11admin 0.12 0.12 1% 5 1% /admin

/proc - - - - - /proc

/dev/hd10opt 1.12 0.32 72% 8447 10% /opt

/dev/livedump 0.25 0.25 1% 4 1% /var/adm/ras/livedump

/dev/VMLibrary 15.00 4.00 74% 7 1% /var/vio/VMLibrary

$ mkvopt -name aix53 -file aix53image.iso -ro

Rip the current phsyical CD/DVD in to the Library with name AIX61.iso

$ mkvopt –name AIX61.iso –file –dev cd0 -ro

$ mkvopt -name aix71 -file aix71image.iso -ro

$ df -g

Filesystem GB blocks Free %Used Iused %Iused Mounted on

/dev/hd4 0.25 0.17 32% 5724 13% /

/dev/hd2 3.25 0.70 79% 55344 25% /usr

/dev/hd9var 0.75 0.53 30% 6620 6% /var

/dev/hd3 3.50 3.49 1% 87 1% /tmp

/dev/hd1 16.00 2.01 88% 49 1% /home

/dev/hd11admin 0.12 0.12 1% 5 1% /admin

/proc - - - - - /proc

/dev/hd10opt 1.12 0.32 72% 8447 10% /opt

/dev/livedump 0.25 0.25 1% 4 1% /var/adm/ras/livedump

/dev/VMLibrary 15.00 0.95 94% 8 1% /var/vio/VMLibrary

Create a virtual optical Device (vhost0 already in the LPAR)

$ mkvdev -fbo -vadapter vhost0

vtopt0 Available

$ mkvdev -fbo -vadapter vhost0

vtopt1 Available

$ mkvdev -fbo -vadapter vhost0

vtopt2 Available

Verify that virtual optical device created

$ lsmap -vadapter vhost0

SVSA Physloc Client Partition ID

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

vhost0 U9133.55A.06BF1CG-V1-C2 0x00000002

VTD vtopt0

Status Available

LUN 0x8200000000000000

Backing device

Physloc

VTD vtopt1

Status Available

LUN 0x8300000000000000

Backing device

Physloc

VTD vtopt2

Status Available

LUN 0x8400000000000000

Backing device

Physloc

VTD vtscsi0

Status Available

LUN 0x8100000000000000

Backing device hdisk1

Physloc U787B.001.DNW8891-P1-T14-L4-L0

Loading the Library Media (e.g aix53, aix61 and aix71) into the LPAR device

$ loadopt -disk aix53 -vtd vtopt0

$ loadopt -disk aix61 -vtd vtopt1

$ loadopt -disk aix71 -vtd vtopt2

If you want to undo or unload

$ unloadopt –vtd vtoptX

Verify

$ lsmap -vadapter vhost0

SVSA Physloc Client Partition ID

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

vhost0 U9133.55A.06BF1CG-V1-C2 0x00000002

VTD vtopt0

Status Available

LUN 0x8200000000000000

Backing device /var/vio/VMLibrary/aix53

Physloc

VTD vtopt1

Status Available

LUN 0x8300000000000000

Backing device /var/vio/VMLibrary/aix61

Physloc

VTD vtopt2

Status Available

LUN 0x8400000000000000

Backing device /var/vio/VMLibrary/aix71

Physloc

VTD vtscsi0

Status Available

LUN 0x8100000000000000

Backing device hdisk1

Physloc U787B.001.DNW8891-P1-T14-L4-L0

List the virtual image loaded

$ lsdev –dev vopt0 –attr

$ lsrep

Size(mb) Free(mb) Parent Pool Parent Size Parent Free

16318 1996 rootvg 139776 23040

Name File Size Optical Access

aix53 3987 vtopt0 ro

aix61 3679 vtopt1 ro

aix71 3115 vtopt2 ro

On Client LPAR

· Boot LPAR from virtual CD to install the OS

· Or to access the virtual CD/DVD

· Use: cfgmgr to find the new device

· Mount the CD/DVD just as you would a physical device

How to Setup SEA Failover on DUAL VIO servers

Question

How do I setup SEA failover on DUAL VIO servers (VIOS)?
This document describes some general concepts related to Shared Ethernet Adapter (SEA), and the procedure to configure SEA Failover.

Cause

The SEA failover fails or creates a network storm after it is created.

Answer

Shared Ethernet Adapter

A Shared Ethernet Adapter can be used to connect a physical network to a virtual Ethernet network. It provides the ability for several client partitions to share one physical adapter. SEA can only be configured on the Virtual I/O server (VIOS) and requires the POWER Hypervisor and Advanced POWER Virtualization feature. The SEA, hosted on the Virtual I/O server, acts as a Layer-2 bridge between the internal and external network.

Restrictions with Configuring SEA Failover

· It can only be hosted on the VIOS and not on the client partition.

· The VIOS running Integrated Virtualization Manager (IVM) cannot implement SEA Failover because only one single VIOS can be configured on the P5/P6 with IVM.

· SEA Failover was introduced with Fixpack 7 (Virtual I/O server version 1.2), so both Virtual I/O Servers need to be at this minimum level.

Requirements for Configuring SEA Failover

· One SEA on one VIOS acts as the primary (active) adapter and the second SEA on the second VIOS acts as a backup (standby) adapter.

· Each SEA must have at least one virtual Ethernet adapter with the “Access external network” flag (previously known as “trunk” flag) checked. This enables the SEA to provide bridging functionality between the two VIO servers.

· This adapter on both the SEAs has the same PVID, but will have a different priority value.

· A SEA in ha_mode (Failover mode) might have more than one trunk adapters, in which case all should have the same priority value.

· The priority value defines which of the two SEAs will be the primary and which will be the backup. The lower the priority value, the higher the priority, e.g. an adapter with priority 1 will have the highest priority.

· An additional virtual Ethernet adapter , which belongs to a unique VLAN on the system, is used to create the control channel between the SEAs, and must be specified in each SEA when configured in ha_mode.

· The purpose of this control channel is to communicate between the two SEA adapters to determine when a fail over should take place.

NOTE: If the SEA Failover will be using etherchannel as the physical device, configure the switch ports for etherchannel PRIOR to configuring the etherchannel device on the VIO server. Failure to follow this sequence may result in a network storm.

PROCEDURE:

1. Create a virtual adapter to be used in the SEA adapter on VIOS1. EX: (ent2).

To configure a virtual Ethernet adapter via Dynamic Logical Partition (DLPAR) for a running logical partition using HMC V7R3, follow these steps:

Note: a DLPAR operation requires the partition to be on the network.

I. In the navigation panel, open Systems Management, open Servers, and click on the managed system on which the logical partition is located.

II. In the contents panel, select the VIOS on which you want to configure the virtual Ethernet adapter, click on the Tasks button -> choose Dynamic Logical Partitioning -> Virtual Adapters.

III. Click Actions -> Create -> Ethernet Adapter.

IV. Enter the slot number for the virtual Ethernet adapter into Adapter ID.

V. Enter the Port Virtual LAN ID (PVID) for the virtual Ethernet adapter into VLAN ID. The PVID allows the virtual Ethernet adapter to communicate with other virtual Ethernet adapters that have the same PVID.

Note: Give the virtual adapter a unique VLAN ID (PVID): "1"

VI. Select IEEE 802.1 compatible adapter if you want to configure the virtual Ethernet adapter to communicate over multiple virtual LANs. If you leave this option unchecked and you want this partition to connect to multiple virtual networks, then you must create multiple virtual adapters by creating additional virtual LAN IDs.

VII. Check the box "access external network".

VIII. Give the virtual adapter a low trunk priority. EX: "1"

IX. Click OK.

NOTE !!

After you have finished, access any existing partition profiles for the logical partition and add the same virtual ethernet adapters to those partitions profiles. The dynamic virtual ethernet adapter will be lost if you shut down the logical partition and activate that logical partition using a partition profile that does not have the new virtual ethernet adapter in it.

2. Create another virtual adapter to be used as a Control Channel on VIOS1. EX: (ent3)

a. Give this new virtual adapter another unique VLAN ID (PVID) EX: "99"
b. Do NOT check the box "access external network".
c. Shutdown, Activate VIOS1 or run cfgdev from VIOS command line if created with DLPAR.

3. Create SEA on VIO server 1 with failover attribute:

$ mkvdev -sea ent0 -vadapter ent2 -default ent2 -defaultid 1 -attr ha_mode=auto ctl_chan=ent3

Note: The defaultid value of the SEA should be the Port VLAN ID (PVID) of the default trunk adapter, in case there are more than one trunk adapters configured in the SEA.

4. (OPTIONAL) Assign an ip address to SEA on VIOS1:

$ mktcpip -hostname vio1 -interface en4 -inetaddr 9.3.5.136 -netmask 255.255.255.0 -gateway 9.3.5.41 -nsrvaddr 9.3.4.2 -nsrvdomain itsc.austin.ibm.com -start

5. Create a virtual adapter to be used in the SEA adapter on VIOS2. EX: (ent2)

a. Give the virtual adapter the same VLAN ID (PVID) as VIOS1. EX: "1" .
b. Check the box "access external network".
c. Give the virtual adapter a higher trunk priority. EX: "2"

6. Create another virtual adapter to be used as a Control Channel on VIOS2. EX: (ent3):

a. Give this new virtual adapter the same unique VLAN ID (PVID) as the control channel on VIOS1. EX: "99"
b. Do NOT check the box "access external network".
c. Shutdown, Activate VIOS2 or run cfgdev from VIOS command line if created with DLPAR.

7. Create SEA on VIOS2 with failover attribute:

$ mkvdev -sea ent0 -vadapter ent2 -default ent2 -defaultid 1 -attr ha_mode=auto ctl_chan=ent3

8. (OPTIONAL) Assign an ip address to SEA on VIOS2:

$ mktcpip -hostname vio2 -interface en4 -inetaddr 9.3.5.137 -netmask 255.255.255.0 -gateway 9.3.5.41 -nsrvaddr 9.3.4.2 -nsrvdomain itsc.austin.ibm.com -start

Tanti Technology

Tuesday, 19 November 2013

Creating DVD Repository (VIOS)

How to Setup SEA Failover on DUAL VIO servers