WPAR status in AIX?

WPAR status in AIX?

The status of the wpar can be checked by #lswpar command on the GE.

Defined (D)

The workload partition has been defined by the mkwpar command and is ready for use. But is not active.  Start workload partitions in this state with the startwpar command..

Loaded (L)

The workload partition has been configured in kernel, but processes have not yet been started.

Active (A)

The workload partition is running normally.

Frozen (F)

A checkpoint operatin is initiated, and the processes of the wpar are quiesced, awaiting the storing phase.

Paused (P)

A checkpoint or restart operation has been performed and the wpar processes are ready to tbe resumed or killed.

Broken (B)

An Administrative operation failed, leaving this workload partition is an unusable state.

Transitional (T)

An administrative operation is in progress, the wpar is in process of being created, started, stopped, configured and so on.

 

What is rootvg WPAR and what is System WPAR?

What is rootvg WPAR and what is System WPAR?

Rootvg WPAR: 

A system WPAR which is configured with its own root volume group on one or more dedicated storage devices is called a rootvg WPAR.

System WPAR: 

A system WPAR which is not a rootvg WPAR does not have its own root volume group, but has file systems created in logical volumes created out of the root volume group of the global system.

Advantages of WPAR in aix?

Advantages of WPAR in aix?

    1)   Reduced AIX System administration

    2)   Application encapsulation, monitoring and control

    3)   Rapid environment creation of a new application

    4)   Separated system admin/ Security at application level.

    5)   Live application mobility

    6)   Reduced memory use (Minimum wpar=65MB)
    7)   Rapidly create a new AIX environment in minutes

What is Global Environment in WPAR?

What is Global Environment in WPAR?

Global Environment:  

The Global Environment has an all-encompassing view of processes, Filesystems, Devices, and other User level objects and system level objects within an AIX operating system.

The Global Environment is the same as the traditional AIX login environment. This Environment allows you to view and interact with processes, filesystems, and other system components that are assigned to an active WPAR on the system.

You can create new WPARs only in the Global Environment. Many Administrative tasks can be performed only from the Global Environment.

WPAR:

Consolidation of isolated workloads with a single AIX instance.

VWPAR:

A versioned workload partition (VWPAR) provides a different version runtime environment than the global system.

i.e Global Environment is 7.1 and inside WPAR is in 5.3, this environment is called VWPAR.

What is WPAR?

What is WPAR?

Workload Partition (WPAR) is a software-base virtualization feature of AIX 6 that will provide new capabilities to reduce the number of AIX operating system images that need to be maintained when consolidating multiple workloads on a single server.

WPARs will provide a way for clients to run multiple applications inside the same instance of an AIX operating system while providing security and administrative isolation between applications.

We will discuss the GE (Global environment) and WPAR (Workload partitions) and, VWPAR (Versioned WPAR) in further.

Here we go!!! WPAR !!!

After long time, Here i am gonna update WPAR documents which i am recently working on it. 

As usual, I am gonna give you the concepts and explanation in simple format. Hope it will help.

-Lee