VIO LPAR Introduction | Basics | Demo

Email: sales@kerneltraining.com
Call us: +91 8099776681
Welcome to VIO
Introduction Demo Class

www.kerneltraining.com
What is needed?
A very strong requirement: reduce costs and optimize investments On a
server side this normally means continue to provide same or better service
reduce software costs reduce hardware costs How? increase global system
usage avoiding overload optimize resource allocation to applications flexible
configuration dynamic reconfiguration Solutions partitions virtualization

Partitions: a technology integrator solution
 Get standard CPUs Integrate in a board (4 chips normally) Board becomes an
allocation unit A partition is a set of boards Poor allocation granularity Not
always dynamic
Static hw board, Dynamic sw partition HP: Intel Itanium2 … Static hw
board, Dynamic sw partition HP: PA-RISC … Static hw board, Dynamic sw
partition Sun: UltraSparc IV … Dynamic hw board

Partitions: a technology integrator solution

LPAR and Dynamic LPAR
 Standard on all new System p™ systems Whole processor
allocations in LPARs

Micro-Partitioning
Entitled capacity In units of 1/100 of a CPU Minimum 1/10 of a
CPU Capped or uncapped partition Variable weight % share
(priority) of surplus capacity Changes are dynamic

Capped and Uncapped Partitions
Capped partition Not allowed to exceed its capacity entitlement
(CE) Uncapped partition Is allowed to exceed its entitlement
Capacity weight Used for prioritizing uncapped partitions Value
0-255 Value of 0 referred to as a “soft cap

Shared ProcessorLPAR -Responsive Partition Example
Work can be prioritized to give time critical tasks a high fraction
of resource Lower priority partitions can run with less dedicated
resource, but can “soak” up spare CPU cycles automatically

Value of Virtualization

What is Advance Power Virtualization - APV
Micro-partitioning Partition Load Manager (PLM)
VIO Server Sharing of virtual devices between lpars
(adapters and devices) Chargeable features Virtual
SCSI – vscsi vscsi server vscsi client Virtual Ethernet
Shared Ethernet Adapter (SEA) Virtual LAN (vlan)

Virtual I/O
 Allows sharing of network and storage devices Vital for shared
processor partitions Overcomes potential limit of adapter slots due to high
number of possible Micro-Partitioning Allows the creation of logical
partitions without the need for additional physical resources Allows
attachment of previously unsupported solutions in selected OS clients (e.g.:
Linux)

Virtual Ethernet
 Configured like a standard Ethernet One partition may have multiple
virtual ethernet A virtual ethernet supports up to 20 VLAN I/O server
partition provides Layer 2 bridging using shared ethernet Each shared
adapter can support 16 virtual Ethernet LANs

Virtual SCSI
One physical drive can appear to be multiple logical drives LUNs appear
as individual logical drives Minimizes the number of adapters Can have
mixed configuration (virtual and real adapters) SCSI and Fibre supported
Supports AIX 5L V5.3 and Linux partitions

Internals AIX

VSCSI using MPIO redundancy at Client

VSCSI using LVM redundancy at Client

VSCSI redundancy with multi-pathing at the I/O Server

Virtualized I/O - Examples

~p5 systems virtualization architecture

Partition Load Manager for AIX 5L~p5 systems
 Policy-based, automatic partition resource tuning Dynamically adjust CPU and
memory allocation Supported on AIX 5L V5.3 and V5.21 Supported on
POWER4™ and POWER5™ systems

OS Support for Virtualization
i5/OS support available for 1.65 GHz p5-570, p5-590, p5-595 i5/OS can participate in the
shared processor pool, but only to the processor maximum I5/OS can utilize VLAN, but can
NOT be a client to VIO server NOTES: Dynamic LPAR standard on System p5,~p5; part of
POWER Hypervisor on OpenPower Virtual I/O Hosting Partition is an “appliance” –
encapsulated partition available on System p5,~p5 and OpenPower

Server / Storage Utilization

The Value of Advanced POWER Virtualization

Scenarios–Where APV is Likely to Have Significant
Impact
Server consolidation of many, small underutilized servers Legacy AIX®
platforms (e.g., single app per server, fractional CPUs) Web/file/print
(e.g., consolidation Linux, IA-32 to sub-CPU partitions) Application
development/testing (secure, isolation) Exploitation of Virtual I/O, VLAN
Multi-tier applications – (consolidation of web/application/database)
Using virtual disk to consolidate relatively small boot images
Consolidation of low-utilized Ethernet adapters
Responsive OS images in Shared Processor LPARs with higher utilization
Production (e.g., OLTP) with batch systems Overlapping production systems
(e.g., peak of one; valley of another) Virtual blade environment (handle bursts
of activity)

Virtualization
“Virtualization is the process of presenting computing resources in ways
that users and applications can easily get value out of them, rather than
presenting them in a way dictated by their implementation, geographic
location, or physical packaging. In other words, it provides a logical rather
than physical view of data, computing power, storage capacity, and other
resources.” Jonathan Eunice, Illuminata Inc

Why is On Demand Important to You?
Server capacity you need, when you need it to help lower total cost of acquisition
Address your planned IT capacity growth needs quickly, non-disruptively Built-in
flexibility to address unplanned, temporary spikes in demand Increased
configuration flexibility Increased reliability with processor and memory sparing
Deploy new services quickly to react to changing business requirements Gain
additional workload throughput and automated systems performance leveling

Comparing POWER4 and POWER5 Systems

CoD + Virtualization = System p Competitive Edge

Processor Terminology

Example of Reserve CoD
Note that Reserve CoD provides resources
only for the shared processor pool, not memory
or dedicated partitions

Reserve CoD with Processor Pooling

Questions?

Email: sales@kerneltraining.com
Call us: +91 8099776681
THANK YOU
for attending
Lessons of VIO

VIO LPAR Introduction | Basics | Demo

More Related Content

What's hot (20)

Viewers also liked (18)

Similar to VIO LPAR Introduction | Basics | Demo (20)

Recently uploaded (20)

VIO LPAR Introduction | Basics | Demo