monitoring virtualized environments

MONITORING VIRTUALIZED ENVIRONMENTS

Ahmad Khalid Nasrat

SERVICE LEVEL MANAGEMENT

ISLAMIC REPUBLIC OF AFGHANISTANMINISTRY OF HIGHER EDUCATION

HERAT UNIVERSITYCOMPUTER SCIENCE FACULTY

Monitoring Virtualized Environments|Ah. Khalid Nasrat

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Table of Contents

What is Virtualization Virtualization Benefits Virtualization Vendors Monitoring Virtualized Environment Metrics to be monitored Monitoring Framework Virtualization Architecture The eG VM Monitor tool


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What is Virtualization?

Virtualization allows you, virtually and cost-effectively, to have two or more virtual computing environments, running different operating systems and applications on one piece of hardware.


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Physical vs Virtual

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Virtualization Benefits

Granular Scaling Better utilization of compute assets Reduce hardware, power and cooling costs

Dynamic and flexible Faster deployment of new logical servers and

safer/faster migration of application Test and try

Good for students, programmers to Test, Debug Better Operation with Automation

Less overhead with server management Reduce Risks with Snapshots and backups

Aids in disaster recoveryMonitoring Virtualized Environments|Ah. Khalid Nasrat


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Virtual Machines


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Virtualization Disadvantages New, relatively unproven abstraction layers may

introduce potential security risks Consolidation of servers as well as storage

virtualization may create a larger, single point of failure - making it easier to lose significant volumes of data

Some vendors do not fully support virtualization and you may need to reproduce a problem on a non-virtualized system to facilitate diagnosis (especially where specialized hardware drivers are involved).

Deploying and managing virtualized environments requires skills that are less common but more in demand


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Virtualization Vendors

VMware - vSphere Citrix – Xen Microsoft – Hyper V Red Hat – KVM and SPICE …


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Monitoring Virtualized Environment Earlier it was the application, operating systems,

and physical infrastructure, including storage and networking that were the primary objects of monitoring.

A virtualized infrastructure introduces a new layer that needs to be monitored – the hypervisor.

The primary challenge to monitor security and network and application performance within virtualized environment is enabling visibility and access to virtualized traffic and performance.


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Metrics To Be Monitored

Health Monitoring Performance Monitoring

CPU, memory, storage and network performance metrics The virtualization-specific metrics specified by

virtualization Technology e.g., the cluster and datacenter concepts in VMware

Behavior of other virtualization features also be measured

Capacity Monitoring Server Utilization: Memory /CPU/resource Network Usage: bandwidth Storage Utilization


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Metrics To Be Monitored

Security and Compliance Monitoring VM Sprawl: Metrics to monitor the VM activities Configuration metrics: meet standards and

hardening guidelines, detect violations of IT policy. Access Control: role-based access control

enforcement. Monitoring For Billing and Chargeback

start date and end date of VM creation and allocation

Software licensing costs. VM uptime

Application Monitoring Monitor application for status, errors, upgrades


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Monitoring Framework

Ability to collect monitoring data from variety of sources cutting across performance, capacity, compliance and security goals

Analytical Processing capability to co-relate data collected from these sources to deliver better results in comparison to the existing solutions

Make the data and the analysis available for other application using APIs. This is in addition to having its own reporting and notifications capability


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Monitoring Framework Architecture


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The Virtualization and Cloud Monitoring Reference Architecture


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The SAN and Storage Layers Great deal of the performance issues that

arise in virtualized environments have something to do with storage

The SNMP data available for most SAN switches is completely useless

Products to monitor SAN NetApp (Akorri) BalancePoint

map of which guests are accessing which spindles. Virtual Instruments Virtual Wisdom

use a TAP in the SAN Quest vFloglight Storage


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The Physical Server, LAN, Switch, Router, and Virtualization Platform Layer Has more products available that monitor

it, extremely challenging task to find the right products

Monitoring tools eG VM Monitor Zenoss ManageEngine Applications Manager Hitachi IT Operations Analyzer Veeam Monitor Xangati


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The Application Layer

The product should be able to calculate hop-by-hop and end-to-end response time for the applications of interest in the environment.

dynaTrace provide deep code-level diagnostics

BlueStripe Correlsense Optier


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Integrating your New Monitoring Stack

Different products in different places, still problem- data are not monitored in one place

Netuitive has connectors to a wide variety of monitoring solutions (and can quickly add more)

Netuitive has self-learning performance analysis engine that continuously correlates data across multiple products


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The eG VM Monitor

eG VM Monitor become the best infrastructure management tool of VMworld 2008 out of a group of 30 competing products.

VirtualizationAdmin.com Rating 4.8/5


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Some of eG VM Monitor Features

Completely web-based. Extremely configurable. Auto discovery of servers, networks and applications. Daily, weekly, and monthly automatic trending of

statistics. Personalized views and alarms. Customizable alarms to send email, SMS, and SNMP traps. Detailed real-time and historical graphing and reporting. Layered modeling for clear problem determination. Complete internal and external monitoring of network,

systems, and applications Automatic triage using application inter-dependencies to

determine root cause analysis of problems


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Review the eG VM Monitor Demo video about eG VM Monitor on the

eG website http://www.eginnovations.com/

eG Innovations hosted version of eG VM Monitor to monitor different applications and services online

Install eG VM Monitor, You can try demo

http://www.eginnovations.com/

http://www.eginnovations.com/


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Logging

• Different roles for different users.• SQL Server admin who monitors only the SQL Server


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Alarms Window upon logging in The red item at the top of the alarms

window is very likely the root cause of all or many of the alarms in the window.

Red alarm indicates that physical CPU usage is high


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Pros and Cons of eG

Pros It offers the most complete picture of the

infrastructure – both virtual and physical

Cons Not easy to install Costly


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Conclusion

Use of virtualization growing and growing

The performance of virtualized environments becomes more and more critical.

Different products in different level of virtualization architecture

Integration of monitoring tools in one Netiutive

Among all eG VM Monitor almost takes care of everything


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Reference

Chandran Midhun, Jayant Walvekar, Monitoring in a Virtualized Environment, 2010

Davis David, eG VM Monitor, Dec 2010, online http://www.virtualizationadmin.com/articles-tutorials/product-reviews/eg-vm-monitor.html

Harzog Bernd, Virtualization Performance and Availability Monitoring – A Reference Architecture, March 2011, online http://www.virtualizationpractice.com/virtualization-performance-and-availability-monitoring-a-reference-architecture-9660/

Application and Network Performance Monitoring in a Virtualized Environment- Network Instruments whitepaper

ca Technologies, the complete guide to monitoring virtualized environments, 2013, http://www.ca.com

www.manageengine.com/apm

http://www.virtualizationadmin.com/articles-tutorials/product-reviews/eg-vm-monitor.html



http://www.virtualizationpractice.com/virtualization-performance-and-availability-monitoring-a-reference-architecture-9660/




http://www.ca.com/

http://www.manageengine.com/apm


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?Thanks for your

attention!Any

monitoring virtualized environments

Technology

monitoring data

virtualized infrastructure

virtualized traffic

storage virtualization

monitoring framework

primary objects of monitoring

nonvirtualized system

virtualization features