Essential Guide

Guide to LUN configuration and virtualisation

This LUN storage guide to LUN configuration and virtualisation has all you need to know: From provisioning LUNs for physical hosts to LUN management in virtualised environments

Introduction

LUN storage configuration has long been a cornerstone of storage management. The LUN – a chunk of storage created from RAID partitions on a SAN – presents a logical volume of capacity to an individual server.

That’s still relevant today in the era of virtualisation. Many users retain physical servers that need a one-to-one connection between host and LUN. But, the role of the LUN is also changing with the rise of server and desktop virtualisation. It now forms a container for the logical objects used by VMware, Microsoft Hyper-V etc.

In this guide you will find all you need to know about LUNs, LUN configuration and management, including their use in virtualised environments.

Essential Guide to LUN configuration and virtualisation (PDF)

1All about LUN-

LUN Storage News and Tips

News

LUN storage and its role in SAN management

Explore logical unit number (LUN) storage and its role in SAN management. Learn how to create a LUN, how to share a LUN, and find out about LUN provisioning and LUN masking. Continue Reading

Feature

Virtualisation and the LUN: Storage configuration for VMs

Virtualisation and the LUN: Storage admins used to match LUNs to physical servers, but that’s all changed. Find out how in this guide to the basics of VM storage Continue Reading

Tip

Five LUN management basics

IT expert Brien Posey discusses five fundamental ideas storage professionals must understand when dealing with LUN management. Continue Reading

Answer

Three ways to configure iSCSI LUNs in a virtual environment

Dennis Martin offers three ways to configure iSCSI LUNs with VMware and Hyper-V -- two using the hypervisor while the other bypasses the hypervisor. Continue Reading

Tip

LUN configuration best practices to boost virtual machine performance

LUN configuration plays a key role in tweaking VM performance. With the right hardware, disk type and RAID level, VM storage helps run more VMs per host. Continue Reading

Tip

13 LUN management tips for VMware environments

Use these LUN management recommendations to ensure your VMware-based virtualization exercise results in optimal storage utilization and performance. Continue Reading

Tip

How many VMs should you put on a LUN?

LUN configuration can improve virtual machine performance. When deciding how many VMs to put on a LUN, the size of your infrastructure is an important consideration. Continue Reading

2Videos-

Storage Videos of Interest

Video

VMware SAN configuration: Concerns and limitations

Storage expert Howard Marks discusses how block storage works in a VMware SAN environment, highlighting benefits and limitations to consider.

Video

Benefits of vSphere Storage I/O Control in a VMware environment

Howard Marks discusses how the use of vSphere's Storage I/O Control can combat storage resource contention problems in VMware.

Video

SAN multipathing: Implementation and key considerations

Storage expert Howard Marks describes different types of SAN multipathing and what to look out for when implementing it in certain environments.

Video

Using tiered storage architecture for health records

With tiered storage architecture, health care organizations can keep critical data on the faster systems and older data on slower ones. This expert webcast explains how.

3What is LUN?-

LUN Storage Definitions

Definition

logical unit number (LUN)

A logical unit number (LUN) identifies one or more physical or virtual storage devices to a SCSI initiator in a host server to enable data exchange. Continue Reading

Definition

virtual LUN or thin LUN

A virtual LUN (virtual logical unit number) is a representation of a storage area that is not tied to any physical storage allocation. Virtual LUNs are used in thin provisioning (also known as virtual provisioning) for storage area network (SAN) management. A virtual LUN is also sometimes called a thin LUN. Continue Reading

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