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عنوان : كتاب Getting Started with VMware Virtual SAN

1394/07/18 - 23:27:50
ساخت بهینه، با کارایی بالا، و نرم افزار تعریف انعطاف پذیر ذخیره سازی بر روی VSAN

دانلود كتاب Getting Started with VMware Virtual SAN

آموزش شبكه داتيس

آموزش Windows Server 2012 داتيس

Book Description:

Virtual SAN is without a doubt the latest fad in the virtualization arena. The best part about VSAN solutions is the fact that a near-Flash performance is achieved with only a marginal percentage of Flash storage. And all this without noticeably compromising vSphere's exquisite feature set and its interoperability with other products from VMware. This book covers the fundamental aspects of software-defined storage, including its evolution and its role in a software-defined data center. You will gain a complete understanding of VMware Virtual SAN architecture, its components, and how it is put together. The sizing and profiling of virtual machines are also covered in detail. The book explores your options in choosing the type of Virtual SAN and deploys a simple setup that will demonstrate the workflow of a VSAN deployment

:Book Details

Publisher:    Packt Publishing
By:           Cedric Rajendran
ISBN:         978-1-78439-925-2
Year:         2015
Pages:        162
Language:     English
File size:    3.6 MB
File format:  PDF


Chapter 1: An Introduction to Software-defined Storage and VSAN

?What is a Software-defined Data Center

The significance of Software-defined Storage

The storage choices and form factors of Software-defined Storage

Traditional storage

Software-based storage

Hyper-converged solutions

An introduction to VMware Virtual SAN


Chapter 2: Understanding Virtual SAN

?Why should I use VSAN

?What is VSAN

Building blocks of VSAN

Disk groups


Storage Policy-Based Management

Where do I start? Back to the drawing board

Software requirements

Disk boot device

Local storage and boot from SAN

USB and SD card as boot devices

Disk controller

Disk flash devices

Magnetic disks

Network requirements

Some simpler options

Virtual SAN ready nodes



Chapter 3: Workload Profiling and Sizing

Capacity planning guidelines

Profiling workloads

Virtual SAN sizing utility

Virtual SAN shapes and sizes

Custom built

VSAN ready nodes


VMware guidelines for sizing and assumptions


Chapter 4: Getting Started with VSAN – Installation and Configuration Key oncepts

Disk groups

Virtual SAN network

Prerequisite checklist

Installation workflow

Hardware specifications

Server node

Cluster layout

Network layout

Setting up a VSAN cluster

VSAN ready nodes – installation


Chapter 5: Truly Software-defined, Policy-based Management

?Why do we need policies

Understanding SPBM

VSAN datastore capabilities

Accessing the VSAN datastore capabilities

Number of disk stripes per object

Number of failures to tolerate

Flash read cache reservation

Force provisioning

Object space reservation

Under the hood – SBPM

vSphere APIs for Storage Awareness

Managing Virtual SAN storage providers


Chapter 6: Architecture Overview

?Why such an architecture

Anatomy of I/O

Write buffer

Destaging data to a magnetic disk

The read cache

The READ I/O workflow

Objects, components, and witnesses

?What is an object

A swap object

The virtual machine home namespace

Virtual disks and snapshot delta-disks


A witness

Connecting the dots

Internal building blocks of VSAN

Reliable datagram transport

Cluster monitoring, membership, and directory services

Cluster level object manager

The distributed object manager

The local log structured object manager

VSAN and high availability

A magnetic disk failure

A flash device failure

A host failure


Chapter 7: Design Considerations and Guidelines

Network optimizations

Jumbo frames

Speed of the network interface

Network IO control

Isolation, shares, and limits

Quality of Service

Storage configuration optimizations

A flash device

Magnetic disks

I/O controllers

Cache-to-capacity ratio

A scale-out design

Backing up your VSAN workloads

Creating a local backup through VDP

Creating a local backup to VMFS/NFS through VDP

Creating a remote backup through VDP

vSphere Replication to protect VSAN


Chapter 8: Troubleshooting and Monitoring Utilities for Virtual SAN

Troubleshooting workflow

Validating the hardware and configuration limit

Understanding the software components of VSAN

The ESXCLI namespace

Ruby vSphere Console

VSAN Observer


?Chapter 9: What's New in VSAN 6.0

VSAN architecture types

Hybrid VSAN

All-flash VSAN

Disk group creation for an all-flash setup

Tagging flash capacity devices through ESXCLI

Tagging flash capacity devices through Ruby vSphere Client


Points to remember with all-flash VSAN

The new on-disk format

Snapshot enhancements

The fault domain

JBOD support

Serviceability improvements

LED locators

A what-if scenario

The rebalance operation





VMware VSAN is a phenomenal concept, technology, solution, and a product—all
in one—that has redefined storage provisioning and management in a vSpherebacked
infrastructure. The complexities of the traditional SAN have been replaced
with simpler, agile, and scalable storage; the key differentiator with VSAN is the fact
that complete control of the storage is at the software stack, truly aligning it with the
software-defined datacenter vision. While VSAN has been made simpler, it still needs to

be understood and configured, appropriately for optimal outcome. With this book, you will

be able to understand deploy, optimize, and monitor a VSAN-backed infrastructure. Based

on various use cases and business needs, you will also be able to define appropriate SLAs and

ensure compliance through policies. Besides administration, you will understand what goes on

beneath the surface in terms of the architecture and get an explanation of the components that

make up VSAN. This helps in closely understanding the limitations of the product and also
equips you to analyze and troubleshoot issues that may surface due to anomalies. This book

discusses the first generation of VSAN, as well as its successors, clearly explaining the refinements

made in the newer releases to understand the trade-offs with each version

1394/07/18 - 23:27:50
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