Expanded core chapter
DAS, NAS, SAN, iSCSI and Fibre Channel
Extended teaching, worked examples, calculations and configuration or commissioning walkthroughs.
Read expanded chapterNETCOMTECH TECHNICAL TEXTBOOK
Storage Technical Textbook
A structured course covering DAS, NAS, SAN, RAID, iSCSI, performance, backup and recovery.
Read in order as a course, or jump directly to the procedure you need in the field.
Book 4
Preface
DAS, NAS, SAN, RAID, iSCSI, performance, backup and recovery.
What this book should give you: By the end of this book, the reader should be able to separate capacity, performance, availability and recovery, and choose the right storage architecture for a real workload.
This book contains 6 linked chapters. Read it from the beginning if the subject is new. Experienced readers can use the part headings and chapter index as a reference manual.
How a chapter is written
Each chapter starts with the business problem, defines the jargon, then moves into the technical explanation. It includes a worked business scenario, practical lab work, troubleshooting, a field checklist and review questions. The aim is to connect theory to real infrastructure work.
HOW TO USE THIS TEXTBOOK
Learn the subject, then prove you can use it
Who this is for
Administrators and infrastructure planners responsible for files, databases, backups and shared storage.
Why a business cares
Storage design determines whether company data is fast, available, protected and recoverable. Capacity alone does not tell you whether a storage system is suitable.
How to study
Read the chapters in order if the subject is new. Each chapter includes plain-English definitions, business context, a lab, a troubleshooting exercise, a field checklist and a summary.
PART 1: ARCHITECTURE
Part 1: Architecture
Choose the right storage model.
Chapter 1
Storage Architecture: DAS, NAS and SAN
File vs block and storage transports.
Open chapterChapter 2
RAID and Storage Performance
RAID levels, rebuilds and workload behaviour.
Open chapterPART 2: DEPLOYMENT
Part 2: Deployment
Build storage services correctly.
Chapter 3
NAS Deployment and Permissions
Shares, groups, snapshots and capacity.
Open chapterChapter 4
iSCSI Multipath
Independent paths and failover.
Open chapterPART 3: OPERATIONS AND RECOVERY
Part 3: Operations and Recovery
Measure and protect storage.
Chapter 5
Storage Performance Troubleshooting
Latency, IOPS and throughput.
Open chapterChapter 6
Backup, Snapshot and Replication
Recovery layers and restore testing.
Open chapterNot an IT specialist?
Start with the business-language guide. It explains what the main technologies do, why companies use them and what questions to ask before buying or changing infrastructure.