storage management
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STORAGE MANAGEMENT. LECTURE 1. Lecture Objectives. Upon completion of this lecture, you will be able to: Describe the importance of information to individuals and to businesses Define data and information Discuss the categories of data - PowerPoint PPT PresentationTRANSCRIPT
STORAGE MANAGEMENT
Introduction to Information Storage and Management - 1
LECTURE 1
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Intorduction to information storage technology: Review data creation and the amount of data being created and understand the value of data to a business
Upon completion of this lecture, you will be able to:
Describe the importance of information to individuals and to businesses
Define data and information Discuss the categories of data Describe the storage architectures and their
evolution
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“Digital universe – The Information Explosion”◦ 21st Century is information era ◦ Information is being created at ever increasing rate◦ Information has become critical for success
We live in an on-command, on-demand world◦ Example: Social networking sites, e-mails, video and
photo sharing website, online shopping, search engines etc
Information management is a big challenge◦ Organization seek to Store Protect Optimize
Leverage the information optimally
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Most data is being converted into a digital format◦ Driven by user demand◦ Facilitated by
Increase in data processing capabilities New and cheaper peripherals
Lower cost and increased speed of storage
Affordable and faster networks
Who creates data?◦ Individuals◦ Businesses
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“Collection of raw facts from which conclusions may be drawn”
010101010101010101101000010101011
01010101010
10101010101
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Video
Photo
Book
Letter Digital Data
Data can be categorized as either structured or unstructured data◦ Structured:
Data Bases Spread Sheets
◦ Unstructured Forms Images Audio Movies
Over 80% of enterprise Information is unstructured
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Rows and Columns
Contracts
Images
Manuals
X-Rays
Instant Messages
Forms
E-Mail Attachments
Check
Documents
PDFs
Web Pages
Audio Video
Invoices
Rich Media
Structured (20%)
Unstructured (80%)
What do individuals/businesses do with the data they collect?◦ They turn it into “information”◦ “Information is the intelligence
and knowledge derived from data”
Businesses analyze raw data in order to identify meaningful trends◦ For example:
Buying habits and patterns of customers
Health history of patients Virtuous cycle of information
◦ Information begets information
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Users of
Information
Centralized information
storage and processing
Uploading
information
Accessing information
Wired Wireless WiredWireless
Network Network
Demand for more
Information
Creators of
information
Virtuous cycle of information
Creating a competitive advantage◦ Identifying new business opportunities
Buying/spending patterns Internet stores, retail stores, supermarkets
Customer satisfaction/service Tracking shipments, and deliveries
◦ Identifying patterns that lead to changes in existing business Reduced cost
Just-in-time inventory, eliminating over-stocking of products, optimizing shipment and delivery
New services Security alerts for “stolen” credit card purchases
Targeted marketing campaigns Communicate to bank customers with high account balances about a special
savings plan
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Data created by individuals/businesses must be stored for further processing
Type of storage used is based on the type of data and the rate at which it is created and used
Examples:◦ Individuals: Digital camera, Cell phone, DVD’s, Hard disk◦ Businesses: Hard disk, external disk arrays, tape library
Storage model: An evolution◦ Centralized: mainframe computers◦ Decentralized: Client – server model (Data spread across
many servers)◦ Centralized: Storage Networking (Hugh respositories)
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IP SAN
Multi Protocol
Router
SAN / NAS
FC SANLAN
RAID Array
JBOD
Internal DAS
Time
Key points covered in this lesson: Importance of information Data, information and storage Categories of data Storage architectures and their evolution
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Challenges in Data Storage and Management
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Upon completion of this lecture, you will be able to:
List the five core elements of a data center infrastructure
Describe the requirements of storage systems for optimally supporting business activities
Explain the importance of Information Lifecycle Management
List the activities in developing the ILM strategy
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Applications Databases – Database Management System
(DBMS) and the physical and logical storage of data
Servers/Operating systems Networks (LAN and SAN) Storage arrays
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Consider an order processing system consisting of: Application for order entry Database Management System (DBMS) to store customer and product
information Server/Operating System (OS) on which the application and database
programs are run Networks that provide
◦ Connectivity between Clients and the Application/Database Server (LAN)◦ Connectivity between the Server and the Storage system (SAN)
Storage Array – database is stored on physical disks in the storage array
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Local AreaNetwork
Storage Area Network
Storage Array
Client
Server
Application User
InterfaceOS and DBMS
Database
A customer order is entered via the Application User Interface on a client
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Local AreaNetwork
Storage Area Network
Client
Server
Application User
Interface
Storage Array
OS and DBMS
Database
A customer order is entered via the Application User Interface on a client
The client accesses the server over a Local Area Network
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Storage Area Network
Client
ServerStorage Array
Local AreaNetwork
OS and DBMS
Database
A DBMS uses the operating system on the server to read and write this data to the physical location on a disk
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Storage Area Network
Client
Server
O/S and DBMS
Storage Array
Local AreaNetwork
Database
A DBMS uses the operating system on the server to read and write this data to the physical location on disk
A dedicated Storage Area Network provides the communication link between the server and the storage array, and transports the read/write commands and data between the server and the storage array
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Storage Area Network
Client
ServerStorage Array
Local AreaNetwork
O/S and DBMS
Database
A DBMS uses the operating system on the server to read and write this data to the physical location on disk
A Network provides the communication link between the client and the server, and transports the read/write commands and data between the server and the storage array
A storage array receives the read/write commands and data from the server and performs the necessary operations to store the data on the physical disks
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Storage Area Network
Client
ServerStorage Array
Local AreaNetwork
Database
The application should be optimized for fast interaction with the DBMS
The tables in the database should be constructed with care so the number of read/write operations can be minimized
The server should have sufficient CPU and memory resources to satisfy application and DBMS needs
The different networks should provide fast communication between client and server, as well as server and storage array
The storage array should service the read/write requests from the server for optimal performance
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When the DBMS receives a request from the application:
It first searches the server memory; if data is found there, the operation takes about a millisecond
If not, it uses the operating system to request the data from the storage array
Dedicated high speed networks transport this request to the storage array
Intelligent storage arrays can deliver the requested data within a few milliseconds, and are typically configured to protect data in the event of drive failures
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AvailabilityAvailability
Data IntegrityData Integrity SecuritySecurity
CapacityCapacity
ScalabilityScalability
PerformancePerformance
ManageabilityManageability
Exploding digital universe◦ Multifold increase of information growth
Increasing dependency on information◦ The strategic use of information plays
Changing value of information◦ Information that is valuable today may become
less important tomorrow.
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Constraints include: Cost Physical environment Maintenance and support Compliance – regulatory and legal Hardware and software infrastructure Interoperability and compatibility
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Data Center management activities include: Provisioning/Capacity/Resource Planning Monitoring Reporting
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Data Storage Infrastructure Information Lifecycle
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Create Access Migrate Archive Dispose
New order
Value
Process order
Deliver order
Warranty claim
Fulfilled order
Ageddata
WarrantyVoided
Protect
Time
A proactive strategy that enables an IT organization
to effectively manage the data throughout its lifecycle
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Policy-based Alignment of Storage Infrastructure with Data Value
AUTOMATED
FLEXIBLE
Classifydata /
applications based on
business rules
Implement policies with information
management tools
Integrated management
of storage environment
Organizestorage
resources toalign with data
classes
Improved utilization◦ Tiered storage platforms
Simplified management ◦ Processes, tools and automation
Simplified backup and recovery◦ A wider range of options to balance the need for business
continuity Maintaining compliance
◦ Knowledge of what data needs to be protected for what length of time
Lower Total Cost of Ownership ◦ By aligning the infrastructure and management costs with
information value
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Key points covered in this lesson: The five core elements of a Data Center
infrastructure Key requirements of storage systems to
support business activities, as well as some of the constraints
ILM strategy◦ Importance◦ Characteristics◦ Activities in developing ILM strategy◦ IML implementation◦ Benefits of ILM
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Key points covered in this Chapter: Importance of data, information, and
storage infrastructure Types of data, its value, and key
management requirements of a storage system
Evolution of storage architectures Core elements of a data center Importance of the ILM strategy
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