EDUCBA

EDUCBA

MENUMENU
  • Free Tutorials
  • Free Courses
  • Certification Courses
  • 360+ Courses All in One Bundle
  • Login
Home Data Science Data Science Tutorials SQL Tutorial SQL Cluster
Secondary Sidebar
SQL Tutorial
  • Advanced
    • MDF File in SQL Server
    • SQL Aliases
    • SQL Hosting
    • SQL Auto Increment
    • SQL Injection
    • SQL Wildcards
    • SQL Check
    • SQL Indexes
    • Select Distinct
    • SQL BETWEEN
    • SQLPlus spool
    • SQL Create Table
    • SQL Schema
    • Comparison Operators in SQL
    • SQL_plus
    • SQL Formatter
    • SQL LEFT INNER JOIN
    • SQL Plus Command
    • SQLPlus not found
    • SQL Injection Attack
    • Aggregate Functions in SQL
    • SQL REVOKE
    • SQL Select Distinct Count
    • IF ELSE Statement in SQL
    • SQL CASE Statement
    • SQL While Loop
    • SQL BIGINT
    • SQL Crosstab
    • SQL Wildcard Character
    • SQL INSTR()
    • SQL now
    • SQL synonyms
    • SQLite?export to csv
    • What is Procedure in SQL
    • Stored Procedure in SQL?
    • SQL Server Constraints
    • SQL DELETE ROW
    • Column in SQL
    • Table in SQL
    • SQL Virtual Table
    • SQL Merge Two Tables
    • SQL Table Partitioning
    • SQL Temporary Table
    • SQL Clone Table
    • SQL Rename Table
    • SQL LOCK TABLE
    • SQL Clear Table
    • SQL DESCRIBE TABLE
    • SQL Mapping
    • Cursors in SQL
    • AND in SQL
    • Wildcard in SQL
    • SQL FETCH NEXT
    • SQL Views
    • SQL Delete View
    • Triggers in SQL
    • SQL UPDATE Trigger
    • SQL AFTER UPDATE Trigger
    • SQL Update Statement
    • SQL DROP TRIGGER
    • SQL DROP Table
    • Types of SQL Views
    • SQL Port
    • SQL Clustered Index
    • SQL COMMIT
    • Distinct Keyword in SQL
    • PARTITION BY in SQL
    • SQL Set Operators
    • SQL UNION ALL
    • Metadata in SQL
    • SQL Bulk Insert
    • Array in SQL
    • SQL REGEXP
    • JSON in SQL
    • SQL For loop
    • EXPLAIN in SQL
    • ROLLUP in SQL
    • Escape Character SQL
    • SQL Cluster
    • SQL Backup
    • SQL Pattern Matching
    • SQL Users
    • ISNULL SQL Server
    • SQL pivot
    • SQL Import CSV
    • SQL if then else
    • SQL ignore-case
    • SQL Matches
    • SQL Search String
    • SQL Column Alias
    • SQL extensions
    • SQL Substring Function
    • Charindex SQL
  • Basic
    • What is SQL
    • Careers in SQL
    • Careers in SQL Server
    • IS SQL Microsoft?
    • SQL Management Tools
    • What is SQL Developer
    • Uses of SQL
    • How to Install SQL Server
    • What is SQL Server
    • SQL Quick References
    • SQL Like Wildcard
    • SQL Like with Multiple Values
    • SQL Examples
    • SQL Server Versions
    • SQL DROP DB
    • SQL Case Insensitive
    • SQL Expressions
    • Database in SQL
    • SQL Data Types
    • SQL Keywords
    • Composite Key in SQL
    • SQL WAITFOR
    • SQL Constraints
    • Transactions in SQL
    • First Normal Form
    • SQL Server Data Types
    • SQL Administration
    • SQL Variables
    • SQL Enum
    • SQL GROUP BY WHERE
    • SQL ROW
    • SQL EXECUTE
    • SQL EXCLUDE
    • SQL Performance Tuning
    • SQL UUID
    • Begin SQL
    • SQL Update Join
    • SQL Between Dates
    • Cheat sheet SQL
  • Operators
    • SQL Operators
    • SQL Arithmetic Operators
    • SQL Logical Operators
    • SQL String Operators
    • Ternary Operator in SQL
  • Commands
    • SQL Commands
    • sqlplus set commands
    • SQL Alter Command
    • SQL Commands Update
    • SQL DML Commands
    • SQL DDL Commands
    • FETCH in SQL
  • Clause
    • SQL Clauses
    • SQL IN Operator
    • SQL SELECT DISTINCT Multiple Columns
    • SQL Null Values
    • SQL LIKE
    • SQL LIKE Query
    • SQL LIKE Operator
    • SQL LIKE Clause
    • SQL NOT Operator
    • SQL Minus
    • SQL WHERE Clause
    • SQL with Clause
    • SQL HAVING Clause
    • SQL HAVING Clause
    • SQL GROUP BY DAY
    • ORDER BY Clause in SQL
    • SQL ORDER BY CASE
    • SQL ORDER BY DESC
    • SQL ORDER BY DATE
    • SQL ORDER BY Alphabetical
    • SQL ORDER BY Ascending
    • SQL Order by Count
    • SQL GROUP BY Month
    • SQL GROUP BY Multiple Columns
    • SQL GROUPING SETS
  • Queries
    • SQL Insert Query
    • SQL SELECT Query
    • SQL SELECT RANDOM
    • SQL Except Select
    • SQL Subquery
    • SQL SELECT DISTINCT
    • SQL WITH AS Statement
  • Keys
    • SQL Keys
    • SQL Foreign Key
    • Primary Key in SQL
    • Foreign Key in SQL
    • Unique Key in SQL
    • SQL UNIQUE Constraint
    • SQL Primary Key
    • Alternate Key in SQL
    • SQL Super Key
  • Functions
    • SQL Date Function
    • SQL Server Functions
    • SQL String Functions
    • SQL Compare String
    • Timestamp to Date in SQL
    • SQL REGEX
    • SQL Window Functions
    • SQL Syntax
    • SQL CONCAT
    • SQL ALTER TABLE
    • SQL MOD()
    • SQL Timestamp
    • SQL Min and Max
    • SQL TO_DATE()
    • SQL DATEADD()
    • SQL DATEDIFF()
    • SQL HOUR()
    • SQLite? functions
    • ANY in SQL
    • LIKE Query in SQL
    • SQL NOT NULL
    • SQL NOT IN
    • SQL MAX()
    • SQL MIN()
    • SQL SUM()
    • SQL COUNT
    • SQL identity
    • SQL DELETE Trigger
    • SQL Declare Variable
    • SQL Text Search
    • SQL COUNT DISTINCT
    • SQL TEXT
    • SQL Limit Order By
    • BETWEEN in SQL
    • LTRIM() in SQL
    • TOP in SQL
    • SQL Select Top
    • Merge SQL
    • SQL TRUNCATE()
    • SQL UNION
    • SQL ALL
    • SQL INTERSECT
    • SQL Alias
    • SQL Server Substring
    • CUBE in SQL
    • SQL RANK()
    • SQL CTE
    • SQL LAG()
    • SQL MID
    • SQL avg()
    • SQL WEEK
    • SQL DELETE
    • SQL DATEPART()
    • SQL DECODE()
    • SQL DENSE_RANK()
    • SQL NTILE()
    • SQL NULLIF()
    • SQL Stuff
    • SQL Ceiling
    • SQL EXISTS
    • SQL LEAD()
    • SQL COALESCE
    • SQL BLOB
    • SQL ROW_NUMBER
    • SQL Server Replace
    • SQL Ranking Function
    • SQL Server Permission
  • T-SQL
    • T-SQL pivot
    • T-SQL Formatter
    • T-SQL TRY CATCH
    • T-SQL CTE
    • T-SQL CASE
    • T-SQL DATEPART
    • T-SQL Date Format
    • T-SQL ROUND
    • T-SQL Loop
    • T-SQL IIF
    • T-SQL Union
    • T-SQL CREATE TABLE
    • T-SQL INSERT
    • T-SQL Stuff
    • T-SQL ISNULL
    • T-SQL ADD Column
    • T-SQL DATEDIFF
  • Joins
    • Join Query in SQL
    • Types of Joins in SQL
    • Types of Joins in SQL Server
    • SQL Inner Join
    • SQL Join Two Tables
    • SQL Delete Join
    • SQL Left Join
    • LEFT OUTER JOIN in SQL
    • SQL Right Join
    • SQL Cross Join
    • SQL Outer Join
    • SQL Full Join
    • SQL Self Join
    • Natural Join SQL
    • SQL Multiple Join
  • SqlAlchemy
    • What is SQLAlchemy
    • SqlAlchemy ORM
    • SQLAlchemy count
    • SQLAlchemy update object
    • SQLAlchemy pip
    • SQLAlchemy Connection
    • SQLAlchemy Transaction
    • SQLAlchemy Metadata
    • SQLAlchemy Raw SQL
    • SQLAlchemy Filter in List
    • SQLAlchemy Alias
    • SQLAlchemy unique
    • SQLAlchemy JSONB
    • SQLAlchemy Async
    • SQLAlchemy Types
    • SQLAlchemy Many to Many
    • SQLAlchemy Example
    • SQLAlchemy Model
    • SQLAlchemy Data Types
    • SQLAlchemy Filter
    • SQLAlchemy SQLite
    • SQLAlchemy DateTime
    • SQLAlchemy create_engine
    • SQLAlchemy Delete
    • SQLAlchemy Migrations
  • NoSQL
    • NoSQL Databases List
    • NoSQL Data Modeling
    • Types of NoSQL Databases
    • NoSQL Injection
    • NoSQL vs SQL Databases
    • NoSQL Use Cases
    • NoSQL Key Value
  • Interview Questions
    • SQL Interview Questions
    • Advance SQL Interview Questions
    • SQL Joins Interview Questions
    • SQL Server Interview Questions
    • SQL Current Month

SQL Cluster

By Priya PedamkarPriya Pedamkar

SQL Cluster

Introduction to SQL Cluster

Clusters in standard query language (SQL) databases are collections of multiple physical servers that are grouped together using a LAN connection to create a single database with high availability, less hardware failures, and reduced downtime. A SQL Cluster has single shared disk storage where each physical server can store its database files by using their identical access to it. Each physical server must host an instance of the SQL server. In this article, we will be learning about SQL clusters, their advantages and disadvantages, and methods to create SQL clusters.

Advantages

Some of the advantages are given below:

Start Your Free Data Science Course

Hadoop, Data Science, Statistics & others

  • One of the most important advantages of SQL clusters is that they act as shields to hardware failures. In cases where we have a single database server, the failure in that particular server node leads to a complete halt in the system. But when we have database clusters, this failure can automatically be overcome, by passing over the request to the next available node. This is called a cluster failover.
  • Upgrades on the SQL server service can be performed simultaneously without having to turn off the entire service.
  • Database clusters help in load balancing as each physical node can attend to different batches of service requests.
  • Downtime due to hardware failures are effectively reduced when database clusters are used instead of standalone sql servers.

Disadvantage

Some of the disadvantages are given below:

  • While a very evident disadvantage of database clusters is their inability to recover from database corruption. It is difficult to locate the source of corruption. Also, database clusters have high complexity involved in their design and creation.
  • Database clusters are more expensive compared to standalone SQL servers and their maintenance and administration is more complex and tedious compared to the former.

Having known the advantages and disadvantages of SQL database clusters, let’s go ahead and try to learn how we should install a SQL Server clustered instance. Before proceeding to the step-by-step guide, I will highly encourage you to go through the list of prerequisites for the installation process:

  • Windows PowerShell
  • NET Framework 3.5 SP1
  • Microsoft Update package (required for SQL Server 2019 and above only. Older versions have Microsoft update pre-installed in them)
  • SQL Server Setup support files
  • Do not use unsupported symbols in the cluster name. Some of the unsupported symbols are comparison operators such as (<,>), double and single quotes(“,’), and (&).
  • Configuration of all cluster nodes must be the same
  • SQL Server installation disk should not be encrypted or compressed
  • Check Port, Network, and Firewall Considerations. SQL Server’s network name and IP address should not be used for any other purposes.
  • After installing the operating system and SQL Server instance on each node of the cluster do not forget to configure Microsoft Distributed Transaction Coordinator(MDTC).

How to Install a SQL Server Cluster?

Once we have taken care of all the prerequisites, we are all set to install a SQL server cluster. Here are the steps to it.

  • Step 1: In order to install and configure a SQL server cluster we have to use SQL Server Setup. Download the SQL Server setup from microsoft.com. Next right-click on setup.exe and run the file as “Run as administrator”. A dialog box will appear in front of you. This is the SQL Server Installation Center. Click on the Installation tab and select “New SQL Server failover cluster installation”.
  • Step 2: Enter the product key in the SQL server installation window and click on next.
  • Step 3: After clicking on Next, a new window will appear in front of you. Click on the check box to accept the terms and conditions and finally click on Next.
  • Step 4: On clicking Next, SQL Server will start ensuring whether all the rules and prerequisites have been satisfied. If yes, then the Next button will be enabled and you can proceed ahead by clicking on it. If all the rules are not satisfied, then we have to start again, while ensuring that all the environmental conditions have been satisfied. Also ensure that you are running a 64-bit SQL Server on 64-bit hardware that is running on a 64-bit Windows operating system.
  • Step 5: On the next dialog box, check if you want to receive updates from Microsoft and SQL Server and click on Next.
  • Step 6: After clicking on Next, a failover cluster rules will appear in front of you. A list of both successful and warning rules will be there. Click on Next to go ahead in the installation process.
  • Step 7: Once you will click on the Next, a new dialog box with two options : configure SQL Server feature installation and SQL Server PowerPivot for SharePoint will appear. Choose one as per requirement and click on next.
  • Step 8: The next dialog box for feature selection will appear. Select the required instance and share features based on requirements and click on Next.
  • Step 9: In the next dialog box called instance Configuration window, enter SQL Server Network Name and click on Next.
  • Step 10: On the next dialog box called Cluster resource group, select the name of the cluster group and proceed.
  • Step 11: On the cluster disk selection window, select the disks that you want. Select only shared disks that are part of the current cluster.
  • Step 12: On the cluster network selection, enter a unique and unused ip address for the cluster and click on next.
  • Step 13: Next, enter the SQL Server service accounts and their respective passwords for Server configuration and click on next.
  • Step 14: Next proceed to Data directory configuration. Enter the required details, while ensuring that the path specified for the TempDB data and log files exists on all the cluster nodes. If this is not the case, then SQL Server will fail to come online. Click on Next.
  • Step 15: An alert will come in front of you, click on Yes to complete the installation process.

Recommended Articles

This is a guide to SQL Cluster. Here we also discuss the introduction and how to install a sql server cluster along with advantages and disadvantages. You may also have a look at the following articles to learn more –

  1. PostgreSQL DELETE
  2. SQL Backup
  3. MySQL NOW
  4. SQL Pattern Matching
Popular Course in this category
MS SQL Training (16 Courses, 11+ Projects)
  16 Online Courses |  11 Hands-on Projects |  70+ Hours |  Verifiable Certificate of Completion
4.5
Price

View Course

Related Courses

JDBC Training (6 Courses, 7+ Projects)4.9
PHP Training (5 Courses, 3 Project)4.8
Windows 10 Training (4 Courses, 4+ Projects)4.7
SQL Training Program (10 Courses, 8+ Projects)4.7
PL SQL Training (4 Courses, 2+ Projects)4.7
Oracle Training (17 Courses, 8+ Projects)4.7
Primary Sidebar
Footer
About Us
  • Blog
  • Who is EDUCBA?
  • Sign Up
  • Live Classes
  • Corporate Training
  • Certificate from Top Institutions
  • Contact Us
  • Verifiable Certificate
  • Reviews
  • Terms and Conditions
  • Privacy Policy
  •  
Apps
  • iPhone & iPad
  • Android
Resources
  • Free Courses
  • Database Management
  • Machine Learning
  • All Tutorials
Certification Courses
  • All Courses
  • Data Science Course - All in One Bundle
  • Machine Learning Course
  • Hadoop Certification Training
  • Cloud Computing Training Course
  • R Programming Course
  • AWS Training Course
  • SAS Training Course

ISO 10004:2018 & ISO 9001:2015 Certified

© 2023 - EDUCBA. ALL RIGHTS RESERVED. THE CERTIFICATION NAMES ARE THE TRADEMARKS OF THEIR RESPECTIVE OWNERS.

EDUCBA

*Please provide your correct email id. Login details for this Free course will be emailed to you

Let’s Get Started

By signing up, you agree to our Terms of Use and Privacy Policy.

EDUCBA

*Please provide your correct email id. Login details for this Free course will be emailed to you
EDUCBA

*Please provide your correct email id. Login details for this Free course will be emailed to you
EDUCBA Login

Forgot Password?

By signing up, you agree to our Terms of Use and Privacy Policy.

This website or its third-party tools use cookies, which are necessary to its functioning and required to achieve the purposes illustrated in the cookie policy. By closing this banner, scrolling this page, clicking a link or continuing to browse otherwise, you agree to our Privacy Policy

Loading . . .
Quiz
Question:

Answer:

Quiz Result
Total QuestionsCorrect AnswersWrong AnswersPercentage

Explore 1000+ varieties of Mock tests View more