Indirect Checkpoint

-


In the realm of SQL Server, database management is a complex art. One crucial aspect of this management is controlling when data is written from memory to disk through a process called checkpointing. While SQL Server offers automatic checkpoints, a more precise tool in your arsenal is the indirect checkpoint.


Indirect Checkpoint in SQL Server

Purpose:

The primary aim of indirect checkpoints is to alleviate the I/O spikes often associated with traditional automatic checkpoints. By opting for indirect checkpoints, you gain better control and predictability over the checkpoint process.

Database Configuration:

Enabling indirect checkpoints for a specific database involves setting the TARGET_RECOVERY_TIME option at the database level. This setting defines the desired time interval (in seconds) between checkpoint events for that specific database.

Predictable Checkpoints:

Indirect checkpoints empower you to specify the frequency of checkpoints for each database. This level of granularity helps maintain a harmonious balance between I/O activity and database performance. It's a remedy for those erratic I/O spikes that can disrupt system performance.

Fine-Tuning:

Tailoring indirect checkpoints to individual databases is achievable by adjusting the TARGET_RECOVERY_TIME setting. This fine-tuning aligns the checkpoint process with the unique demands of your application and workload.

Compatibility Level:

Indirect checkpoints are accessible in SQL Server versions 2012 and onwards. To harness this feature's capabilities, it's essential to ensure that the database compatibility level is set to 110 (SQL Server 2012) or higher.

Monitoring:

Effective management necessitates vigilant monitoring. Regularly assess checkpoint behavior, database performance, and I/O activity to ascertain that your configured TARGET_RECOVERY_TIME aligns with your performance objectives.


In conclusion, 

SQL Server's indirect checkpoints offer a refined approach to managing the checkpoint process, providing you with the tools to balance I/O activity and maintain a consistent database performance. This feature is particularly valuable when you need to mitigate the impact of automatic checkpoints on system resources, making it a must-know for database administrators and developers.

Comments

Post a Comment

Popular posts from this blog

Interview Questions on AOAG

-
1.What are the prerequisites for setting up AlwaysOn? 2.How do you set up replication in AlwaysOn environment? 3.How do you manage replication during Windows patching or failover if replication has been set up in AlwaysOn? 4.How do you sync logins in AlwaysOn? 5.How do you sync users in AlwaysOn secondary? 6.How do you add database files in AlwaysOn? 7.How do you perform an in-place upgrade of SQL Server in a AlwaysOn environment? 8.What is the procedure for SQL Server patching in AlwaysOn? 9.How do you failover a mirror server if replication has been set up? 10.What is the SPN concept in AlwaysOn? 11.What is file share in AlwaysOn? 12.How do you create multiple AlwaysOn listeners? 13.How do you check latency in AlwaysOn? 14.What is the command used to check latency in replication without using GUI? 15.What are DNS issues in AlwaysOn? 16.If a user is connecting to the primary and not able to connect to the secondary, and the secondary is in read-only mode, how do you fix the issue in A
Read more

Database Administrator Designations

-
  Database Administrator Designations: Exploring Key Roles and Responsibilities In today's data-driven world, the role of a Database Administrator (DBA) is crucial to ensuring that data is stored, managed, and accessed efficiently and securely. Within the realm of database administration, there are various specialized roles, each with distinct responsibilities and skill sets. Let's delve into the key designations in database administration and understand what each role entails. 1. Database Administrator (DBA) Responsibilities: Database Installation and Configuration: Setting up new databases, including installing database management systems (DBMS) software. Backup and Recovery: Creating and managing backup strategies to ensure data can be restored in case of loss or corruption. Performance Tuning: Monitoring and optimizing database performance, including tuning queries and managing indexes. Security: Implementing security m
Read more

Interview questions for Junior SQL server DBA.

-
  1.        What is SQL Server build? 2.        What are the system DBs available in SQL Server, and what is the significance of each DB? 3.        How will you troubleshoot a log file growth issue that is causing disk space issues? 4.        What are startup parameters? 5.        What are the DBCC commands you use regularly? 6.        What are the DMVs you know, and what is the purpose? 7.        How will you troubleshoot blocking? 8.        What is the difference between locking and blocking and deadlock? 9.        What is the tail log backup, and when will it be useful? 10.    How does SQL Server identify differential backups? 11.    How will you verify logins and users using queries in SQL Server? 12.    What are the differences between mirroring and log shipping? 13.    Can we configure mirroring in bulk log recovery model? 14.    Can we configure log shipping in bulk log recovery model? 15.    What is the quorum drive, and what is the use of it? 16.
Read more