Commvault is a highly demanding data protection solution offered for medium and large enterprises. It has an extremely customizable online user interface to handle our disaster recovery and data protection efforts. Through default streamlined procedures and configuration values, it reduces the time of regular data recovery and protection tasks. Through the command center of Commvault, we can identify the content that we want to secure and begin and control the restores and backups.
Leading MNCs like Adobe, Apollo Tyres, Microsoft, NTT DATA, NASA use Commvault to handle their constantly growing and evolving business environments. The latest features of Commvault simplifies your data backup and recovery processes. So, the Commvault software will continue to be the most utilized data backup and recovery solution in the tech world. If you want to build a promising career in Commvault, join our Commvault training. According to Indeed.com, the average salary for Commvault jobs in the US is around $80K per annum. In this Commvault tutorial, you will learn what is Commvault and then study its essential features.
Leading MNCs like Adobe, Apollo Tyres, Microsoft, NTT DATA, NASA use Commvault to handle their constantly growing and evolving business environments. The latest features of Commvault simplifies your data backup and recovery processes. So, the Commvault software will continue to be the most utilized data backup and recovery solution in the tech world. If you want to build a promising career in Commvault, join our Commvault training. According to Indeed.com, the average salary for Commvault jobs in the US is around $80K per annum. In this Commvault tutorial, you will learn what is Commvault and then study its essential features.
| Want to Enrich your career and get a certified Commvault professional, then enroll in our “Commvault Online Training” Course. This course will help you to achieve excellence in this domain. |
Commvault is a management and information solution that offers to handle and secure our enterprise data. It is a public merchandise company established in 1988 and headquartered in the USA. We can use this software for data recovery, backup, cloud management, and infrastructure services. It also allows us to access and utilize the enterprise data anytime and anywhere.
We use the Commvault software in AWS and cloud solutions for securing, backup, and accessing their data. Following are the most general advantages of using Commvault:
We can store the secured data on the tape, disk, and database server. We can use the data autonomous multiple copy management for satisfying all the compliance and DR needs.
We can access emails and data files and can store the documentation, and also assist in retrieving and recovering them continuously from mobile pages and web browser pages.
Commvault alters the events that need attention, reports with in-depth information on the operations, and detailed data analytics to provide a thorough evaluation to the CommCell.
Data protection methods like archiving, replication, backup, and snapshots are supported on all the primary applications and operating systems.
Every administrative task is centrally handled by using one administrative interface. We can perform the tasks through web pages and mobile devices.
Following are some essential advantages of Commvault:
| Related Article: Best Commvault Interview Questions |
For Working with Commvault Software, we have to install the following components:
Follow this procedure to install the above components:
Step1: Login to the computer as a member or as an administrator of the administrator group on that system.
Step2: Execute “Setup.exe” from the installation package.
Step3: On the welcome page, choose the “I Agree” checkbox and, after that, go to the next page.
Step4: In the “Choose the installation type” page, select “install packages on this computer,” and after that, go to the next page.
Step5: On the “Select Packages” page, choose the “MediaAgent” and “CommServe” checkboxes, and after that, go to the next page.
Stpe6: Follow all the instructions of the installation wizard and accept all the default options.
CommCell environment is the categorization of all the Commvault elements that move, store, secure, and handle the data and information. CommServe server and CommCell console play vital roles in managing CommCell Operations.
The CommServe server is the central management element of the CommCell environment. It ensembles and runs all the CommCell operations and maintains all the Microsoft SQL Server databases that include all the configurations, operational history, and security.
CommCell Console is the central management element user interface to handle the CommCell environment - controlling and monitoring all the viewing events and active jobs associated with all the activities. CommCell allows centralized and decentralized enterprises to handle all the data movement activities through a standard and single interface.
Disaster recovery backup performs standard backups of the CommServe database. It is essential to fetch this information in case of a system failure or disaster.
We run the data aging operation for removing the data that has prolonged its user-defined retention rule.
We can restore by jobs feature for restoring the Disaster recovery backup data.
The auxiliary copy operation enables us to create minor copies of the data related to the data prevention operations, irrespective of the native copy.
We can send and view the log files of the operations on our system through a CommServe computer.
Through the CommCell browser, we can modify and view all the jobs scheduled for running on a CommServe server through the jobs planned window. The Scheduled jobs window allows us to review the scheduled jobs and recognize the client computers they execute.
We can carry out a search operation for particular events that happened in our CommCell configuration.
We can see the log files generated by the MediaAgent. Files in the provided computer may vary according to the computer’s role in the CommCell Architecture.
We can see the job history of all administration jobs that have been executed.
We can view the users currently logged onto the CommCell Console.
It is a group of procedures that we use for preparing and recovering through a CommCell disaster. We can define the CommCell disaster as:
CommServer functionality offers the primary administration and management for the entire CommCell group. Failure in the CommServe system results in the CommCell group becoming non-functional. So, it is essential to plan and develop the disaster recovery process for protecting the CommServe host and database.
Following are the CommServe Disaster recovery solutions:
We can access the CommCell console through the following four methods:
The Commvault cloud services portal offers a set of solutions for monitoring and managing our data. We can download the software updates, see our health report and reporting dashboard. To access these solutions, we should register the product to create the account. After creating the account, we can utilize the Commvault store for downloading the updates, app studio applications, reports, workflows, and alert rules.
Critical features of Commvault cloud services are as follows:
Backup is the basis of the extensive data protection and management policy. The Commvault software provides continuous and effective restore and backup of the data in our organization from the operating systems, applications, and databases. Commvault software forms on this base by incorporating the application knowledge with the global duplication, indexing, hardware snapshots, search, replication, and reporting. Backup agents are the software that is installed on the systems to secure and access the data. Following are the critical Backup Agents:
We can use Commvault software to support big data applications and file systems. We can install the Commvault software on multiple data access nodes, and after that, define one of the data access nodes as a master node.
We can use Commvault software for accessing the data on the different cloud applications. We utilize the Commvault software for running the backup on cloud applications and store the backup information on a tape or disk.
We can use the reports on the Web Console, Command Center, CommCell Console, and Cloud Services Portal. By installing Commvault, we can automatically include a wide range of reports. By using the following information, you can determine which reporting method suits your organization:
It is an incorporated toolset that contains sensitive data governance, compliance search, and file storage optimization.
Commvault provides various tools and utilities, they are:
Conclusion
In this Commvault tutorial, we have included all the features and elements of Commvault to provide you with the fundamental knowledge of Commvault software. I hope this article helps you learn and upgrade your skillset. If you have any queries, let us know by commenting in the below section.
Commvault tutorial
Commvault is an organisation-level software data platform. It has some modules to restore, archive, back up, duplicate, search, and replicate data. This software is built on unified code base as a single platform. Features of commvault include protecting data using mobile devices, web browsers which end users can access, etc.
Commvault software was previously called simpana. The data produced is safeguarded by installing an agent software on the virtual or physical hosts which make use of APIs or operating system (OS) to protect data in a steady state. Produced data is processed by the agent software at the client side (computers) and data is backed up to disk, tape, data manager, MediaAgent, or cloud storage. The CommServe a centralized server tracks all the data management activities through central user interface (CUI).
Important features of Simpana software include:
This software platform delivers exceptional advantages and benefits with integrated approach to data and information management. The platform has a powerful software that is tightly integrated, and provides functionality through virtual environments to recover and protect data, ability to manage complexity and costs, and acquires a better understanding of your information.
Some of the capabilities are listed below:
OnePass and Archiving: By this technique, you can classify, store, access, and store data according to evidentiary value, and business. We can also access and preserve data which is stored electronically.
This is the first process industries have incorporated to archive, and backup data. It combines both the processes - archive and backup into one (single), with low-impact data collection (operation). This operation moves data into secondary storage, and data functions as a backup and archives a copy. For instance, big file storage and email problems that constantly grow with no footprints, are managed by archiving data with no overhead additions, and parallelly storing and retaining data based on its utility.
There are two types of agents to perform archiving. They are:
Snapshot Management: To manage snapshot, IntelliSnap technology is prefered. It includes complex life cycle of snapshot management into the framework (software). This integrated method makes it easy, quick, and affordable to equip accelerating backup and recovery of applications, the power of multiple array-based snapshots, data, virtual machines, and systems. It automatically creates application-aware (hardware) snapshot of copies across multiple storage environments, and list of snapshot data is recovered from individual files without collection of scripts and recovery tools.
Security and Encryption: It securely protects data present in the cloud or in the premises, at the edge. The main aim is to secure data, whether it may be in the office or on the road, on devises or laptops, and at rest or while traveling. It uses effective encryption standards which have to be customizable to access content and operations, single sign-on, audit trails, role-based security, and alerting to secure your information. Data which is protected efficiently is stored in “ContentStore”. Contentstore is a virtual repository of all managed data. This security will reduce cost by securing stored data.
Deduplication: This feature reduces backup time by saving data to the storage and network resources. This is done by identifying and removing the duplicate data during backups. All the data from the operating systems like UNIX, Windows, LINUX is “deduplicated” before moving into the secondary storage. During this process, various factors are considered such as reducing the space required for storage, reducing the time and bandwidth required to move data, and to reduce the time taken to restore data. Setting up deduplication where it makes some sense: on the target, at the source, or some times both. Deduplicated data is stored in tapes for long-term storage purposes. The technique of deduplication benefits during disaster recovery, by moving deduplicated copies of data to cloud storage.
[Related Article: CommVault Deduplication]
Disaster Recovery: It’s likely that due to impact of application interruptions, data loss can be stunning. That is why disaster recovery is most significant operation that every organisation requires. The ability to handle interruptions that are unplanned caused by intuitions must be taken care of. This software drastically simplifies disaster recovery operation and enhances business continuity with efficient platform, that is flexible and integrated, improves business by reducing costs and the risks of data loss. Appropriate strategies are to be sleek or up-to-date at the time of disaster. These might include:
Frequently Asked CommVault Interview Questions
Commvault software allows smooth and efficient backup and restore of data of your organisation from most prevailing operating systems (OS), databases (DB), and applications. This system uses agents to interface with applications and file systems to facilitate the transfer of data to the protected environment. Data can be safeguarded in the following ways:
A CommCell is the logical group of all the software components that store, move, protect, and manage information (data). It contains one or more Media Agents, one or more clients, and one CommServe host.
MediaAgent
The MediaAgent (MA) acts as data transport manager in the CommCell environment. It manages the data storage libraries and performs data movement. CommServe(server) correlates MA tasks. Scalability is achieved by involving more than one MediaAgent(MA) in a CommCell environment. This software can be installed in clustered, physical, and virtual environments.
Client
A client is a group of software agents that aids the movement of data associated with the client, and acts as protection manager.
CommServe
There is a possibility of only one CommServe host. It is the chief management component that executes all CommCell operations-- configuration, maintaining SQL Server (databases) that contain all operational history, and security of CommCell environment. It can be installed in virtual, clustered, and physical platforms.
Agent
An agent is a software that is installed in user computer to protect data. Different agent softwares are available to manage different data types on a client, for example, Windows file system data and SQL databases. Agent software can be installed in virtual, physical, and clustered environments, and may be installed on proxy server too.
CommCell Console
The CommCell Console is the user interface for managing the CommCell environment. It performs -- viewing events related to all activities and controlling and monitoring the active jobs. It allows decentralized and centralized enterprises to manage all activities through, common interface (single).
Web Server
This offers web service that processes client requests from one or more web applications like Web Console and the command center that communicate with the CommServe. It provides access to CommCell where end-user can perform operations on the web.
By default, the Web Console and Web Server components are installed with the CommServe. These components are not necessarily for CommServe host but, you can accept while installing CommServe host. For better scalability, you can host it on multiple platforms.
Web Console
It is a web application that allows clients to manage their data, perform other useful operations like managing virtual machines, reporting, and downloading software packages. You can have several Web Console components combined with the same Web Server or different Web Servers. It includes both Command Center and the Web Console interface.
Reporting Server
The Reporting Server allows you to access reports that help you to maintain one or more CommCell environments from one location on your Web Console.
Workflow Engine
To automates enterprise processes Workflow tool is used. It is done by putting tasks together in a specific order. It helps you automate both external tasks and CommCell tasks.
These are the three major tools and utilities provided with Commvault software.
Developer Tools: Commvault developer tools are a set of business intelligence tools and API tools, that support many development approaches, operating systems, and technology platforms to facilitate the development of applications for business services that can be reused and easily integrated in your organisation.
Administration Tools and Utilities : To analyze the contents of log file Commvault jobs, GxTail tool is used for troubleshooting. It has many features that reduce your debugging time, such as highlighting those relevant to the issue and filtering out messages that are less relevant, DB Maintenance (Troubleshooting queries on the CommServe database), etc.
Events Organizer: It is a web-based application for managing and creating corporate events - For example, seminars, conferences, or exhibitions. You can also develop reports for monitoring and tracking events and conduct surveys.
There are no prerequisites for learning CommVault software. However, opportunities are growing day-by-day in this area. Students, developers related to R&D and Infrastructure, Software Engineers, System Administrators(DBA), End Users, and Aspirants aiming for a career in this prospective field can opt to learn.
Let’s understand what Deduplication is all about :
Data deduplication is nothing but a data compression process where it will identify and eliminate a duplicate set of data blocks during the data backup activity.
The data deduplication can also be called as :
So how does this process actually identifies whether a particular data block is a duplicate or not?
So, according to the data deduplication process, the incoming data segments are analyzed with the stored data within a system. Based on the analysis, if the data exists, then the deduplication process will not allow the data to flow through.
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Let’s consider an example to understand the deduplication process better:
Assume that the document is already available in the repository. Now, the same document has some edits. So when the data deduplication process is executed, the document will be updated with the latest changes.
On contrary, if the user is trying to load the same file again to the repository, then the data deduplication algorithms will allow the document to flow and the old record of the same file will be deleted and the newer document will be saved.
Now, as we know about the deduplication process, let’s understand more about the global deduplication method.
Within the global deduplication process, if the data is copied over to one node, and if the same data is copied over to the second node, then it will recognize that the data exists in the first node and no copy extra copy of the data is made.
Compared to the single node deduplication process, the global deduplication process is much better. Global deduplication technology is the preferred option for businesses if they are dealing with multiple data backup targets for large data centers.
The benefits associated with Global deduplication technology:
The core point of deduplication is to effectively manage database backup activity and make sure that there is no redundant data stored. To effectively implement the dedupe system, the organizations/users need to understand the capabilities, and also their limitations.
So, having these limitations in mind will definitely help the users to get the best out of the deduplication process and the data backup is done effectively.
The entire process is explained as a workflow:
MediaAgent roles:
| Related Article: Frequently Asked CommVault Interview Questions |
In this section, we will discuss commvault deduplication best practices:
With the data deduplication process in place, a lot of disk space is saved by not allowing data duplication during the backup activity. So, to effectively utilize the benefits of the deduplication process, organizations need to understand their limitations as well.
The best practices that we can be used, i.e., Do’s for data deduplication:
The best practices that can be avoided, i.e., Don'ts for data deduplication
A new generation of deduplication process is implemented by Commvault. The new generation process includes a one-stop solution for all the data backup needs where you can still get flexibility and scalability.
Simpana software is the new version of the deduplication process introduced by Commvault. With this software, the following features can be utilized to streamline the data backup activities.
One of the best features that the CommVault deduplication process offers is capturing critical user data backup activity is carried out and it takes less time and bandwidth. The process also supports all kinds of devices like laptops, desktops, etc.
With its unique process, the amount of data stored on the tapes is effectively managed. Doing this will reduce the cost associated with media and vaults.
Reduces the backup time and the impact on the network when a source side deduplication process is initiated.
All the backup requests of remote offices can be routed to a single instance where a site to site limitation can be set for the bandwidth requirements.
The deduplication ratio plays an important role in terms of determining the effectiveness of the data dedupe process. The ratio of 10:1 represents that 10 times worth of data can be protected based on the actual physical space.
So, how does the deduplication ratio is calculated?
It is the total capacity of the backup data divided by the actual physical capacity that is available.
They are several factors that affect the deduplication ratio, and they are listed below.
Monitoring Deduplication database:
With the help of the Deduplication database, the below areas are monitored.
With the help of charts, the user will be able to see information like:
The following monitoring procedure will help you view the data.
The below section will cover how to configure the CommVault Deduplication process:
In this example, we will consider the Dell PowerVault DL2100 in conjunction with Commvault Simpana 8 ( Advanced deduplication edition). The advanced version of CommVault is capable of delivering end to end block-based deduplication process where the usage of MediaAgent disk storage is reduced to a considerable amount.
So, the below configuration settings will help the user to understand how to achieve higher performance by going through the deduplication process.
Let us understand the general guidelines which are common for everyone:
To have these configuration settings enabled, let’s understand the process in detail:
Firstly, one has to create a separate primary storage policy copy, and, also, to make sure that the deduplication process is enabled by using the relative storage policy wizard.
Point to remember: never ever store the deduplication stores to the PowerVault DL2100 internal system (C:)
Configuring the system for block-level deduplication factor:
In this process, we will be able to set the deduplication factor at the block level on the primary storage policy copy. Also, we will have to enable deduplication.
Enabling sub-client software compression and deduplication:
The following process will help you understand to enable deduplication.
Apply the Spill and Fill Mount Path:
The following process should be used to apply the spill and fill mount path to PowerVault DL2100 magnetic library:
Configuring service package 3 for Simpana 8 is installed:
With the use of service package 3 within Simpana 8, the deduplication performance pack will be an added advantage to the system. This package should be installed to achieve high performance.
The following process can be used to identify whether the package is installed or not:
The Service Package 3 cannot be installed on the system with the use of an Automatic feature update on CommVault Simpana 8.
Conclusion:
In this article, we have covered all the aspects of CommVault Deduplication. With the help of this guide, we can understand the industry best practices that can be followed. With the use of Deduplication features, one can achieve the best results when it comes to data backup activity and can also streamline the process. Using the industry best practices for Deduplication, we can definitely achieve better data backup management activity.
If you are in search of Commvault interview questions, then you have landed at the right place. In this blog, we have collected the most frequently asked Commvault Interview Questions and Answers for both freshers and experienced, which will help you to ace the interview. The questions presented here are curated based on the opinions of Commvault industry experts.
But before starting, let’s understand how the demand is continuously increasing for Commvault professionals worldwide:
Now, I hope you have got a clear idea of Commvault’s demand, career opportunities, and salary insights. To simplify your interview preparation process, we have segregated interview questions they are:
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Types of Commvault Interview Questions |
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Commvault is a data management platform that assists organizations with data backup and recovery, cloud, virtualization, disaster recovery, security, and compliance.
Commvault software consists of modules to backup, restore, archive, replicate, and search data.
Simpana is one of the features of Commvault’s enterprise backup software platform that is specially designed for backup, archive, and reporting data. Simpana is the new version of the Deduplication process introduced by Commvault.
The key features of Commvault are listed below:
The various ways of doing High availability are listed below:
A storage policy is a data management entity with a set of rules that describe the lifecycle management of protected data in the Subclient’s content. It manages the Subclient’s data even when it stays on other servers in Commcell.
The set of rules includes how to manage data, protect data, where it will reside, and other management options such as compression, encryption, and deduplication of data in protected storage.
Below mentioned are the different types of storage policies:
We have only one primary copy and to that, we will be having different types of auxiliary/ secondary types of copies. The list of secondary copies available are as follows:
To configure the Commvault Proxy on the new client, follow the below steps:
Step1: Right-click on the client computer to be used as a Commvault proxy from the Commvault browser and select the properties.
Step2: From the properties dialog box, click on the Network button and select the configure firewall settings checkbox.
Step3: Click on the options tab and choose “this computer is in DMZ and will work as a proxy checkbox.”
Step4: Click on the incoming connections tab and select add.
Step5: Select the CommServe_client_name from the list.
Step6: From the State list, select RESTRICTED and click OK.
Step7: From the State list, select RESTRICTED and click OK.
A Commcell environment is the logical grouping of all the software components that secure, transfer, and manage data and information. It contains a CommServe host, MediaAgent, and Clients.
CommServe - It is the central management component that coordinates and executes all Commcell operations.
MediaAgent - It is a data transmission manager in the Commcell environment, which enables high-performance data movement and handles data storage libraries.
Client - A Client is a logical group of agents that defines the protection, management, and movement of data associated with the client.
A Silo is a collection of disk volume folders that are associated with the Deduplication Database. It contains the deduplicated data that are written on the disk storage.
A hash algorithm is used in the deduplication process in the Commvault whenever a block of data is read from the source and a unique signature is generated for the block of data using a hash algorithm.
The default block size for deduplicated storage policies is 128kb.
This can be a generalized answer and the ratio that we could maintain is as follows:
You can download and view the reports in Commvault through the web console.
You can access reports through the cloud services portal and web console.
Cloning is nothing but making a copy of something while a snapshot makes an initial copy and then makes subsequent changes to it. Both cloning and snapshot are considered to be good approaches for disaster recovery.
IRM stands for the IntelliSnap Recovery Manager that performs hardware storage snapshots directly into a recovery/protection process for smaller environments. It offers fast and easy Snap backups, centralized configuration, application support, etc.
The following steps show how IRM works:
Commvault software runs a building block approach for data management. A building block is a combination of server and storage to protect data sets regardless of the type or origin of the data.
Deduplication Building Blocks will allow you to protect huge amounts of data with minimal infrastructure, better scalability, and faster backups.
DDB seeding is a predefined workflow that allows transferring initial baseline backup among two sites using a removable disk drive.
ContinuousDataReplicator (CDR) replicates data from source to destination. It provides data protection and recovery support for all types of data including application data and file systems.
Commvault presents the most efficient backup and restores data in enterprises from mainstream applications, operating systems, and databases. Commvault backup uses agents to interface with applications or files and facilitates the transfer of data from production systems to protected environments.
There are various types of backups available in Commvault:
Some of the common or more frequent backup issues reported are as follows:
The backup copy operation allows you to copy snapshots of the data to any media. The primary snapshot stores the metadata information associated with the snap backups and when the backup copy operation is running, the primary snapshot data is copied to the media associated with the primary copy.
The backup copy can be configured in two ways:
Performing a backup is like capturing data for all of the virtual machines in a subclient.
The below-mentioned steps will help you perform a VMware backup:
1. Navigate to client computers from the Commcell console and select Virtualization-client->virtual server->VMware->backup-set.
2. Now right click on a subclient and click backup.
Select the backup type:
3. If you want to modify default modify settings or specify advanced options, then click Advanced.
4. To run a job immediately, click on Immediate or to create a backup schedule, then click configure to specify the schedule and click ok.
5. Click on Home->Job Controller to track the progress of the job.
Transport modes are selected automatically for restore and backups based on the VSA proxy used and also when the virtual machines being backed up or restored.
The following are the different types of transport modes available in VMware:
First thing first, the backup admin will have to monitor whether all the scheduled jobs are running as they are designated. If not, then they have to go through the jobs and understand the fault and rectify the same.
Further, they have to involve themselves with some of the following health checkups:
This should be an honest reply back to the interviewer because this is a real-time question that can be answered based on the experience available.
During the backup copy operations, the following activities are executed:
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Now let's have a look into the commvault interview questions based on the basic, intermediate and advanced levels.
Ans: CommVault is a data protection and information management platform. It helps organizations access, protect and use all of their data to its true value. It is also used for taking data backups and recovery. CommVault is headquartered in Tinton Falls, New Jersey.
Ans: CommVault is an information and management solution that offers to protect and manage your business data. CommVault is a publically traded software company founded in the year 1988, located in the United States of America. This software can be used for data backup, recovery, and cloud management. CommVault, which is formerly known as Simpana, Software enables us to access and use of their data, anywhere and anytime, turning the data into a powerful strategic asset. This software solution also optimizes the data protection for the broad NetApp storage portfolio and many organize uses the CommVault as a backup server for the data recovery purpose.
Ans: There are three ways of achieving high availability in CommVault,
Ans: The following are the key features of CommVault;
Ans: There are various ways of performing high availability in CommVault;
Ans:A HASH algorithm in CommVault is used in the duplication process whenever the system reads the block of data from multiple sources and also helps to generate a unique signature.
Ans: In CommVault, we can see only one Primary copy and different auxiliary/secondary copies such as;
Ans: We will have the data as one primary copy to which there will be secondary copies. We can create three types of secondary copies,
Ans: CommServe DR is hardware fresh which consists of Copy DR sets this provides CommServe facilities and restores the CS DR procedures.
Ans: This global duplication policy enables the data duplication across the multiple storage sets of disk libraries and database servers (DDB).
Ans: The following factors will give a brief explanation of DDB:
Ans: There are 3 building blocks of the CommCell environment;
Ans: The benefits of a proxy server such as;
Ans: We can perform backup on VMWare from a subclient. The entities that get backed up are,
Ans: The data of a Virtual Machine can be accessed by a VMware Backup Host using four methods,
Ans: Commvault HyperScale Appliance provides seamless scale and data protection solutions. It is mainly used for scaling out infrastructure with cloud-like economics. It is a storage architecture that provides a platform for indexing, storage, data security, automation, reporting, etc.
Ans: DDB seeding is the predefined workflow that helps the user to transfer the data. These data are available in baseline backup and acts as a connection between the two sites with the help of removable disk drives such as USB data-driven devices. We can use DD seeding to start the workflow manually from the CommCell console component.
Ans: The default block size for the data duplication is 128kb.
Ans:
Synthetic full: Synthetic full backup consolidates all the data incremental backups and appends the last backup data. Here the server (server is nothing but client machine or network utilization) performs very low utilization when compared to Full back up.
Full Backup: this full backup performs full utilization operation which is taken from the server.
Dash Full: this dash full performs operations like copying the unique blocks of the de-duplicate data, updates the DDB data, and also index the backup data.
Ans: A silo is the collection of disk volume data folders that are associated with the DDB (De-Duplicate database). It contains the deduplicated data that is pre-written on the disk storage.
Ans:The following are the different backups available in CommVault;
Ans: The different types of transfer modes are such as;
Ans:Simpana is indeed one of the capabilities of Commvault's enterprise backup software platform specifically built for backup, archiving, and analysis of data. Simpana is a modern variant of the method of deduplication implemented by Commvault.
Ans: This question will be mostly asked to a CommVault experienced candidate. The answer should include the number of Prod CommServe, DR CommServe, Media Agents, etc. Mention about all the backup servers that you have used.
Ans:The following are the operations performed by the users;
Ans: The following steps explain the process;
Step 1: Go to -> Deduplication engines -> under the storage resources
Step 2: now choose the DDP that you want to move -> then right-click on it -> click on move partitions
Step 3: Now choose the new Media agent option that is available in the target media agent.
Ans: To get access to reports, go to the web console by hitting the URL in a browser. Log into your account and click on 'Reports'. In the case of a private metrics reporting server, you will be able to view the reports in the CommCell console.
Ans: Commvault provides efficient backup and restores functionalities for any enterprise. These are the types of backups available in CommVault,
Ans: Cloning is used to make a copy of something whereas a snapshot makes an initial copy and then adds subsequent changes to it. Both snapshots and clones are considered a good approach to disaster recovery.
Ans:The answer is yes, it is enterprise-level software. Using this CommVault software we can build the data modules from scratch and this software can be used independently based on one’s requirement.
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The steps are as follows;
Ans: Intellisnap backup is used to create a point-in-time snapshot of the data. It is mainly used for taking backup of live data and then continuing the live operations.
Ans: IntelliSnap recovery manager (IRM) is used to execute hardware storage systems snapshots into a recovery process with no effect on the production server. It also provides a centralized configuration wizard through which we can configure storage media, policies, etc.
Ans: The below-mentioned steps will help you perform a VM ware backup:
Ans: The below steps explains the steps involved in creating the CommVault proxy;
Step 1: Right-click on the client computer -> from the CommVault browser -> select the properties
Step 2: go to the properties dialog box -> click on the network button -> select the configuration firewall settings -> select checkbox
Step 3: Now click on the options tab -> choose the “computer is in DMZ and this will work as a proxy checkbox.
Step 4: Click on the incoming connection option -> now select the add
Step 5: select the Commserve_client_name from the list
Step 6: from the list -> select the Restricted -> click OK.
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Ans: We have to create a new scratch pool and add the media to it. Attach a subclient to the scratch pool. This can be done at two levels,
Ans:A set of disk volume folders associated with DDB and contains deduplication data is called a Silo. This is used to eliminate data restore from tape to disk library.
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Ans: There are two possible ways available to restore the data using CommServe;
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Ans: The global deduplication policy furnishes a common deduplication database(DDB) that can be shared by various storage policy copies. It allows the deduplication of data from multiple copies which results in removing redundant data.
Ans: A storage policy in CommVault is a data management entity that contains a set of rules that will be applied in lifecycle management. This supports data protection in the sub client’s contents. Storage policy also associates with the client backup to storage tape or disks and here the policy will be used to set the data retention.
Ans: Here users can access the reports through the cloud services portal and web console.
Ans: The steps are as follows;
Ans: A HASH algorithm in CommVault is used in the duplication process whenever the system reads the block of data from multiple sources and also helps to generate a unique signature.