How to Repair Logical and Physical Exchange Database Corruption?

Exchange database may get corrupt due to several software and hardware related issues. It can obstruct the email flow and adversely affect the business. Thus, it’s critical to fix database corruption. In this guide, we discussed Exchange database corruption, its causes, and solutions to repair corrupt Exchange database. We’ve mentioned various Exchange utilities and third-party Exchange recovery software that can help you repair corrupt database and recover lost mailboxes. We’ve also mentioned some important tips that can help you prevent database corruption.

Exchange database (EDB) files are mailbox database files where mailboxes are created that stores user information and data, such as emails, contacts, attachments, notes, calendar, etc. An Exchange admin can create a mailbox database via Exchange Admin Center (EAC) or Exchange Management Shell (EMS) cmdlets. From Exchange 2016, each mailbox database can have its properties that can be configured via EAC or EMS. Also, each EDB folder consists of the following three files:

  • Exchange Database File (.edb)
  • Transaction logs (.log)
  • Checkpoint files (.chk)

However, these mailbox database files sometimes get damaged or corrupt that results in the loss of all information and data stored in the database (.edb) files.

Exchange database corruption not only affects the business continuity as it hinders the email flow and communication but also leads to data loss. In this guide, we discussed some reasons that may lead to Exchange database corruption. Also, the solutions to fix Exchange database corruption, along with some important tips on how you can avoid Exchange database corruption and data loss.

Reasons for Exchange Database Corruption

Exchange database gets corrupt due to several reasons, such as:

  • Power Outage or Unexpected Shutdown
  • Hardware Issue
  • Software Problem
  • Exchange Server Crash
  • Dirty Shutdown
  • Incompatible Antivirus Software
  • Low Storage Space
  • Missing or Deleted Exchange Log Files

Types of Exchange Database Corruption

Exchange database corruption can be segregated into two categories:

  1. Logical Corruption

It is often referred to as Soft Corruption as it occurs due to inconsistency caused by invalid index entries, jet engine database failure, etc. at various levels.

For instance, at database level, there could be cross-object chain linkage issue due to database engine failure or invalid entries. At application level, there could be damage to the database file header or incorrect access control levels.

  1. Physical Corruption

Physical corruption occurs due to hardware-related issues, such as a hard drive problem. It is considered the lowest level of database corruption and causes severe damage to the Information Store that contains the database file. During physical corruption, you may encounter the following errors:

  • 510 JET_errLogWriteFail
  • 529 (JET_errLogDiskFull)
  • 1018 (JET_errReadVerifyFailure)
  • 1032 (JET_errFileAccessDenied)
  • 1216 (JET_errAttachedDatabaseMismatch)
  • 548 (JET_errLogSequenceEndDatabasesConsistent)
  • 528 (JET_errMissingLogFile)

Plus, you can’t mount a corrupt database when it dismounts. In such cases, you can use the backup to restore database. However, if backup is not available or obsolete, you must either repair Exchange database with the help of Exchange recovery utilities or recover mailboxes to Outlook importable PST by using a third-party Exchange recovery software.

Manual Methods to Repair Exchange Database Files

MS Exchange comes with two database diagnostic and recovery tools for Exchange database repair. These are:

  1. EseUtil (Extensible Storage Engine Utilities)

A command line-based Exchange recovery tool that helps Exchange admins resolve and repair Exchange db corruption. It is also used to perform various database maintenance tasks, such as defragmentation, integrity check, reduce database size, etc. to avoid corruption.

  1. IsInteg (Microsoft Exchange Information Store Integrity Checker)

IsInteg is also a command-line tool that is used to check the integrity of repaired Exchange database. It understands the relationship between records and tables, and turns them into messages and folders.

You can follow our detailed guide on How to use EseUtil for Exchange Database Repair. However, you may need to perform Hard Recovery by using Eseutil /p that may take significant time to complete, based on the database size. After Hard Recovery, you must run the IsInteg tool for Index Repair and check the integrity of the repaired database. You can find the tool at the following location,

C:>Program Files>Exchsrvr> bin

Then open Command Prompt, navigate to the above location (using cd), and then run the IsInteg test by entering the following command,

Isinteg –s -fix –test alltestsCopy Code

You can repeat the IsInteg test as many times as you want to get rid of all errors. Once the errors are fixed, you can mount the database.

However, before Hard Recovery is started, you are reminded about the data loss that you must confirm and accept to proceed further.

Accepting this data loss warning will start the repair process and may fix the corrupt Exchange database after deleting non-recoverable mailboxes and mail items. Besides, there are several other issues that you may encounter while using EseUtil for repairing Exchange database. These are:

  • It may delete mailboxes and data during database recovery
  • It may fail to fix the database if corruption is high
  • Consumes a lot of time
  • Requires good technical skills to execute several commands with accuracy
  • A typo in command or wrong command can cause further damage to the database or permanent data loss
  • If STM and EDB does not match, EseUtil will not work
  • Requires a lot of storage space
  • It doesn’t work when STM file is missing

So if you encounter any of these issues during database repair via EseUtil, you can use a third-party Exchange repair tool.

Recover Mailboxes from Corrupt Exchange Database via Exchange Recovery Software

When the Exchange database is severely corrupt or can’t be fixed with the help of Exchange’s EseUtil and IsInteg utilities, you can rely on an Exchange recovery software, such as Stellar Repair for Exchange.

The software scans, repairs, and extracts mailboxes from corrupt database file and provides options to save them in PST, EML, PDF, MSG, HTML, and RTF formats. It also features option to import the mailboxes directly to live Exchange or Office 365. With the help of this Exchange database repair software, you can repair any Exchange EDB file and perform a granular search by using the search filters.

The software helps when Exchange utilities fails to fix the problem and the database is damaged with no possible way to fix it. This helps avoid downtime as it’s quite easy-to-use and doesn’t require any additional permissions, besides access to database file.

The tool helps admins restore the email services in no time.

Why Choose Stellar Repair for Exchange over EseUtil?

Here’s a brief comparison between the two utilities that can help you fix logical and physical Exchange database corruption.

 

EseUtil Stellar Repair for Exchange
Deletes unrecoverable or damaged mailboxes and data Repairs corrupt Exchange database file and recovers all data including deleted mailboxes and mail items
It may fail to repair Exchange database even after hard recovery It repairs Exchange database and recovers mailboxes with 100% integrity
It’s a command line-based Exchange recovery tool that requires technical skills It has easy-to-use graphical user interface that makes database recovery faster and convenient
It doesn’t provide any save options It provides options to save recovered mailboxes to PST, MSG, EML, HTML, RTF, & PDF formats or live Exchange and Office 365 accounts
Requires a lot of time and doesn’t work when storage space is low It provides options to save recovered mailboxes to PST, MSG, EML, HTML, RTF, & PDF formats or live Exchange and Office 365 accounts
Does not preview any mailbox or its content during repair or recovery It’s fast and can save recovered mailboxes from corrupt database to internal or external storage drives

 

Tips to Prevent Exchange Database (EDB) Corruption

 

Although Exchange database corruption can be resolved by using Exchange utilities and third-party Exchange repair tools, it is better to prevent EDB corruption in the first place. You can follow the given tips to prevent database corruption:

  • Install server-grade hardware components
  • Maintain a regular backup
  • Use MS Exchange Server Best Practices Analyzer (ExBPA) and perform Exchange maintenance tasks regularly
  • Install Exchange compatible antivirus or antimalware application
  • Ensure enough free storage space in the database and server

 

Conclusion

Exchange database is a storehouse that stores all mailboxes and mailbox items, such as emails, attachments, contacts, notes, etc. When the database (EDB) corrupts, it dismounts that disrupts the email flow, impacts productivity, and may lead to data loss if not resolved quickly. Microsoft provides two Exchange database recovery utilities, EseUtil and IsInteg that can help Exchange and IT admins to repair Exchange database.

Alternatively, you can use a third-party Exchange recovery software, such as Stellar Repair for Exchange that can resolve such issues more quickly and help you restore users’ mailboxes and communication. While the Exchange utilities require preparations, permissions, and large storage space, along with technical knowledge to recover corrupt Exchange database, this Exchange recovery software recovers and restore the mailboxes from a corrupt database to PST or live Exchange in a few clicks. It even recovers accidentally deleted mailboxes from damaged Exchange database.

Boosting SEO Performance: Unleashing the Power of Backlink Checker Tools

The majority of businesses these days are moving online, and digital marketing has become a major way of attracting new clients, generating leads, and boosting brand visibility. Search Engine Optimization is the main way to improve a website’s visibility and drive organic traffic. It consists of multiple aspects, including content creation, keyword optimization, and one of the most important factors, the presence of high-quality backlinks. Backlinking signals both search engines and users online that the content you’re creating is trustworthy and relevant. In this article, you’ll learn about the importance of backlinking and how to use backlink checker tools to boost your business’s visibility and rank higher in SERP.

Understanding Backlink Analysis 

Backlinks play a crucial role in SEO. Those are hyperlinks that point from one website to another. For instance, other websites can link to your blog posts in their articles, inviting people to check out your content. These links will indicate that your content is relevant, valuable, and worth reading. Now, let’s talk about the importance of backlinks. 

Importance of Backlinks

Backlinks have numerous benefits for businesses and their websites’ SEO efforts.

 

  • Increased organic traffic: When people read content on a specific website and click on links to your site, it increases organic traffic, especially if they find your content valuable. 


  • Improved credibility: The more backlinks from authoritative websites you have, the more credible people will consider you. It is essential to create high-quality content to demonstrate that you are an expert in your field and can be trusted. 


  • Increased rankings: Backlinks are one of the top ways to increase your ranking in SERP. Search engines like Google consider a large number of high-quality backlinks as a sign that your website can be trusted, and it leads to higher rankings. 


  • Fast indexing: When search engine crawlers index pages that have links to your website, they follow these links and start analyzing your pages, lending to faster indexing and better visibility in SERP.

 

To experience all these benefits, you can use a Backlink Checker Tool by NinjaReports. It is a versatile backlink checker tool with a lot of useful features, such as comprehensive backlink analysis, competitor analysis, customized reporting features, integration with other SEO tools, etc. It simplifies the process of backlink creation by automating the process, visualizing the data, and allowing you to receive actionable insights about your current backlink profile and opportunities. 

Backlink Analysis Process

Not all backlinks are of high quality. It is essential to learn how to analyze them and ensure that they will benefit your SEO efforts. There are a few steps to do that:

 

  • Gather backlink data: You can gather backlinks by using various online backlink checker tools. These tools provide lists of backlinks that are used by other websites and can be beneficial for you. 


  • Check domain authority: Once you have a list of backlinks, pay attention to their authority. You should use backlinks that have the highest authority, as websites with these links have a greater impact on rankings. 


  • Analyze relevancy: All backlinks you use should be relevant to the content you create. For example, if you have a blog about IT development, you should look for websites that write on similar topics because it will help you attract users interested in this domain. 


  • Check link quality: You should also check whether the websites you take backlinks from are reputable, create content of high quality, and can be trusted. Using backlinks that lead to websites with poor content or spam can affect your website’s performance in SERP.

Leveraging Backlink Checker Tools

According to recent statistics, 55.24% of web pages on the internet have zero backlinks, and 29.79% of web pages have less than 3 backlinks. That’s why it’s essential to start using backlink checker tools for your benefit. 

Backlink analysis can be automated and done fast and easily with the help of various backlink checker tools available online. 

Backlink checker tools are SEO tools that help businesses analyze and evaluate their backlink profiles, find new opportunities, and analyze their competitors. Usually, backlink checkers have the following functionality:

 

  • Backlink analysis: These tools collect data about backlinks from multiple sources, providing you with a comprehensive overview of the total number of backlinks, their authority, domains, anchor texts, and the quality of the backlinks. 


  • Link quality assessment: Backlink checkers constantly update information about backlink quality and authority. They assess page authority, citation flow, spam score, domain authority, etc. You can see all these numbers when you click on a specific backlink, which helps you decide whether to use it. 


  • Competitor analysis: This is an essential feature of any backlink checker. You need to compare your website to your competitors to identify gaps in your strategy, opportunities, and possible collaborations. You can also use the same backlinks as your competitors if they see that these links bring real results. 


  • Reporting: Backlink checker tools allow generating reports with graphs, charts, and other visual elements to help you comprehend the data easier and evaluate your backlink profile. 


  • Link discovery: You can discover new potential links through these tools, find broken links, and guest posting opportunities. 

Best Practices for Backlink Analysis

Backlink analysis is a multi-step process that includes various practices, two of the most effective being identifying high-quality backlinks and competitive analysis. 

Identifying high-quality backlinks helps you find links that are relevant to your content, come from authoritative websites, and can be trusted both by users and search engines. Moreover, it is essential to create a natural, balanced link profile with backlinks from different domains, IP addresses, and types of content (image, text, video, etc.). 

Competitive analysis is vital for discovering new opportunities, identifying successful strategies for growth, and outperforming your competitors. It helps you understand your competitors’ link-building strategies and either get inspired by them or see what they are doing wrong and not repeat their mistakes. 

Conclusion

Backlinking is as important for SEO as keyword research and content creation. Your SEO efforts won’t show real results without an effective backlink strategy. Thankfully, numerous online backlink checker tools like NinjaReports can help you streamline your backlinking efforts and collect actionable insights about your backlink profile.