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Extending a Traditional 2-Node WSFC Cluster to a Third Node via DataKeeper

DataKeeper Cluster Edition Technical Documentation » User Guide » Clustering » Extending a Traditional 2-Node WSFC Cluster to a Third Node via DataKeeper

When replicating from a WSFC 2-node cluster to a third node via DataKeeper, the following tasks are required: Replace the existing WSFC physical disk resource with a DataKeeper volume resource that supports data replication. Change the quorum type to Node…

Extending a Traditional 2-Node WSFC SQL Server Cluster to a Third Node via DataKeeper

DataKeeper Cluster Edition Technical Documentation » User Guide » Clustering » Extending a Traditional 2-Node WSFC SQL Server Cluster to a Third Node via DataKeeper

When replicating from a WSFC SQL Server 2-node cluster to a third node via DataKeeper, the following tasks are required: Replace the existing WSFC physical disk resource with a DataKeeper volume resource that supports data replication. Change the quorum type to…

Extending a Single SQL Server Node to a Cluster

DataKeeper Cluster Edition Technical Documentation » User Guide » Clustering » Extending a Single SQL Server Node to a Cluster

This guide explains how to install a single SQL Server node and extend it to a clustered node. Please read this document carefully prior to installation. Planning Steps: Start with a Microsoft SQL Server standalone node, where data resides on the C drive. Note:…

Extending a Clustered DataKeeper Volume to a Node Outside the Cluster

DataKeeper Cluster Edition Technical Documentation » User Guide » Clustering » Extending a Clustered DataKeeper Volume to a Node Outside the Cluster

DataKeeper Volume cluster resources can be extended to a DR Node for Disaster Recovery purposes. In the event of a complete failure of all systems in the cluster, data will be accessible on the DR Node (referred to as the “DR Node”). Here you will find instructions…

Add a Node to the Cluster

DataKeeper Cluster Edition Technical Documentation » User Guide » Clustering » Add a Node to the Cluster

When adding a node to a cluster, uncheck the Add all eligible storage to the cluster checkbox. It is checked by default. If it is not unchecked it will cause all of the storage that is configured with DataKeeper to be turned into Cluster storage and all roles in…

Evicting a Node from a Cluster

DataKeeper Cluster Edition Technical Documentation » User Guide » Clustering » Evicting a Node from a Cluster

Evict the node using Windows Failover Cluster user interface. When a node is evicted the mirror with remain intact and will continue mirroring outside of the cluster. The evicted node will no longer be on the list of possible owners.

N-Shared-Disk Replicated to N-Shared-Disk

DataKeeper Cluster Edition Technical Documentation » User Guide » Getting Started » N-Shared-Disk Replicated to N-Shared-Disk

This configuration replicates data between sites where each site utilizes shared storage. Steps to be replicated from the picture above: Create a shared volume between the first two nodes within the “Primary Site”. Storage (Shared Volume) 1…

N-Shared-Disk Replicated to One

DataKeeper Cluster Edition Technical Documentation » User Guide » Getting Started » N-Shared-Disk Replicated to One

This configuration allows you to replicate the shared volume(s) of the primary site to a remote system across the network. This configuration is ideal for providing local failover within the Primary Site and disaster recovery protection should the entire Primary…

Configuration of Data Replication From a Cluster Node to External DR Site

DataKeeper Cluster Edition Technical Documentation » Configuration » Configuration of Data Replication From a Cluster Node to External DR Site

For more information, see Extending a clustered datakeeper volume to a node outside the cluster.

How to Replace A DKCE Node

DataKeeper Cluster Edition Technical Documentation » User Guide » How to Replace A DKCE Node

Replacing a node in a Windows Failover Cluster that uses DataKeeper Cluster Edition mirrored volumes involves making the following changes: Move any DataKeeper Volume resources from the node being replaced to another node in the cluster Using the registry editor,…

N-Shared-Disk Replicated to Multiple N-Shared-Disk Targets

DataKeeper Cluster Edition Technical Documentation » User Guide » Getting Started » N-Shared-Disk Replicated to Multiple N-Shared-Disk Targets

This is a complex configuration which combines the aspects of replicating a shared storage environment to multiple shared targets. Note that the number of systems in the Primary Site does not have to equal the number of systems in the Remote Site. Also note that…

Adding a Shared System

DataKeeper Cluster Edition Technical Documentation » User Guide » Working With Shared Volumes » Adding a Shared System

To add a shared system to either the source or target side of a mirror, you must be connected to that system. You can connect to the system prior to starting the Manage Shared Volumes dialog, or you can click Connect to Server from within the dialog. In either case,…

Removing a Shared System

DataKeeper Cluster Edition Technical Documentation » User Guide » Working With Shared Volumes » Removing a Shared System

To remove a shared system from either side of the mirror, bring up the Manage Shared Volumes dialog and uncheck the Include box for the system to be removed. When you click Done, the job will be updated so that the system is not part of the job. Warning: If a shared…

Connecting to a Server

DataKeeper Cluster Edition Technical Documentation » User Guide » Getting Started » Connecting to a Server

Use this dialog to connect to the server of your choice. You may enter the IP address, system NetBIOS name or the full system domain name for the server. Click Connect to select it.

Switchover in an N-Shared x N-Shared Configuration

DataKeeper Cluster Edition Technical Documentation » User Guide » Clustering » Switchover in an N-Shared x N-Shared Configuration

In a multi-shared storage environment between two sites (as shown in the diagram below), each server in each site has access to the storage being shared between the servers at that site. When a DataKeeper mirror is created, one server in each site will be designated…

Mirror Creation and Cluster Configuration

DataKeeper Cluster Edition Technical Documentation » User Guide » Using Microsoft iSCSI Target With DataKeeper on Windows 2012 » Mirror Creation and Cluster Configuration

Create your DataKeeper volumes and your cluster. See Creating a DataKeeper Volume Resource in WSFC for reference. *IMPORTANT: The iSCSI Target Role only supports DataKeeper Volumes that are mirrors of Simple Volumes placed on Basic Disks. If any of your mirrors are…

DataKeeper Cluster Edition in a Cloud Environment

DataKeeper Cluster Edition in a Cloud Environment

Deploying DataKeeper Cluster Edition in AWS Deploying DataKeeper Cluster Edition in Azure How to cluster SAP ASCS and ERS on Windows in AWS using WSFC with SIOS DataKeeper Configure a File Server Cluster in Azure Spanning Multiple Availability…

DataKeeper Cannot be used as a Quorum Device for a Cluster

DataKeeper Cluster Edition Technical Documentation » DataKeeper Troubleshooting » Known Issues and Workarounds » DataKeeper Cannot be used as a Quorum Device for a Cluster

Question Can a DataKeeper drive be used for a quorum disk? Answer No, a DataKeeper drive cannot be used for a quorum disk. The quorum type is set to Node Majority if the number of nodes is odd (ex: 3-node cluster). The quorum type is set to Node and File Share…

How to create a DK Replicated Volume that has Multiple Targets via CLI

DataKeeper Cluster Edition Technical Documentation » User Guide » Clustering » How to create a DK Replicated Volume that has Multiple Targets via CLI

The environment in this example looks like this: PRIMARY (10.0.2.100) – in AZ1 SECONDARY (10.0.3.100) – in AZ2 DR (10.0.1.10) – in a different Region *The Goals: • To create a synchronous mirror from PRIMARY to SECONDARY and an…

Safe Creation of a Shared-Storage Volume Resource

DataKeeper Cluster Edition Technical Documentation » User Guide » Configuring Mirrors » Safe Creation of a Shared-Storage Volume Resource

DataKeeper allows mirrors to be created on shared volumes where more than one system has access to the same physical storage. The shared volume can be on the source side of the mirror or on the target side. Note: Dynamic disks are not supported with Shared Storage…

Inability to Create a Mirror

DataKeeper Cluster Edition Technical Documentation » FAQs » Inability to Create a Mirror

Question Why can’t I create a mirror? Answer The common cause of this problem is that the volume on either source or target is in use by another process. Stop the process that is accessing the volume and try again. The SIOS DataKeeper software requires…

How to Obtain a License

DataKeeper Cluster Edition Installation Guide » About DataKeeper Licensing » How to Obtain a License

Obtaining and Installing the License Activating Your License The final screen of the InstallShield installation utility displays the Host ID of your server. The Host ID, along with the Entitlement ID (Authorization Code) that was provided with your DataKeeper…

How to Install a License

DataKeeper Cluster Edition Installation Guide » About DataKeeper Licensing » How to Install a License

Installing Your License Perform the following steps on each node of the cluster. Install your license using one of the followings: Placing a license file directly On each system, copy the license file to the C:\Windows\SysWOW64\LKLicense . If you have…

Manual Deployment of a SQL Server Failover Cluster Instance

DataKeeper Cluster Edition in a Cloud Environment » Deploying DataKeeper Cluster Edition in AWS » Manual Deployment of a SQL Server Failover Cluster Instance

*DISCLAIMER: While the following completely covers the high availability portion within the scope of our product, this is a setup “guide” only and should be adapted to your own configuration. *Please refer to the AWS Marketplace for a list of supported…

How to add a newly-created volume to DataKeeper

DataKeeper Cluster Edition Technical Documentation » Configuration » How to add a newly-created volume to DataKeeper

After a new volume has been created, formatted, and assigned a drive letter, run the following command from the command line in order to be able to start using the volume for mirror and job creation: From a CMD prompt: “%ExtMirrBase%\EMCMD” .…

Remove DataKeeper Storage from a Windows Server Failover Cluster Role

DataKeeper Cluster Edition Technical Documentation » FAQs » Remove DataKeeper Storage from a Windows Server Failover Cluster Role

To remove an existing DataKeeper Resource/Mirror from Windows Server Failover Clustering: Without impacting the existing role in WSFC, i.e. File Shares, SAP, Oracle, SQL Without having to run various emcmd commands, e.g. deletelocalmirroronly,…

Resources cannot Failover after a Target NODE/SYSTEM has been replaced

DataKeeper Cluster Edition Technical Documentation » DataKeeper Troubleshooting » Known Issues and Workarounds » Resources cannot Failover after a Target NODE/SYSTEM has been replaced

Error message: Log Name: System Source: Microsoft-Windows-FailoverClustering Date: 2/12/2020 6:14:29 PM Event ID: 1205 Task Category: Resource Control Manager Level: Error Keywords: User: SYSTEM Computer: servername.FQDN Description The Cluster service failed to…

Deleting a Mirror

DataKeeper Cluster Edition Technical Documentation » User Guide » Working With Mirrors » Deleting a Mirror

This action discontinues replication and removes the mirror from the associated job. The target volume is unlocked and made fully accessible. Select the job that contains the mirror you want to delete. Right-click on the mirror and choose Delete Mirror or…

Replacing a Target

DataKeeper Cluster Edition Technical Documentation » User Guide » Working With Mirrors » Replacing a Target

When replacing the target volume, you must delete the mirror in order to ensure a full resync of the data from the source volume to the target volume when the target volume is back in place. Deleting the mirror discontinues replication altogether removing the mirror…

Creating a Job

DataKeeper Cluster Edition Technical Documentation » User Guide » Getting Started » Creating a Job

If not already connected, connect to the server where you want to create a job. From the right Actions pane, select Create Job. The Job Wizard will prompt you for a Job Name and Description. Enter the appropriate information and select Create Job to…

Creating a Mirror

DataKeeper Cluster Edition Technical Documentation » User Guide » Configuring Mirrors » Creating a Mirror

Preparing Storage for Datakeeper Usage Summary: This video explains the procedure for creating/preparing storage for Datakeeper. It also addresses creating a mirror between both Source and Target nodes. For additional information regarding storage in conjunction…

Renaming a Job

DataKeeper Cluster Edition Technical Documentation » User Guide » Working With Jobs » Renaming a Job

Select the job in the left Console Tree pane of the main DataKeeper window. You can select Rename Job from the Actions pane or right-click on the selected job and choose Rename Job from the menu that displays. Enter the new Job Name and new Job…

Deleting a Job

DataKeeper Cluster Edition Technical Documentation » User Guide » Working With Jobs » Deleting a Job

Select the job in the left Console Tree pane of the main DataKeeper window. You can select Delete Job from the Actions pane or right-click on the selected job and choose Delete Job from the menu that displays. Select Yes to delete the selected job and…

Reassigning a Job

DataKeeper Cluster Edition Technical Documentation » User Guide » Working With Jobs » Reassigning a Job

Use the Reassign Job function to move an existing mirror from one job to another without deleting the mirror. Select the job from the middle Summary panel. Right-click and select Reassign Job or select Reassign Job from the Actions panel. Select an existing…

Deleting a Mirror

DataKeeper Cluster Edition Technical Documentation » FAQs » Deleting a Mirror

Question What actually happens when you delete a mirror? Answer The data remains on both sides, but the target and source data are no longer synchronized. The target volume is unlocked and made fully accessible.

Managing Shared Volumes

DataKeeper Cluster Edition Technical Documentation » User Guide » Working With Shared Volumes » Managing Shared Volumes

Once your mirrors have been created, DataKeeper allows you to manage your shared volumes. By choosing Manage Shared Volumes from the DataKeeper GUI, you can add another system, which is sharing a mirrored volume, to a job. It also allows you to remove a shared system…

Deploying a File Server Failover Cluster Instance using the Azure Portal

DataKeeper Cluster Edition in a Cloud Environment » Configure a File Server Cluster in Azure Spanning Multiple Availability Zones(AZ) » Deploying a File Server Failover Cluster Instance using the Azure Portal

To build a 2-node File Server Failover Cluster Instance in Azure, we are going to assume you have a basic Virtual Network based on Azure Resource Manager and you have at least one virtual machine up and running and configured as a Domain Controller. Once you have a…

Configuration

DataKeeper Cluster Edition Technical Documentation » Configuration

Requirements/Considerations The topics in this section identify several prerequisites to be aware of before implementing your DataKeeper…

Configure a File Server Cluster in Azure Spanning Multiple Availability Zones(AZ)

DataKeeper Cluster Edition in a Cloud Environment » Configure a File Server Cluster in Azure Spanning Multiple Availability Zones(AZ)

This step by step guide contains detailed steps that are required to deploy a 2-node File Server Failover Cluster that spans the new Availability Zones in a single region of Azure. The guide assumes that you have basic knowledge of Azure as well as Failover Clustering.…

Switching Over a Mirror

DataKeeper Cluster Edition Technical Documentation » User Guide » Working With Jobs » Switching Over a Mirror

The Switchover Mirror function enables you to switch over all the mirrors in a job or just one of the mirrors in a job. A “mirror” includes all variants for mirrors such as standard single-target replication and complex geometries such as multi-target…

Disconnecting from a Server

DataKeeper Cluster Edition Technical Documentation » User Guide » Getting Started » Disconnecting from a Server

Use this dialog to disconnect from a server. You may use this option if you no longer wish to view the server in the Administration Window. From the list of servers, select the server(s) that you wish to disconnect from and click Disconnect.

Working With Shared Volumes

DataKeeper Cluster Edition Technical Documentation » User Guide » Working With Shared Volumes

Managing Shared Volumes Adding a Shared System Removing a Shared System

Running chkdsk on Cluster Volumes during Cluster Volume Online

DataKeeper Cluster Edition Technical Documentation » User Guide » Clustering » Running chkdsk on Cluster Volumes during Cluster Volume Online

DataKeeper runs chkdsk on all mirrored volumes prior to the volume being available for use. There is a numeric Cluster Property named DiskRunChkDsk associated with each DataKeeper Volume resource created. DataKeeper now creates a new flag DiskRunChkDsk in Windows…

Removing a Clustered DataKeeper Volume

DataKeeper Cluster Edition Installation Guide » Installation » Removing a Clustered DataKeeper Volume

To remove a Clustered DataKeeper Volume follow these steps: Launch the Failover Cluster Manager. Select the Role and related DataKeeper Storage. Remove the DataKeeper Volume resource from the Role. This will move the DataKeeper Volume resource to the…

Creating Mirrors With Shared Volumes

DataKeeper Cluster Edition Technical Documentation » User Guide » Configuring Mirrors » Creating Mirrors With Shared Volumes

In order to properly configure DataKeeper in a shared volume configuration, use the DataKeeper GUI to connect to all systems where the shared volumes are configured. When connected, the DataKeeper GUI uses hardware signatures to automatically detect which volumes are…

Add a New Disk / DK Volume to an Existing Clustered SQL Role

DataKeeper Cluster Edition Technical Documentation » FAQs » Add a New Disk / DK Volume to an Existing Clustered SQL Role

When adding an additional disk to an existing cluster, the dependency relationship must be verified and configured manually based on the following requirements: The IP Address and the Disk Resource/DataKeeper Volume do not depend on anything The SQL Network Name…

Using DataKeeper Cluster Edition to Enable Multi-Site Hyper-V Clusters

DataKeeper Cluster Edition Technical Documentation » User Guide » Clustering » Using DataKeeper Cluster Edition to Enable Multi-Site Hyper-V Clusters

Prerequisite Familiarity with Microsoft Windows Server, Microsoft Windows Failover Cluster Server Management and Hyper-V Virtual Management procedures and commands is highly recommended. Note: DataKeeper ClusterCluster Edition does not support Cluster Shared Volumes;…

Hyper-V Host Cluster Error

DataKeeper Cluster Edition Technical Documentation » DataKeeper Troubleshooting » Known Issues and Workarounds » Hyper-V Host Cluster Error

Failover Cluster Error After Changing Virtual Machine Configuration While VM Is Clustered Description If Failover Cluster Manager is used to modify the VM configuration while the VM is clustered such as adding a Network Interface to the VM, “Refresh Virtual…

DataKeeper Cluster Edition Technical Documentation

DataKeeper Cluster Edition Technical Documentation

DataKeeper with High Availability – Cluster Edition Overview SIOS DataKeeper is a highly optimized host-based replication solution which ensures your data is replicated as quickly and as efficiently as possible from your source server across the network to one…

Uninstalling SIOS DataKeeper Cluster Edition

DataKeeper Cluster Edition Installation Guide » Uninstalling SIOS DataKeeper Cluster Edition

Before Removing DataKeeper If planning to uninstall DataKeeper and reinstall a previous version, all jobs/mirrors must be deleted on each node prior to uninstalling. These will need to be recreated once software is reinstalled. Uninstall DataKeeper Cluster…

DataKeeper Cluster Edition Installation Guide

DataKeeper Cluster Edition Installation Guide

The DataKeeper Cluster Edition Installation Guide contains information on how to properly install and license your software. The DataKeeper Cluster Edition Technical Documentation provides more detailed information necessary to complete your…

DataKeeper Cluster Edition Startup Guide

DataKeeper Cluster Edition Startup Guide

This startup guide provides the minimum necessary steps and related information to start using DataKeeper Cluster Edition. For specific operations of the Windows OS itself, please check the manual of your OS. In this guide, the product name DataKeeper Cluster Edition…

DataKeeper Cluster Edition Release Notes

DataKeeper Cluster Edition Release Notes

SIOS DataKeeper Cluster Edition Release Notes Version 10.0 *v10.0 refers to all v10.0.x product versions. Released November 11, 2025 Important!! Read This Document Before Attempting To Install Or Use This Product! This document contains last minute…

Upgrading SIOS DataKeeper Cluster Edition

DataKeeper Cluster Edition Installation Guide » Upgrading SIOS DataKeeper Cluster Edition

*v10.0 refers to all v10.0.x product versions. !Before upgrading to v10.0.0, see this Known Issue. !Before upgrading from v8.10.2 or v8.11.0 to releases v10.0.0 or later, see this Known Issue. Upgrading DataKeeper Cluster Edition from previous versions of…

Duplicate IP Addresses Disallowed Within a Job

DataKeeper Cluster Edition Technical Documentation » DataKeeper Troubleshooting » Restrictions » Duplicate IP Addresses Disallowed Within a Job

A DataKeeper job contains the endpoint information for all mirrors that are part of the job. This information includes the host name, IP address, and drive letter of each mirror endpoint. Within a job, an IP address cannot be duplicated on more than one node. For…

Creating a DataKeeper Volume Resource in WSFC

DataKeeper Cluster Edition Technical Documentation » User Guide » Clustering » Creating a DataKeeper Volume Resource in WSFC

Automatic Creation of a Mirror in WSFC Use the SIOS DataKeeper GUI to configure a mirror. At the completion of the mirror creation operation, the following dialog box will pop up which will allow you to automatically add the mirror as a DataKeeper volume…

Manual Creation of a Mirror in WSFC

DataKeeper Cluster Edition Technical Documentation » User Guide » Clustering » Creating a DataKeeper Volume Resource in WSFC » Manual Creation of a Mirror in WSFC

!Before creating an Empty Role, verify that your mirror(s) are Highly Available by confirming that they are listed in the Failover Cluster Manager\Storage Disk as Available Storage. If you do NOT see your mirror(s) listed as Available Storage, they are NOT Highly…

SIOS DataKeeper Cluster Edition Product Overview

SIOS DataKeeper Cluster Edition Product Overview

SIOS DataKeeper Cluster Edition is a software add-on that integrates simply and seamlessly with Windows Server Failover Clustering (WSFC) to add performance-optimized host-based synchronous or asynchronous replication. SIOS DataKeeper allows you to easily create a…

Deploying DataKeeper Cluster Edition in Azure

DataKeeper Cluster Edition in a Cloud Environment » Deploying DataKeeper Cluster Edition in Azure

DEPLOYING MICROSOFT SQL SERVER 2017 FAILOVER CLUSTERS IN AZURE RESOURCE MANAGER (ARM) Before beginning, make sure you read the DataKeeper Cluster Edition Release Notes for the latest information. It is highly recommended that you read and understand the DataKeeper…

Deploying DataKeeper Cluster Edition in AWS

DataKeeper Cluster Edition in a Cloud Environment » Deploying DataKeeper Cluster Edition in AWS

Introduction Best Practices Recommended Instance Types Manual Deployment of a SQL Server Failover Cluster Instance

DataKeeper Volume Not Available as Cluster Resource Type

DataKeeper Cluster Edition Technical Documentation » DataKeeper Troubleshooting » Known Issues and Workarounds » DataKeeper Volume Not Available as Cluster Resource Type

WSFC Server – The DataKeeper Volume is Not Available as a Cluster Resource Type After DataKeeper is Installed in a Microsoft WSFC Environment Error/Message The DataKeeper Volume is not available as a cluster resource type after DataKeeper is installed in a…

How to cluster SAP ASCS and ERS on Windows in AWS using WSFC with SIOS DataKeeper

DataKeeper Cluster Edition in a Cloud Environment » How to cluster SAP ASCS and ERS on Windows in AWS using WSFC with SIOS DataKeeper

Introduction The following is a detailed, step-by-step guide on how to cluster SAP ASCS and ERS running on Windows in the AWS cloud. The examples assume that there are two nodes in the cluster (SIOS1, SIOS2) and each node resides in a different availability zone in…

Resources cannot Failover after a Target VOLUME has been replaced

DataKeeper Cluster Edition Technical Documentation » DataKeeper Troubleshooting » Known Issues and Workarounds » Resources cannot Failover after a Target VOLUME has been replaced

Description When a target volume is replaced, there is no data on the new target volume. However, DataKeeper will re-establish the mirror when the Source node is able to communicate with the Target, and will perform a partial resync. This results in incomplete and…

Disk-to-Disk

DataKeeper Cluster Edition Technical Documentation » User Guide » Getting Started » Disk-to-Disk

This is a simple one server, two disks configuration, mirroring Volume X on Server A to Volume Y on Server A. The volumes that are used for Disk-to-Disk replication can’t also be configured to replicate to another system. *Disk to Disk does not support mirrors…

One-to-One

DataKeeper Cluster Edition Technical Documentation » User Guide » Getting Started » One-to-One

This is a simple one source, one target configuration, mirroring Volume X across the network. In addition to providing a second physical copy of the data, DataKeeper also provides the ability to switch over the mirror which allows the data to become active on the…

Many-to-One

DataKeeper Cluster Edition Technical Documentation » User Guide » Getting Started » Many-to-One

This configuration involves multiple source servers replicating one (or more) volumes to the same target system. In this configuration, each volume being replicated to the target server must have a unique drive letter. Note: This is actually two One-to-One…

Create a Mirror and Rename Job and Delete Job Actions Grayed Out

DataKeeper Cluster Edition Technical Documentation » FAQs » Create a Mirror and Rename Job and Delete Job Actions Grayed Out

Question Why are the Create a Mirror, Rename Job and Delete Job actions grayed out? Answer If a node that is part of the job is down, these actions will not be enabled.

Failed to Create Mirror

DataKeeper Cluster Edition Technical Documentation » DataKeeper Troubleshooting » Known Issues and Workarounds » Failed to Create Mirror

User Interface – Failed to Create Mirror – Application Event Log Error/Message Logged in the Application Event Log: File: .\GuiThread.cpp Line: 3099 Attempt to connect to remote system REMOTESERVER failed with error 5. Please ensure that the local…

One-to-Many (Multiple Targets)

DataKeeper Cluster Edition Technical Documentation » User Guide » Getting Started » One-to-Many (Multiple Targets)

This configuration involves one primary (source) system replicating one (or more) volume(s) to two different target systems across the network. This is referred to as a multiple target configuration. Note that there are two mirrors that are completely independent…

Access to Designated Volume Denied

DataKeeper Cluster Edition Technical Documentation » DataKeeper Troubleshooting » Known Issues and Workarounds » Access to Designated Volume Denied

If access to the designated volume is denied, then check whether you are attempting to create the mirror while other applications are accessing the volume. During Mirror Creation, the volumes must be locked on the target system for exclusive access by the SIOS…

Unable to Determine Previous Install Path

DataKeeper Cluster Edition Technical Documentation » DataKeeper Troubleshooting » Known Issues and Workarounds » Unable to Determine Previous Install Path

Installation – Fatal Error: Unable to Determine Previous Install Path Error/Message Fatal Error: Unable to determine previous install path. DataKeeper cannot be uninstalled or reinstalled. Description When performing a “Repair” or…

Server Login Accounts and Passwords Must Be Same on Each Server in the Cluster

DataKeeper Cluster Edition Technical Documentation » DataKeeper Troubleshooting » Known Issues and Workarounds » Server Login Accounts and Passwords Must Be Same on Each Server in the Cluster

The DataKeeper GUI cannot connect to the target server in a cluster if server Login Accounts and Passwords are different on each server. Error Message An Error Code 1326 will appear in the Application log (Note: The Error Code may also be a 2 with Event ID…

Clustering

DataKeeper Cluster Edition Technical Documentation » User Guide » Clustering

Running chkdsk on Cluster Volumes during Cluster Volume Online Creating a DataKeeper Volume Resource in WSFC Manual Creation of a Mirror in WSFC DataKeeper Volume Resource Health Check DataKeeper Volume Resource Private Properties Extending a Clustered DataKeeper…

Join SQL1 and SQL2 to the Domain

Step by Step SQL Server 2019 FCI in OCI » Join SQL1 and SQL2 to the Domain

User Interface – Failed to Create Mirror

DataKeeper Cluster Edition Technical Documentation » DataKeeper Troubleshooting » Known Issues and Workarounds » User Interface – Failed to Create Mirror

User Interface – Failed to Create Mirror, Event ID 137 Error/Message Failed to create the mirror. Event Id: 137 System Event Log Unable to initialize mirror on the target machine. Volume Device: Source Volume: E Target Machine: 10.17.103.135 Target Volume:…

Unexpected Order of the Upper Filters List May Cause Inability to Boot or Inability to Create Page Files

DataKeeper Cluster Edition Technical Documentation » DataKeeper Troubleshooting » Known Issues and Workarounds » Unexpected Order of the Upper Filters List May Cause Inability to Boot or Inability to Create Page Files

!This issue has been fixed in v10.0.1. Description If the Upper Filters registry key has the Upper filters listed in any order that does not have ExtMirr last, problems can occur. On Windows Server 2022, the server will not be able to boot. On Windows Server 2025,…

WSFC 2016 File Shares Cannot be Created for File Server Role Using Server Manager or Failover Cluster Manager

DataKeeper Cluster Edition Technical Documentation » DataKeeper Troubleshooting » Known Issues and Workarounds » Windows Server 2016 Specific Issues » WSFC 2016 File Shares Cannot be Created for File Server Role Using Server Manager or Failover Cluster Manager

Description Once a cluster File Server role is created, neither Server Manager nor Failover Cluster Manager can be used to initially create the share. Suggested Action Microsoft Article 2804526 provides a high level overview of several WSFC Server 2016 issues…

Directory for Bitmap Must Be Created Prior to Relocation

DataKeeper Cluster Edition Technical Documentation » DataKeeper Troubleshooting » Restrictions » Directory for Bitmap Must Be Created Prior to Relocation

Description If you choose to relocate the bitmap file from the default location (%EXTMIRRBASE%\Bitmaps), you must first create the new directory before changing the location in the registry and rebooting the system.

Getting Started

DataKeeper Cluster Edition Technical Documentation » User Guide » Getting Started

Choose Your Configuration DataKeeper can be utilized in a number of different configurations to facilitate a number of different functions including: Provide a second physical copy of your data Extend an existing WSFC cluster to a remote DR site Eliminate…

Using SIOS DataKeeper Standard Edition To Provide Disaster Recovery For Hyper-V Virtual Machines

DataKeeper Cluster Edition Technical Documentation » User Guide » Using SIOS DataKeeper Standard Edition To Provide Disaster Recovery For Hyper-V Virtual Machines

Considerations When preparing a Hyper-V environment that spans subnets, subnetting may need to be taken into consideration for any applications that are running inside the virtual machine. Some applications “hard code” IP addresses into their…

Using DKCE to Enable Multi-Site File Share Resources with Windows Server 2008R2 WSFC

DataKeeper Cluster Edition Technical Documentation » User Guide » Clustering » Using DKCE to Enable Multi-Site File Share Resources with Windows Server 2008R2 WSFC

Use the following procedure to protect File Share resources using SIOS DataKeeper and Microsoft Failover Cluster (WSFC). *IMPORTANT NOTE: DataKeeper Cluster Edition registration with Failover Cluster is automatic and occurs 60 seconds after detecting a Failover…

DataKeeper Volume Resource Private Properties

DataKeeper Cluster Edition Technical Documentation » User Guide » Clustering » DataKeeper Volume Resource Private Properties

A DataKeeper Volume resource includes several private properties that are used by DataKeeper Cluster Edition. Among these properties are: VolumeLetter (REG_SZ) – the volume letter that is replicated by DataKeeper and associated with this DataKeeper Volume…

Split-Brain Issue and Recovery

DataKeeper Cluster Edition Technical Documentation » User Guide » Clustering » Split-Brain Issue and Recovery

When protecting DataKeeper volume resources in Microsoft WSFC, if all nodes are included in the cluster split-brain recovery should occur automatically. However, in a Node Outside the Cluster scenario a split-brain may occur if network connectivity is lost to the DR…

DataKeeper Volume Resize

DataKeeper Cluster Edition Technical Documentation » User Guide » Working With Mirrors » DataKeeper Volume Resize

DataKeeper allows users to extend and shrink their DataKeeper volumes dynamically while retaining mirror settings. Once the resize is complete, a partial resync will be performed. Note: This resize procedure should be performed on only one volume at a time. !WARNING …

Server 2012: Server Manager “File and Storage Services” Disk Status

DataKeeper Cluster Edition Technical Documentation » FAQs » Server 2012: Server Manager “File and Storage Services” Disk Status

Question Why are DataKeeper Volumes that are being used in a Microsoft Failover Cluster not shown by Server Manager as “Clustered”? Answer On Server 2012, the new Server Manager tool is capable of detecting if a complete “Disk” is being used by Failover…

SETCONFIGURATION

DataKeeper Cluster Edition Technical Documentation » Using EMCMD with SIOS DataKeeper » SETCONFIGURATION

EMCMD SETCONFIGURATION This command sets the net alert settings (also referred to as “volume attributes”) for the volume. The parameters are: This can be either the source or the target system. The drive letter of the…

Relocation of Intent Log

DataKeeper Cluster Edition Technical Documentation » Understanding Replication » Relocation of Intent Log

To relocate the Intent Log (bitmap file), please perform the following on all servers involved: *LEAVE THE MIRROR IN THE MIRRORING STATE! Do not pause it and then move the bitmap file. *Note: DataKeeper only supports bitmaps on NTFS filesystems. If the bitmaps…

Non-mirrored Volume Resource

DataKeeper Cluster Edition Technical Documentation » User Guide » Clustering » Non-mirrored Volume Resource

A non-mirrored volume resource is a DataKeeper resource where no data is replicated to any node in the cluster. This resource type should only be used where the data is temporary and/or non-critical such as MS SQL Server tempdb space. In this case, when MS SQL restarts…

Provision the VMs

Step by Step SQL Server 2019 FCI in OCI » Provision the VMs

Now that the VCN is configured, it is time to start provisioning the VMs. In this example we are going to use Windows Server 2022 and SQL Server 2019. However, the steps described in this article are almost identical across all versions of Windows Server and SQL…

Configure Failover Clustering Feature

Step by Step SQL Server 2019 FCI in OCI » Configure Failover Clustering Feature

Enable the Failover Clustering Feature on both SQL1 and SQL2 Run this PowerShell command on SQL1 and SQL2 Install-WindowsFeature -Name Failover-Clustering -IncludeManagementTools Validate your Cluster Run this PowerShell command from SQL1 or SQL2 Test-Cluster…

Most Common DKCE Storage Solutions

DataKeeper Cluster Edition Technical Documentation » DataKeeper Troubleshooting » Solutions » DKCE Common Solutions » Most Common DKCE Storage Solutions

The following are the most commonly requested storage related solutions. Preparing Storage for DataKeeper Usage Preparing Storage for DataKeeper Usage Summary This video explains the procedure for creating/preparing storage for Datakeeper. It also addresses…

Creating the SQL Server FCI

Step by Step SQL Server 2019 FCI in OCI » Creating the SQL Server FCI

Install DataKeeper Cluster Edition Before you can proceed with the next steps, you must install DataKeeper Cluster Edition on SQL1 and SQL2. Download the setup executable and run the DataKeeper setup on both nodes. Refer to the SIOS documentation for specific guidance…

AWS Cross Region Support

DataKeeper Cluster Edition in a Cloud Environment » Deploying DataKeeper Cluster Edition in AWS » AWS Cross Region Support

Step By Step Configuring Amazon Ec2 For Business Critical Applications The diagram above generally shows an active/source node (in green) synchronously replicating to a passive node, both existing in the same region (Region A). Synchronous replication can also be…

SIOS DataKeeper Intent Log

DataKeeper Cluster Edition Technical Documentation » Understanding Replication » SIOS DataKeeper Intent Log

SIOS DataKeeper uses an intent log (also referred to as a bitmap file) to track changes made to the source, or to target volume during times that the target is unlocked. This log is a persistent record of write requests which have not yet been committed to both…

CHKDSK

DataKeeper Cluster Edition Technical Documentation » DataKeeper Troubleshooting » Restrictions » CHKDSK

If you must run CHKDSK on a volume that is being replicated by SIOS DataKeeper, it is recommended that you PAUSE the mirror before initiating the CHKDSK. After running CHKDSK, CONTINUE the mirror. A partial resync occurs (updating those writes generated by the CHKDSK)…

Install DataKeeper

DataKeeper Cluster Edition in a Cloud Environment » Configure a File Server Cluster in Azure Spanning Multiple Availability Zones(AZ) » Install DataKeeper

After the cluster is created, DataKeeper is installed. It is important to install DataKeeper after the initial cluster is created so the custom cluster resource type can be registered with the cluster. If you installed DataKeeper before the cluster was created you will…

DataKeeper Failover Clustering Resource DLL (DataKeeperVolume) Message Catalog

DataKeeper Cluster Edition Technical Documentation » DataKeeper Troubleshooting » Message Catalogs » DataKeeper Failover Clustering Resource DLL (DataKeeperVolume) Message Catalog

Use Control F to search for a specific error code. Code Severity Message Cause/Action 17 Info DataKeeper Cluster Resource ‘Online’ operation for Volume ‘Y:’ was successful. 18 …

DataKeeper Service (ExtMirrSvc) Message Catalog

DataKeeper Cluster Edition Technical Documentation » DataKeeper Troubleshooting » Message Catalogs » DataKeeper Service (ExtMirrSvc) Message Catalog

Use Control F to search for a specific error code. Code Severity Message Cause/Action 17 Info The SIOS DataKeeper Service version %1 is starting. 18 Warning The SIOS DataKeeper Service has been…

Solutions

DataKeeper Cluster Edition Technical Documentation » DataKeeper Troubleshooting » Solutions

- Cloud Environment - How to properly use AWS instance storage (ephemeral storage/disk) If SIOS AMIs are not being deployed on an AWS server, these disk initialization steps must be considered. This was introduced with Windows 2016 and continues in later…

AWS Issues and Workarounds

DataKeeper Cluster Edition Technical Documentation » FAQs » AWS Issues and Workarounds

Question What is the best practice for shutting down clustered VMs in AWS? Answer If shutting down the primary source node, all cluster roles depending on a SIOS DataKeeper Volume Resource should be placed in the Offline state. Also make sure all mirrors are in the…