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Setup of iSCSI Initiator on Windows 2012
DataKeeper Cluster Edition Technical Documentation » User Guide » Using Microsoft iSCSI Target With DataKeeper on Windows 2012 » Setup of iSCSI Initiator on Windows 2012
Once the virtual disks/targets are created, each of the cluster servers must initiate a connection to them via Microsoft’s iSCSI Initiator. From “Administrator Tools” in “Server Manager”, start “iSCSI Initiator”. Select the “Targets” tab and…
Windows Server 2016 Specific Issues
DataKeeper Cluster Edition Technical Documentation » DataKeeper Troubleshooting » Known Issues and Workarounds » Windows Server 2016 Specific Issues
For issues related to Windows Server 2016, see the following topic: ____________________________________________________________________________________________________________________ Occasional Job Creation Failure WSFC 2016 File Shares Cannot be Created…
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…
Installing and Using DataKeeper Cluster Edition on Windows Server 2008 R2 / 2012 Core Platforms
DataKeeper Cluster Edition Technical Documentation » User Guide » Clustering » Installing and Using DataKeeper Cluster Edition on Windows Server 2008 R2 / 2012 Core Platforms
Prepare the servers. Install Windows Server 2008 R2/2012 Core on two servers, configure IP, join a domain, configure firewall for remote administration, configure the server for remote access and install the Failover Cluster feature. Server Core Installation…
Using Microsoft iSCSI Target With DataKeeper on Windows 2012
DataKeeper Cluster Edition Technical Documentation » User Guide » Using Microsoft iSCSI Target With DataKeeper on Windows 2012
The following topics will guide you in setting up Microsoft iSCSI Target with DataKeeper via the user interface. *NOTE: This configuration is not supported in a VMware ESX environment. …
Creating Other Server Resource in WSFC
DataKeeper Cluster Edition Technical Documentation » User Guide » Clustering » Creating Other Server Resource in WSFC
When creating an Other Server resource in WSFC, you will be prompted for a storage resource (DataKeeper resource) twice. You will check the first one, but do not need to check the second dialog. Click the “checkbox” for the first dialog “Select…
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,…
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…
Step by Step SQL Server 2019 FCI in OCI
Step by Step SQL Server 2019 FCI in OCI
Introduction *The steps in this guide are very similar on all currently supported versions of Windows and SQL Server. If you are deploying business-critical applications in Oracle Cloud Infrastructure (OCI), it’s crucial to understand and leverage the…
Secondary Server Failures
DataKeeper Cluster Edition Technical Documentation » Administration » Secondary Server Failures
In the event there is a failure affecting the secondary (target) system, the affected mirror is marked Paused. It is necessary to correct the condition that caused the secondary to fail and then resync the volumes. There are no write attempts made to the target after…
Primary Server Shutdown
DataKeeper Cluster Edition Technical Documentation » Administration » Primary Server Shutdown
On a graceful shutdown of the source server, all pending writes to the target are completed. This ensures that all data is present on the target system. On an unexpected source server failure, the Intent Log feature eliminates the need to do a full resync after the…
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…
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.
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.
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.…
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…
Awareness of Windows Filenames and Directory Names
DataKeeper Cluster Edition Technical Documentation » FAQs » Awareness of Windows Filenames and Directory Names
Question Is SIOS DataKeeper aware of Windows filenames and directory names? Answer SIOS DataKeeper is implemented with a Windows kernel mode filter driver that sits above the physical disk driver but below the file system. As a result, the SIOS DataKeeper driver…
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…
Antivirus Software, Malware, etc. Exclusions for DataKeeper for Windows
DataKeeper Cluster Edition Technical Documentation » DataKeeper Troubleshooting » Known Issues and Workarounds » Antivirus Software, Malware, etc. Exclusions for DataKeeper for Windows
Description Antivirus software, Malware tools and other system security monitoring tools could interfere with the proper running of DataKeeper and stop DataKeeper from updating a DataKeeper registry key. All of the following should be considered as some can also…
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…
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
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…
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:…
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…
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…
Deploy an Active Directory Domain Controller in Azure
DataKeeper Cluster Edition in a Cloud Environment » Configure a File Server Cluster in Azure Spanning Multiple Availability Zones(AZ) » Deploy an Active Directory Domain Controller in Azure
Deploy a Virtual Machine that will work as a Domain Controller for the cluster that is going to be deployed. This step can be skipped if there is a Domain Controller already configured. *This Virtual Machine running a Domain Controller should be in a different…
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…
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…
System Event Log – Create Mirror Failed in the GUI
DataKeeper Cluster Edition Technical Documentation » DataKeeper Troubleshooting » Known Issues and Workarounds » System Event Log – Create Mirror Failed in the GUI
Error/Message Create Mirror Failed in the GUI. Description This can result if a vmms.exe program is holding on to volume and preventing SIOS DataKeeper from locking it.
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…
DataKeeper Cluster Edition Release Notes
DataKeeper Cluster Edition Release Notes
SIOS DataKeeper Cluster Edition Release Notes Version 8.11.0 Released June 26, 2025 !IMPORTANT: End of Support for 2012/2012 R2 SIOS has ended support for Microsoft Windows Server 2012/2012 R2 on October 10, 2024. LifeKeeper for Windows Version 8.9.2 is the…
Extending a Traditional 2-Node Cluster to a Shared-Replicated Configuration
DataKeeper Cluster Edition Technical Documentation » User Guide » Clustering » Extending a Traditional 2-Node Cluster to a Shared-Replicated Configuration
Add a Shared Node Using Windows Server 2008R2 or 2012 When using Windows Server 2008R2 or 2012, a 1×1 2-Node replicated cluster using DataKeeper Volumes can be extended to a 2×1 shared and replicated 3-Node cluster by using either of the following…
User Interface
DataKeeper Cluster Edition Technical Documentation » User Interface
SIOS DataKeeper User Interface The SIOS DataKeeper User Interface uses a standard MMC snap-in interface. The left pane displays the Console Tree view. This includes the Jobs and Reports. Currently, there are two reports available – Job Overview and Server…
DKCE Support Matrix
DKCE Support Matrix
Server Components Supported Operating System v8.9.0 v8.9.1 v8.9.2 v8.10.0 v8.10.1 v8.10.2 v8.11.0 Note: The operating system versions listed above are supported for guests running on the following…
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…
Most Common DKCE Clustering Solutions
DataKeeper Cluster Edition Technical Documentation » DataKeeper Troubleshooting » Solutions » DKCE Common Solutions » Most Common DKCE Clustering Solutions
The following are the most commonly requested clustering related solutions. Perform a Health Check How do I add/register an existing DataKeeper Volume to a cluster? Why has my Role FAILED in WSFC (e.g. SQL, SAP, FileShare, Hyper-V, Generic App)? For…
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…
Installing Localized Language Supplement
Installing Localized Language Supplement
LifeKeeper for Windows Localized Language Supplements are available to support LifeKeeper running in a localized environment. The Localized Language Supplement contains translated LifeKeeper GUI text strings and context-sensitive help in the localized language. For…
Components
DataKeeper Cluster Edition Technical Documentation » Components
DataKeeper Components SIOS DataKeeper for Windows is comprised of the following components: DataKeeper Driver (ExtMirr.sys) – The DataKeeper Driver is a kernel mode driver and is responsible for all mirroring activity between the mirror…
FAQs
DataKeeper Cluster Edition Technical Documentation » FAQs
Refer to this section for answers to the most frequently asked questions about SIOS DataKeeper and SIOS DataKeeper Cluster Edition. ______________________________________________________________________________________________________________ Add a New Disk / DK…
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;…
Third Party Product Files
DataKeeper Cluster Edition Installation Guide » Installation » Third Party Product Files
The following third party files were not developed by SIOS Technology Corp. but are installed during the DataKeeper installation process. Path and File Name Provider Purpose /lmdiag.exe /lmhostid.exe /lminstall.exe…
Creation of iSCSI Virtual Disks
DataKeeper Cluster Edition Technical Documentation » User Guide » Using Microsoft iSCSI Target With DataKeeper on Windows 2012 » Creation of iSCSI Virtual Disks
Perform the following on the primary server, wherever the iSCSI Target server is online at the moment. From Server Manager, navigate to File and Storage Services and select iSCSI. Click on the link “To create an iSCSI virtual disk, start the New iSCSI Virtual Disk…
User Guide
DataKeeper Cluster Edition Technical Documentation » User Guide
The topics in this section are designed to be a reference for you as you get started using SIOS DataKeeper Cluster Edition, helping you identify the type of configuration you are interested in implementing and providing detailed instructions for effectively using your…
Product Support Schedule
Product Support Schedule
For customers under an annual support agreement, SIOS Technology provides full support for its products for three years from their General Availability date. This support period is extended in situations where simple upgrade paths do not exist to later versions of SIOS…
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…
DataKeeper Cluster Edition Quick Start Guide
DataKeeper Cluster Edition Quick Start Guide
This topic provides step-by-step instructions for installing and configuring DataKeeper Cluster Edition. The series of steps includes links to the documentation that describe each step in detail. Prerequisites and Installation Read the DataKeeper Cluster Edition…
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…
Firewall Configurations
DataKeeper Cluster Edition Technical Documentation » Configuration » Firewall Configurations
SIOS DataKeeper cannot function properly if the firewall settings for the source and target machines are not configured correctly. This means you will need to configure a rule for inbound and outbound connections on each server running SIOS DataKeeper as well as any…
Summary
Step by Step SQL Server 2019 FCI in OCI » Summary
This technical guide provides a comprehensive overview of setting up a SQL Server 2019 Failover Cluster Instance (FCI) in Oracle Cloud Infrastructure (OCI). It begins by highlighting the importance of understanding OCI’s availability SLAs, which differ based on…
Installing Core
DataKeeper Cluster Edition Installation Guide » Installation » Installing Core
Installing the DataKeeper Cluster Edition Core Software SIOS DataKeeper Cluster Edition uses the Flexera InstallShield product to provide a standard installation interface. A license must be obtained and installed for each server in the cluster. We recommend that you…
ReadOnly Host Caching
DataKeeper Cluster Edition in a Cloud Environment » Deploying DataKeeper Cluster Edition in Azure » ReadOnly Host Caching
According to this Microsoft article, caching is not recommended on disks hosting SQL/Server log files. If the workload is heavily utilizing the underlying disks (any other application than SQL/Server), disk caching should also be set to none. Please refer to…
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…
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
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, the server will not be able to create page…
Known Issues and Workarounds
DataKeeper Cluster Edition Technical Documentation » DataKeeper Troubleshooting » Known Issues and Workarounds
Included below are known issues open against DataKeeper and DataKeeper Cluster Edition as well as possible workarounds and/or solutions. __________________________________________________________________________________________________________________ Access to…
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…
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…
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…
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…
Add the Secondary IP Addresses
Step by Step SQL Server 2019 FCI in OCI » Add the Secondary IP Addresses
In order for Windows Server Failover Clustering to work properly in OCI, you have to add the cluster IP address as a secondary address on the virtual network interface (VNIC) attached to SQL1 and SQL1. As you recall, we discussed using the following IP addresses on…
Performance Monitor Counters
DataKeeper Cluster Edition Technical Documentation » Understanding Replication » Performance Monitor Counters
SIOS DataKeeper provides counters that extend Performance Monitor with statistics about the status of mirroring on volumes. The counters are installed during the full installation of SIOS DataKeeper software. To access the counters, do the following: On a…
Most Common DKCE Installation Solutions
DataKeeper Cluster Edition Technical Documentation » DataKeeper Troubleshooting » Solutions » DKCE Common Solutions » Most Common DKCE Installation Solutions
The following are the most commonly requested installation related solutions. How do I get and install my license(s)? Where can I get the latest software? (Log into the Customer Portal to access) Why can’t I create a new mirror? Firewall…
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…
Most Common DKCE Networking Solutions
DataKeeper Cluster Edition Technical Documentation » DataKeeper Troubleshooting » Solutions » DKCE Common Solutions » Most Common DKCE Networking Solutions
The following are the most commonly requested networking related solutions. SIOS DataKeeper Service Will Not Start DataKeeper Service Stopped Unexpectedly Issues/Symptoms: The DataKeeper Service periodically stops. The System Event Viewer will produce the…
Silent Installation
DataKeeper Cluster Edition Installation Guide » Installation » Silent Installation
!When creating a response file, ensure that ALL dialog boxes have been responded to, including the final dialog box specifying when the system should reboot. Not providing a response for all dialog boxes will result in a faulty response file. To resolve a faulty…
Network Bandwidth
DataKeeper Cluster Edition Technical Documentation » Configuration » Network Bandwidth
Because DataKeeper can replicate data across any available network, special consideration must be given to the question, “Is there sufficient bandwidth to successfully replicate the volume and keep the mirror in the mirroring state as the source volume is updated…
Network Adapter Settings
DataKeeper Cluster Edition Technical Documentation » Configuration » Network Adapter Settings
*DataKeeper supports SMB1, SMB2 and SMB3, however the Transparent Failover feature which became available in SMB3 is NOT supported. !These paths may not work for some platforms (Windows 2012 R2, 2016, 2019), but to ensure the GUI operates properly be sure to have…
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…
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…
Using Volume Shadow Copy
DataKeeper Cluster Edition Technical Documentation » FAQs » Using Volume Shadow Copy
Question Can Volume Shadow Copy (VSS) be Used with DataKeeper Volumes? Answer VSS Shadow Copy can be enabled for DataKeeper volumes. However, the following guidelines apply: VSS snapshot images must not be stored on a DataKeeper volume. Storing VSS snapshots on…
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…
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…
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…
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)…
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…
DataKeeper Target Snapshot
DataKeeper Cluster Edition Technical Documentation » User Guide » DataKeeper Target Snapshot
Overview *The TAKESNAPSHOT command does not work with mirrors that have different drive letters. DataKeeper’s target snapshot feature, integrated with both DataKeeper and DataKeeper Cluster Edition, is the process of creating point in time copies of replicated…
Best Practices
DataKeeper Cluster Edition in a Cloud Environment » Deploying DataKeeper Cluster Edition in AWS » Best Practices
The following recommendations should be followed for optimal performance. They include considerations specific to both the Windows operating system and AWS Cloud configuration. The primary component of SIOS DataKeeper is an upper filter volume driver. This driver…
DataKeeper Service Log On ID and Password Selection
DataKeeper Cluster Edition Technical Documentation » Components » DataKeeper Service Log On ID and Password Selection
During a new DataKeeper installation setup, the user will be prompted for a DataKeeper Service Log On ID and Password. The DataKeeper Service uses authenticated connections to perform volume switchovers and make mirror role changes across multiple servers. The Log On…
DataKeeper Intent Log files on AWS Ephemeral Storage
DataKeeper Cluster Edition Technical Documentation » User Guide » DataKeeper Intent Log files on AWS Ephemeral Storage
DataKeeper systems that are running on AWS instances which are configured with local instance storage (i.e. ephemeral disks) can use the instance storage to store DataKeeper intent log files (i.e. bitmap files). It is important to be sure that when using AWS ephemeral…
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…
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…
WSFC – MS DTC Resource Failure
DataKeeper Cluster Edition Technical Documentation » DataKeeper Troubleshooting » Known Issues and Workarounds » WSFC – MS DTC Resource Failure
Error/Message The cluster resource host subsystem (RHS) stopped unexpectedly. An attempt will be made to restart it. This is usually due to a problem in a resource DLL. Please determine which resource DLL is causing the issue and report the problem to the resource…
IMPORTANT NOTICE
DataKeeper Cluster Edition Release Notes » IMPORTANT NOTICE
During a review of the current releases of LifeKeeper for Windows and DataKeeper Cluster Edition, we discovered a memory leak issue in ExtMirrSvc.exe within DataKeeper. This issue is limited to LifeKeeper for Windows and DataKeeper versions 8.8.0 and…
Localized Language Supplement
DataKeeper Cluster Edition Installation Guide » Installation » Localized Language Supplement
For information regarding the Localized Language Supplement, please refer to Installing LifeKeeper for Windows Localized Language Supplement in the LifeKeeper for Windows Documentation.
Error Messages Log
DataKeeper Cluster Edition Technical Documentation » FAQs » Error Messages Log
Question Where does DataKeeper log error messages? Answer DataKeeper events are logged in the Windows Application Event Log and the Windows System Event Log. Here is a breakdown of the messages you can look for. Application Event Log: Source = ExtMirrSvc –…
Using Disk Management
DataKeeper Cluster Edition Technical Documentation » Administration » Using Disk Management
When using the Windows Disk Management utility to access SIOS DataKeeper volumes, please note the following: Using Disk Management to delete partitions that are being mirrored is not supported. Deleting a partition that is part of a SIOS DataKeeper mirror will yield…
New-DataKeeperMirror
DataKeeper Cluster Edition Technical Documentation » Using DKPwrShell with SIOS DataKeeper » New-DataKeeperMirror
This cmdlet is used to create a new DataKeeper mirror. Mirrors created with this cmdlet will be visible in the DataKeeper SnapIn (Reports > Server Overview). If a job exists that includes information that matches this mirror (systems, IP Addresses, Volumes, and Sync…
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…
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…
Switchover and Failover with Multiple Targets
DataKeeper Cluster Edition Technical Documentation » User Guide » Configuring Mirrors » Switchover and Failover with Multiple Targets
In a multiple target configuration, it is important to understand how DataKeeper mirrors will work in the following scenarios: Manual switchover to a target server Source server failure followed by a manual switchover to a target server Example: In the…
Network Disconnect
DataKeeper Cluster Edition Technical Documentation » FAQs » Network Disconnect
Scenario #1 In a 2-Node, non-clustering configuration (1×1) replicating a 100TB volume between Source server and Target server over a WAN connection, the network goes down for twenty minutes. Question In this scenario, what would happen to the Mirror State with…
Disable “Automatically manage paging file size for all drives”
DataKeeper Cluster Edition Technical Documentation » Configuration » Disable “Automatically manage paging file size for all drives”
By default, Windows configures virtual memory so that page files are automatically created on volumes as the Operating System determines is best. This Virtual Memory setting is called “Automatically manage paging file size for all drives”. When this…
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…
High-Speed Storage Best Practices
DataKeeper Cluster Edition Technical Documentation » Configuration » High-Speed Storage Best Practices
Configure Bitmaps If the DataKeeper default bitmap location (%ExtMirrBase%\Bitmaps) is not located on high-speed storage, you should move the bitmaps to a high-speed storage device in order to eliminate I/O bottlenecks with bitmap access. To do this, allocate a small…
Bitmap Writes Unexpectedly Fail When Any Volume is Removed (disk offline or partition deleted)
DataKeeper Cluster Edition Technical Documentation » DataKeeper Troubleshooting » Known Issues and Workarounds » Bitmap Writes Unexpectedly Fail When Any Volume is Removed (disk offline or partition deleted)
Problem: The issue causes bitmap writes to unexpectedly fail when any volume is removed (disk offline or partition deleted) from a system (PW-16197). This issue is limited to DataKeeper v8.10.2 and v8.11.0 (when used with LifeKeeper or Windows Server Failover…
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…
Volume Considerations
DataKeeper Cluster Edition Technical Documentation » Understanding Replication » Volume Considerations
SIOS DataKeeper primary and secondary systems have three types of volumes: system, non-mirrored and mirrored. During mirroring operations, system and non-mirrored volumes are not affected and the user has full access to all applications and data on these…
DataKeeper Notification Icon
DataKeeper Cluster Edition Technical Documentation » User Guide » DataKeeper Notification Icon
Mirror Status Notification The DataKeeper Notification Icon is an application that will show a summary of your DataKeeper mirrors in the Windows Notification Tray. The icon displayed indicates what conditions have been detected, with the following priority. Error:…