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Principles of Operation

Application Recovery Kits » Recovery Kit for Oracle Cloud Infrastructure Administration Guide » Principles of Operation

The Recovery Kit for Oracle Cloud Infrastructure (RK for OCI) manages the assignment of secondary private IP addresses to Virtual Network Interface Cards (VNICs) so that clients on the OCI can connect to the LifeKeeper-protected IP resources (virtual IP…

Recovery Kit for EC2™ Principles of Operation

Application Recovery Kits » Recovery Kit for EC2™ Administration Guide » Recovery Kit for EC2™ Principles of Operation

Recovery Kit for EC2™ provides two functions. The Route Table scenario (Backend Cluster) manages Route Table for LifeKeeper-protected IP resources to be reached from clients within the Amazon VPC™. The Elastic IP scenario (Frontend Cluster) manages Elastic IP…

IP Recovery Kit Principles of Operation

Application Recovery Kits » IP Recovery Kit Administration Guide » IP Recovery Kit Principles of Operation

Virtual IP Resource LifeKeeper brings an IP resource into service by creating an IP alias address on one of the physical network interfaces on the primary server. Users connect to the node using this alias address. The IP Recovery Kit software performs checks to help…

EC2 Parameters List

Parameters List » EC2 Parameters List

The table below lists the EC2 parameters. These values are set by adding them to the /etc/default/LifeKeeper configuration file. Because none of the components of the Recovery Kit for EC2 are memory resident, changes to these particular values become effective…

EC2™ Event Table

Application Recovery Kits » Recovery Kit for EC2™ Administration Guide » Recovery Kit for EC2™ Configuration » EC2™ Event Table

The following table contains the Recovery Kit for EC2™ specific event and associated trap number. The event will generate email notices when LK_NOTIFY_ALIAS is set. LifeKeeper Event/Description Trap # Object ID AWS API failure 180…

Extending Your EC2™ Hierarchy

Application Recovery Kits » Recovery Kit for EC2™ Administration Guide » Recovery Kit for EC2™ Configuration » Extending Your EC2™ Hierarchy

After you have created a hierarchy, you must extend that hierarchy to another server in the cluster. There are three possible scenarios to extend your resource instance from the template server to a target server. Continue from creating the resource into extending…

EC2™ User System Setup

Application Recovery Kits » Recovery Kit for EC2™ Administration Guide » Recovery Kit for EC2™ Configuration » EC2™ User System Setup

Route Table scenario (Backend Cluster): The Route Table protection option in the Recovery Kit for EC2™ provides the ability to automatically update the routing in the VPC. During a failover the recovery kit will update the route table to reflect the new Elastic…

Unextending Your EC2™ Hierarchy

Application Recovery Kits » Recovery Kit for EC2™ Administration Guide » Recovery Kit for EC2™ Configuration » Unextending Your EC2™ Hierarchy

To unextend a hierarchy complete the following steps: From the LifeKeeper GUI menu, select Edit, then Resource. From the dropdown menu, select Unextend Resource Hierarchy. Select the Target Server that you are unextending from the EC2™ resource. It cannot be…

Creating the First EC2 Instance

Evaluation Guides » LifeKeeper Evaluation Guide for Cloud Environments » Configuring Network Components and Creating Instances » Creating an Instance in AWS from Scratch » Creating the First EC2 Instance

In previous sections we covered configuration of the network. Now we are going to create the first instance. As discussed in Computing Resources Used in this Tutorial, we need two disks. This section also describes how to create the second disk. Go to “EC2”…

Changing Replication and Operation Modes

Application Recovery Kits » SAP HANA Recovery Kit Administration Guide » SAP HANA Resource Hierarchy Administration » Changing Replication and Operation Modes

!While the replication and operation modes may be changed for the secondary replication site, the user should never perform a manual takeover or switchover of SAP HANA System Replication outside of LifeKeeper. Doing so will result in an error state in which the SAP…

Recovery Kit for EC2 Message Catalog

Search for an Error Code » Combined Message Catalog » Recovery Kit for EC2 Message Catalog

The Recovery Kit for EC2 Message Catalog below contains listings of all messages that may be encountered while utilizing the Recovery Kit for EC2. The Combined Message Catalog provides a listing of all messages that may be encountered while using LifeKeeper for Linux…

Recovery Kit for EC2™ Requirements

Application Recovery Kits » Recovery Kit for EC2™ Administration Guide » Recovery Kit for EC2™ Requirements

Before attempting to install or remove the Recovery Kit for EC2™ you must understand Amazon Web Service software requirements, as well as the installation and removal procedures for the Recovery Kit for EC2™ package. Amazon Web Service and Software…

EC2™ Local Recovery and Configuration

Application Recovery Kits » Recovery Kit for EC2™ Administration Guide » Recovery Kit for EC2™ Configuration » EC2™ Local Recovery and Configuration

Local Recovery scenario (Backend Cluster): When a failure of the protected Route Table is detected by Recovery Kit for EC2™, the resulting failure triggers the execution of the EC2™ local recovery script. The local recovery gathers specified IP resource entries in…

Recovery Kit for EC2™ Troubleshooting

Application Recovery Kits » Recovery Kit for EC2™ Administration Guide » Recovery Kit for EC2™ Configuration » Recovery Kit for EC2™ Troubleshooting

The Message Catalog provides a list of all messages that may be encountered while using LifeKeeper for Linux and, where appropriate, provides additional explanation of the cause of the errors and necessary action to resolve the error condition. This full listing may be…

Creating an EC2™ Resource Hierarchy

Application Recovery Kits » Recovery Kit for EC2™ Administration Guide » Recovery Kit for EC2™ Configuration » Creating an EC2™ Resource Hierarchy

To create a resource instance from the primary server, complete the following steps: From the LifeKeeper GUI menu, select Edit, then Server. From the drop down menu, select Create Resource Hierarchy. A dialog box will appear with a drop down list showing all of…

Recovery Kit for EC2™ Configuration

Application Recovery Kits » Recovery Kit for EC2™ Administration Guide » Recovery Kit for EC2™ Configuration

To ensure that your LifeKeeper configuration provides the protection and flexibility you require you’ll need to be aware of the configuration requirements. To appropriately plan your configuration you must understand Amazon, Amazon Virtual Private Cloud, (VPC),…

Deleting an EC2™ Resource Hierarchy

Application Recovery Kits » Recovery Kit for EC2™ Administration Guide » Recovery Kit for EC2™ Configuration » Deleting an EC2™ Resource Hierarchy

To delete a resource hierarchy from all of the servers in your LifeKeeper environment, complete the following steps: From the LifeKeeper GUI menu, select Edit, then Resource. From the dropdown menu, select Delete Resource Hierarchy. Select the name of the Target…

EC2™ Resource Monitoring and Configuration

Application Recovery Kits » Recovery Kit for EC2™ Administration Guide » Recovery Kit for EC2™ Configuration » EC2™ Resource Monitoring and Configuration

Route Table scenario (Backend Cluster): The recovery kit uses AWS CLI to perform the monitoring of the Route Table settings to enable access from clients within the VPC to the protected IP resources. The recovery kit ensures that the target of the IP resources for all…

Assign Permission to Use EC2 Recovery Kit

Evaluation Guides » LifeKeeper Evaluation Guide for Cloud Environments » Install LifeKeeper for Linux » Amazon Web Services » Assign Permission to Use EC2 Recovery Kit

!In order to complete the following steps, the AWS CLI must be installed on each node. See Additional Environment Specific Tasks to Complete for more information. To use the EC2 Recovery Kit, the instance must have Roles that are allowed to update the RouteTable…

Creating an AWS EC2 Resource (RouteTable Scenario)

Evaluation Guides » LifeKeeper Evaluation Guide for Cloud Environments » Protecting Our Resources » Switching between Nodes in a Cloud Environment » Creating an AWS EC2 Resource (RouteTable Scenario)

Here we will discuss how the Route Table can be used to switch between nodes by creating an entry in the Route Table that points to the active node. Create an IP Resource Now you can create an IP resource. Note that the IP address of the resource must be located…

Recovery Kit for EC2™ Administration Guide

Application Recovery Kits » Recovery Kit for EC2™ Administration Guide

The Recovery Kit for EC2™ provides a mechanism to recover an Elastic IP from a failed primary server to a backup server. It also provides a mechanism to enable the IP Recovery Kit to work in multiple availability zones. Please see the Principles of Operation for a…

EC2 Recovery Kit – Known Issues / Restrictions

LifeKeeper for Linux Technical Documentation » LifeKeeper » Troubleshooting » Known Issues and Restrictions » EC2 Recovery Kit – Known Issues / Restrictions

Description Even though the EC2 instance has been granted sufficient privileges, a warning indicating insufficient privileges is displayed when attempting to create an EC2 resource (the route table scenario), resulting in the failure of resource…

Recovery Kit for EC2™ Operations Overview

Application Recovery Kits » Recovery Kit for EC2™ Administration Guide » Recovery Kit for EC2™ Operations Overview

Each operation is performed based on the AWS CLI provided by Amazon Web Services. The Recovery Kit for EC2 works differently depending on the resource type specified during resource creation. Please refer to the following depending on the resource type you are…

Creating an AWS EC2 Resource (Elastic IP Scenario)

Evaluation Guides » LifeKeeper Evaluation Guide for Cloud Environments » Protecting Our Resources » Switching between Nodes in a Cloud Environment » Creating an AWS EC2 Resource (Elastic IP Scenario)

Here we will discuss how to switch between nodes using an Elastic IP address by creating an entry that points to the active node. Assign Permission to Update Route Table Entries to Instances !To complete the steps below, the AWS CLI must be installed on each…

Adjusting Recovery Kit for EC2™ Tunable Values

Application Recovery Kits » Recovery Kit for EC2™ Administration Guide » Recovery Kit for EC2™ Configuration » Adjusting Recovery Kit for EC2™ Tunable Values

For the parameters that can be configured in the Recovery Kit for EC2™, refer to the EC2™ Parameters List.

Setting up EC2™ from the Command Line (LKCLI)

Application Recovery Kits » Recovery Kit for EC2™ Administration Guide » Recovery Kit for EC2™ Configuration » Setting up EC2™ from the Command Line (LKCLI)

You can set up the Recovery Kit for EC2™ through the use of the LKCLI (Command Line Interface). Creating/Extending/Configuring the EC2™ resource from the Command Line create EC2 EXAMPLE: #lkcli resource create ec2 --tag --type --switchback …

Installation of the Database

Application Recovery Kits » SAP Recovery Kit Administration Guide » SAP Installation » Installation of the Database

Note the group id for dba and oinstall as this will be needed for the backup machine. Change to the software directory and run the following: ./sapinst SAPINST_USE_HOSTNAME={database connectivity virtual ip address} Run SAPinst to install the Database…

Out-of-Service Resource Dialog

LifeKeeper for Linux Technical Documentation » LifeKeeper » User Guide » Dialogs » Out-of-Service Resource Dialog

Select a Resource. This dialog provides a list containing the names of all resources that are in service in your LifeKeeper cluster. Select the resource that you want to take out of service. *Note: If you initiated the Out-of-Service task by right-clicking from the…

Viewing the Status of Resources

LifeKeeper for Linux Technical Documentation » LifeKeeper » User Guide » Using LifeKeeper for Linux » Common Tasks » Viewing the Status of Resources

The status or state of a resource is displayed in two formats: Global Resource Status (across all servers), and the Server Resource Status (on a single server). The global resource status is shown in the Resource Hierarchy Tree in the left pane of the status window.…

Running Multiple Instances of Samba

Application Recovery Kits » Samba Recovery Kit Administration Guide » Configuring Samba with LifeKeeper » Running Multiple Instances of Samba

Running multiple instances of Samba in a LifeKeeper cluster introduces additional configuration requirements and restrictions. The following Samba configuration scenarios may involve multiple instances of Samba: Active/Standby configuration with multiple LifeKeeper…

Installation of the Core Services

Application Recovery Kits » SAP Recovery Kit Administration Guide » SAP Installation » Installation of the Core Services

Before installing software, make sure that the date/time is synchronized on all servers. This is important for both LifeKeeper and SAP. The Core Services, ABAP and Java Central Services (ASCS and SCS), are single points of failure (SPOFs) and therefore must be…

List of Parameters for Quorum

LifeKeeper for Linux Technical Documentation » LifeKeeper » Installation and Configuration » LifeKeeper I/O Fencing Introduction » Quorum/Witness » List of Parameters for Quorum

Please refer to the Quorum Parameters List.

Recovering Out-of-Service Hierarchies

LifeKeeper for Linux Technical Documentation » LifeKeeper » Troubleshooting » Recovering Out-of-Service Hierarchies

As a part of the recovery following the failure of a LifeKeeper server, resource hierarchies that are configured on the failed server, but are not in-service anywhere at the time of the server failure, are recovered on the highest priority alive server at the time of…

Benefits of LifeKeeper for Linux

Evaluation Guides » LifeKeeper Evaluation Guide for Cloud Environments » Before Starting an Evaluation of LifeKeeper for Linux » Benefits of LifeKeeper for Linux

SIOS software supports multiple operating system versions and flavors (both Linux and Windows). Consistent user experience to protect mission-critical resources regardless of the operating system. SIOS delivers high availability solutions for multiple…

Test Switchover of the Oracle Resource

Evaluation Guides » LifeKeeper Evaluation Guide for Cloud Environments » Protecting Our Resources » How to Protect Other Resources (Databases or Applications) » Protecting an Oracle Resource (non-PDB) » Test Switchover of the Oracle Resource

Understanding the Status from Command Line Tools Before testing the switchover, review the status of each node. Understand the Status of the File System The easiest way to check the status is using df. The /datakeeper resource is attached to the node and is…

Overview of LifeKeeper Event Email Notification

LifeKeeper for Linux Technical Documentation » LifeKeeper » Installation and Configuration » LifeKeeper Event Email Notification » Overview of LifeKeeper Event Email Notification

LifeKeeper Event Email Notification is a mechanism by which one or more users may receive email notices when certain events occur in a LifeKeeper cluster. LifeKeeper has an event notification mechanism for registering applications that wish to be notified of specific…

Viewing the Status of a Server

LifeKeeper for Linux Technical Documentation » LifeKeeper » User Guide » Using LifeKeeper for Linux » Common Tasks » Viewing the Status of a Server

The state of a server can be determined by looking at the graphic representation of the server in the table’s header as shown below. Server State Visual state What it Means ALIVE Client has valid connection to the…

Taking a Resource Out of Service

LifeKeeper for Linux Technical Documentation » LifeKeeper » User Guide » Using LifeKeeper for Linux » Operator Tasks » Taking a Resource Out of Service

*Note: LifeKeeper takes resources out of service from the top of the hierarchy and works its way down to the other resources. When taking resources out of service if you want the entire hierarchy (parent with the child resources) to be taken out of service, take the…

[Global] Section of the Configuration File

Application Recovery Kits » Samba Recovery Kit Administration Guide » Configuring Samba with LifeKeeper » [Global] Section of the Configuration File

The [global] section is a special section in the configuration file that must appear in every configuration file used in a LifeKeeper Samba resource hierarchy. As the name implies, any options set in this section apply to all other sections unless that directive is…

[Printers] Section of the Configuration File

Application Recovery Kits » Samba Recovery Kit Administration Guide » Configuring Samba with LifeKeeper » [Printers] Section of the Configuration File

The [printers] section handles connection attempts to printers on a Samba server if it is not specifically defined as a share. LifeKeeper does not protect printer shares via this special section nor through the global directive load printers. Each LifeKeeper-protected…

[Homes] Section of the Configuration File

Application Recovery Kits » Samba Recovery Kit Administration Guide » Configuring Samba with LifeKeeper » [Homes] Section of the Configuration File

The [homes] section is a special section in the configuration file to handle connection attempts to a user’s home directory on a Samba server if it is not specifically defined as a share. LifeKeeper does not protect users’ home directories via this special share;…

Taking a Resource Out of Service

LifeKeeper Web Management Console (LKWMC) » LKWMC GUI Operations and Layout » Resource » Resource Tree » Taking a Resource Out of Service

*This documentation section describes the LifeKeeper Web Management Console (LKWMC). Refer to the LifeKeeper Web Management Console for an overview. There are two ways to take a resource hierarchy out of service. Click the Operations button in the Resource Tree and…

Installation of Additional Application Server Instances

Application Recovery Kits » SAP Recovery Kit Administration Guide » SAP Installation » Installation of Additional Application Server Instances

It is recommended that Additional Application Server Instances be installed to create redundancy. Application Server Instances are not SPOFs, therefore, they do not need to be included in the cluster. On every additional application server instance host, do the…

Overview of LifeKeeper Event Forwarding via SNMP

LifeKeeper for Linux Technical Documentation » LifeKeeper » Installation and Configuration » LifeKeeper Event Forwarding via SNMP » Overview of LifeKeeper Event Forwarding via SNMP

The Simple Network Management Protocol (SNMP) defines a device-independent framework for managing networks. Devices on the network are described by MIB (Management Information Base) variables that are supplied by the vendor of the device. An SNMP agent runs on each…

Common Causes of a LifeKeeper Initiated Failover

LifeKeeper for Linux Technical Documentation » LifeKeeper » Troubleshooting » Common Causes of a LifeKeeper Initiated Failover

In the event of a failure, LifeKeeper has two methods of recovery: local recovery and inter-server recovery. If local recovery fails, a “failover” is implemented. A failover is defined as automatic switching to a backup server upon the failure or abnormal…

Structure of LCD Directory in /opt/LifeKeeper

LifeKeeper for Linux Technical Documentation » LifeKeeper » User Guide » Using LifeKeeper for Linux » Advanced Tasks » LCD » Structure of LCD Directory in /opt/LifeKeeper

The following diagram shows the directory structure of /opt/LifeKeeper.

Share Definition Sections of the Configuration File

Application Recovery Kits » Samba Recovery Kit Administration Guide » Configuring Samba with LifeKeeper » Share Definition Sections of the Configuration File

All other sections in the configuration file define the file and/or print shares that clients can attempt to access for this instance. A configuration file must have one or more shares defined. The Samba configuration file can contain file shares only, print shares…

Viewing the Status of a Communication Path

LifeKeeper Web Management Console (LKWMC) » LKWMC GUI Operations and Layout » Server » Communication Path » Viewing the Status of a Communication Path

*This documentation section describes the LifeKeeper Web Management Console (LKWMC). Refer to the LifeKeeper Web Management Console for an overview. Clicking the Communication Path menu item in the Server section of the left menu will display a list of all…

Taking a DataKeeper Resource Out of Service

LifeKeeper for Linux Technical Documentation » DataKeeper » SIOS DataKeeper Installation and Configuration » Resource Configuration Tasks » Taking a DataKeeper Resource Out of Service

Taking a DataKeeper resource out of service removes LifeKeeper protection for the resource. It breaks the mirror, unmounts the file system (if applicable), stops the md device and kills the nbd server and client. !WARNING: Do not take your DataKeeper resource out of…

Installation of the Primary Application Server Instance

Application Recovery Kits » SAP Recovery Kit Administration Guide » SAP Installation » Installation of the Primary Application Server Instance

To install the Primary Application Server instance, rerun sapinst from the previously mentioned directory. ./sapinst SAPINST_USE_HOSTNAME= When prompted, Select Primary Application Server Instance and continue with installation using the appropriate SAP…

Before Starting an Evaluation of LifeKeeper for Linux

Evaluation Guides » LifeKeeper Evaluation Guide for Cloud Environments » Before Starting an Evaluation of LifeKeeper for Linux

This section discusses general topics to consider when evaluating software bringing High Availability to mission-critical workloads. High Availability, RTO, and RPO LifeKeeper for Linux – Integrated Components Benefits of LifeKeeper for Linux How…

How to Create Data Replication of a File System

Evaluation Guides » LifeKeeper Evaluation Guide for Cloud Environments » Protecting Our Resources » How to Create Data Replication of a File System

As discussed in How Does Data Replication between Nodes Work, DataKeeper creates a NetRAID Device which works as RAID1 device. This guide uses the following parameters as examples. Replace these parameters based on the local environment that DataKeeper is being…

Failure During Rolling Upgrade of a Pre-9.7.0 Cluster

Application Recovery Kits » SAP HANA Recovery Kit Administration Guide » SAP HANA Troubleshooting » Failure During Rolling Upgrade of a Pre-9.7.0 Cluster

What if a failure occurs in the middle of a rolling upgrade of a pre-9.7.0 cluster? A user with an existing HANA resource hierarchy should generate an lkbackup archive before upgrading from a pre-9.7.0 version of LifeKeeper to version 9.7.0 or later to allow for…

Postfix Resource In-Service / Out-of-Service / Health Monitoring Error Messages

Application Recovery Kits » Postfix Recovery Kit Administration Guide » Postfix Troubleshooting » Postfix Resource In-Service / Out-of-Service / Health Monitoring Error Messages

Error Error Message Master process of postfix is not running The master process of Postfix is not running. Please check the Postfix error log. Failed in a check by postfix command Postfix command check option has failed.…

Measuring Rate of Change on a Linux System (Physical or Virtual)

LifeKeeper for Linux Technical Documentation » DataKeeper » SIOS DataKeeper Installation and Configuration » Network Bandwidth Requirements » Measuring Rate of Change on a Linux System (Physical or Virtual)

Data can be replicated across any available network. In Wide Area Network (WAN) configurations, special consideration must be given to the question, “Is there sufficient bandwidth to successfully replicate the partition and keep the mirror in the mirroring state…

Considering the Use of LifeKeeper I-O Fencing – AWS VPC Peering

Quick Start Guides » Connection Between LifeKeeper Cluster and Clients Using AWS Transit Gateway Quick Start Guide » Considerations for Settings and Operations in AWS VPC Peering » Considering the Use of LifeKeeper I-O Fencing – AWS VPC Peering

Since an AWS environment does not support shared disk configurations, SCSI reservations cannot be used to prevent split brain scenarios. For this reason, consider using the Quorum/Witness Server or STONITH, LifeKeeper’s I/O fencing functionality, to operate more…

APP – LifeKeeper Commands Related to Resource Applications (Group of Related Types)

LifeKeeper for Linux Technical Documentation » Command Line Interface » Commands » APP – LifeKeeper Commands Related to Resource Applications (Group of Related Types)

app_create - Creates a given resource application on a given node Options: -d -a app_remove - Removes the given application from the configuration database set of known applications on the specified system (or local system if no additional system is specified…

Considering the Use of Quorum/Witness or STONITH when Connecting to a LifeKeeper Cluster using AWS

Quick Start Guides » Multi-VPC Cluster Configuration Using AWS VPC Peering Connections Quick Start Guide » Connecting to a LifeKeeper Cluster using AWS Settings and Operations Considerations » Considering the Use of Quorum/Witness or STONITH when Connecting to a LifeKeeper Cluster using AWS

Since the shared disk environment cannot be used in an AWS environment, you cannot use SCSI reservations to prevent a split-brain. Also, an IP resource may cause the split-brain as it uses the real IP resource with different IP addresses for each node. For this…

Recovery Kit for Oracle Cloud Infrastructure Administration Guide

Application Recovery Kits » Recovery Kit for Oracle Cloud Infrastructure Administration Guide

Recovery Kit for Oracle Cloud Infrastructure (RK for OCI) The RK for OCI provides a mechanism for using virtual IP addresses with the IP Recovery Kit on Oracle Cloud Infrastructure (OCI). For more information on the functionalities, scenarios and operations of the RK…

AWS Direct Connect Requirements

Quick Start Guides » AWS Direct Connect Quick Start Guide » AWS Direct Connect Requirements

The following is a summary of requirements that should be met for an AWS environment and instances created on it. Requirements for AWS Environment Create a base environment on AWS to provide services. The requirements for using this configuration are as…

Connecting to a LifeKeeper Cluster using AWS Requirements

Quick Start Guides » Multi-VPC Cluster Configuration Using AWS VPC Peering Connections Quick Start Guide » Connecting to a LifeKeeper Cluster using AWS Requirements

Some requirements should be met when using this configuration. Below is a summary of requirements for the AWS environment and instances created on it. Requirements for AWS environment Create a base environment on AWS to provide services. The requirements for using…

Creating Direct Connect Resources

Quick Start Guides » AWS Direct Connect Quick Start Guide » AWS Direct Connect Setup Procedure » Creating Direct Connect Resources

Creating an IP Resource Create a virtual IP resource. The IP resource address must be outside the CIDR block managed by the VPC. Creating an EC2 Resource Create EC2 resources. For the IP resource requested when creating resources, specify the resource created…

AWS – Disable Source/Destination Checking

Evaluation Guides » LifeKeeper Evaluation Guide for Cloud Environments » Install LifeKeeper for Linux » Amazon Web Services » AWS – Disable Source/Destination Checking

Source/destination checking must be disabled for each AWS EC2 instance on which an EC2 Recovery Kit resource will be created. *Note: These manual steps are not required in LifeKeeper for Linux v9.6.0 and later as source/destination checking is automatically disabled…

AWS VPC Peering Connections Requirements

Quick Start Guides » Connection Between LifeKeeper Cluster and Clients Using AWS Transit Gateway Quick Start Guide » AWS VPC Peering Connections Requirements

The following requirements should be met when using this configuration. Below is a summary of requirements for the AWS environment and instances created on it. Requirements for AWS environment Create a base environment on AWS to provide services. The requirements for…

AWS – Create the SAP HANA Virtual IP

Evaluation Guides » LifeKeeper Evaluation Guide for Cloud Environments » Protecting Our Resources » How to Protect Other Resources (Databases or Applications) » Protecting SAP HANA Resources » Create SAP HANA Primary Database Virtual IP » AWS – Create the SAP HANA Virtual IP

Before creating resources to protect the virtual IP addresses associated to the SAP HANA database, the following steps must be completed on node-a and node-b: Install AWS CLI Assign Permission to Use EC2 Recovery Kit Disable PING Broadcasting AWS – Disable…

AWS – Create ASCS and ERS Virtual IPs

Evaluation Guides » LifeKeeper Evaluation Guide for Cloud Environments » Protecting Our Resources » How to Protect Other Resources (Databases or Applications) » Protecting SAP Resources » Create ASCS and ERS Virtual IPs » AWS – Create ASCS and ERS Virtual IPs

Before creating resources to protect the virtual IP addresses associated to the ASCS and ERS instances, the following steps must be completed on node-a and node-b: Install AWS CLI Assign Permission to Use EC2 Recovery Kit Disable PING Broadcasting AWS –…

AWS VPC Peering Setup Procedure

Quick Start Guides » Connection Between LifeKeeper Cluster and Clients Using AWS Transit Gateway Quick Start Guide » AWS VPC Peering Setup Procedure

This section describes the general procedure to set up the environment shown in the figure below. Preparations Create an environment that satisfies the AWS VPC Peering Connections Requirements. Install LifeKeeper on each instance and create a communication…

AWS – Configuring IMDS

Evaluation Guides » LifeKeeper Evaluation Guide for Cloud Environments » Install LifeKeeper for Linux » Amazon Web Services » AWS – Configuring IMDS

Some Recovery Kits use AWS Instance Metadata Service (IMDS) to retrieve instance metadata. You can use AWS IMDS version 1 or 2. However, if you change the configuration on AWS, you may also need to change the configuration on LifeKeeper. Configuring Amazon EC2…

Route53 Parameters List

Parameters List » Route53 Parameters List

The table below lists and explains the tunable values that are available for modifying the behavior of the Route53 Recovery Kit. These values are set by adding the /etc/default/LifeKeeper configuration file. Because none of the components of the Route53 Recovery Kit…

AWS Direct Connect Quick Start Guide

Quick Start Guides » AWS Direct Connect Quick Start Guide

Objective With the release of AWS Transit Gateway, a route table scenario for the Recovery Kit for EC2 is now available with the configuration where the on-premises environment (on-premises in the figure below) using AWS Direct Connect is connected to the HA cluster…

Recovery Kit for Route 53™ Requirements

Application Recovery Kits » Recovery Kit for Route 53™ Administration Guide » Recovery Kit for Route 53™ Requirements

Prior to installing and configuring the Recovery Kit for Route 53™, be sure your configuration meets the following requirements. AWS Command Line Interface (AWS CLI) must be installed on all EC 2 instances. Refer to Installing AWS Command Line Interface” for…

Route53™ User System Setup

Application Recovery Kits » Recovery Kit for Route 53™ Administration Guide » Recovery Kit for Route 53™ Configuration » Route53™ User System Setup

An IP resource is required for creating the Route53 resource and can be either the virtual IP resource or the actual IP resource (resource for the primary IP address that is configured for the Network Interface). When Using the Virtual IP Resource When using the…

AWS Elastic IP Scenario

Evaluation Guides » LifeKeeper Evaluation Guide for Cloud Environments » Before Starting an Evaluation of LifeKeeper for Linux » How a Client Connects to the Active Node » AWS Elastic IP Scenario

If clients are located on the internet and require public access to the active cluster node, the Elastic IP scenario should be selected. In this example the SIOS Recovery Kit for EC2 switches the Elastic IP when switching between nodes and attaches the Elastic IP to…

Protecting SAP HANA Resources

Evaluation Guides » LifeKeeper Evaluation Guide for Cloud Environments » Protecting Our Resources » How to Protect Other Resources (Databases or Applications) » Protecting SAP HANA Resources

In this section we will deploy a highly-available SAP HANA 2.0 SPS04 cluster. Our configuration will use SAP HANA System Replication to replicate data from the active database host to the standby database host and will use the LifeKeeper SAP HANA Recovery Kit to handle…

Multi-VPC Cluster Configuration Using AWS VPC Peering Connections Quick Start Guide

Quick Start Guides » Multi-VPC Cluster Configuration Using AWS VPC Peering Connections Quick Start Guide

Objective From LifeKeeper for Linux v9.2.2, a configuration in which cluster nodes are located in separate VPCs using a VPC peering connection (“multi-VPC cluster configuration”) is now supported. By using inter-region VPC peering connections,…

LifeKeeper Software Requirements for AWS Environment

Quick Start Guides » Connection Between LifeKeeper Cluster and Clients Using AWS Transit Gateway Quick Start Guide » AWS VPC Peering Connections Requirements » LifeKeeper Software Requirements for AWS Environment

Install the same version of LifeKeeper software and patches on each server in the high-availability cluster. The Application Recovery Kits (ARK) required for this configuration are shown below. For the specific LifeKeeper requirements, please refer to: LifeKeeper for…

Recovery Kit for Route 53™ Administration Guide

Application Recovery Kits » Recovery Kit for Route 53™ Administration Guide

The Recovery Kit for Route 53™ provides a mechanism for updating Amazon Route 53 DNS information corresponding to a virtual IP address and an actual IP address information of IP resources that are in dependency relation when switching to a failed primary server to a…

Connection Between LifeKeeper Cluster and Clients Using AWS Transit Gateway Quick Start Guide

Quick Start Guides » Connection Between LifeKeeper Cluster and Clients Using AWS Transit Gateway Quick Start Guide

With the release of AWS Transit Gateway and AWS Transit Gateway inter-region peering, the Recovery Kit for EC2 route table scenario is now available for configurations where a client in a VPC (VPC B in the figure below) connects to an HA cluster located in a different…

System Requirements

LifeKeeper for Linux Release Notes » System Requirements

LifeKeeper Product Requirements LifeKeeper for Linux is supported on any Linux platform that satisfies the minimum requirements included in the Linux Configuration Table. Also refer to the LifeKeeper Support Matrix for supported operating systems, applications and…

LifeKeeper Single Server Protection for Linux Installation Guide

LifeKeeper Single Server Protection » LifeKeeper Single Server Protection for Linux Installation Guide

About LifeKeeper Single Server Protection for Linux LifeKeeper Single Server Protection (SSP) allows for application monitoring in a single node configuration (i.e., no cluster requirements or restraints). Single node environments may be physical or virtual (vSphere,…

LifeKeeper Single Server Protection for Linux Technical Documentation

LifeKeeper Single Server Protection » LifeKeeper Single Server Protection for Linux Technical Documentation

About LifeKeeper Single Server Protection for Linux LifeKeeper Single Server Protection (SSP) allows for application monitoring in a single node configuration (i.e., no cluster requirements or restraints). Single node environments may be physical or virtual (vSphere,…

LifeKeeper for Linux Release Notes

LifeKeeper for Linux Release Notes

Version 9.8.1 Released March 26, 2024 Read the following topics before attempting to install or use this product! The documents contain last minute information that must be considered before, during and after installation. IMPORTANT NOTICES Overview New…

LifeKeeper Single Server Protection for Linux Introduction

LifeKeeper Single Server Protection » LifeKeeper Single Server Protection for Linux Introduction

LifeKeeper Single Server Protection (SSP) allows for application monitoring in a single node configuration (i.e., no cluster requirements or restraints). Single node environments may be physical or virtual (vSphere, KVM, Amazon EC2). LifeKeeper SSP is built on the…

AWS Route Table Scenario

Evaluation Guides » LifeKeeper Evaluation Guide for Cloud Environments » Before Starting an Evaluation of LifeKeeper for Linux » How a Client Connects to the Active Node » AWS Route Table Scenario

When an instance is created on AWS, one of the first steps is to create a Route Table. The Route Table defines the route for each Destination. In the following diagram the Instance has two routes, one for 10.20.0.0/16, which is the VPC boundary (local network). Any…

Documentation Style Used in this Guide

Evaluation Guides » LifeKeeper Evaluation Guide for Cloud Environments » Documentation Style Used in this Guide

Most of the steps documented in this tutorial describe an environment consisting of two nodes (node-a and node-b). Examples of user command execution are shown within the guide. The sections below show the styles used to indicate the different nodes or users used to…

Verify Data Before Resync (Wait to Resync)

LifeKeeper for Linux Technical Documentation » DataKeeper » Administering SIOS DataKeeper for Linux » Verify Data Before Resync (Wait to Resync)

To avoid replicating corrupt or inconsistent data to targets, LifeKeeper can wait for resources to be in-service before replicating data. Starting with 9.5.2, LifeKeeper will by default wait for parent resources of application type ‘filesys’ to be in-service…

LifeKeeper Event Forwarding via SNMP

LifeKeeper for Linux Technical Documentation » LifeKeeper » Installation and Configuration » LifeKeeper Event Forwarding via SNMP

Overview Configuration Troubleshooting *See the following documentation for kit specific traps: DataKeeper Events Table EC2 Event Table

Switching between Nodes in a Cloud Environment

Evaluation Guides » LifeKeeper Evaluation Guide for Cloud Environments » Protecting Our Resources » Switching between Nodes in a Cloud Environment

If you are operating in a cloud environment, there is an extra step to switch a virtual IP address between nodes. The following topics explain the background information and general approaches for each cloud environment: AWS Route Table Scenario AWS Elastic IP…

Incomplete Resource Priority Modification

LifeKeeper for Linux Technical Documentation » LifeKeeper » Troubleshooting » Incomplete Resource Priority Modification

A hierarchy in LifeKeeper is defined as all resources associated by parent/child relationships. For resources that have multiple parents, it is not always easy to discern from the GUI all of the root resources for a hierarchy. In order to maintain consistency in a…

Quorum Parameters List

Parameters List » Quorum Parameters List

Quorum/Witness Common Parameters The table below lists the Quorum parameters. These values are tuned by editing the /etc/default/LifeKeeper configuration file. These parameters take effect immediately after they are set. Parameter Name Meaning Setting…

Extending a Raw Device Resource Hierarchy

LifeKeeper for Linux Technical Documentation » LifeKeeper » LifeKeeper Administration Overview » Administrator Tasks » Extending Resource Hierarchies » Extending a Raw Device Resource Hierarchy

This operation can be started automatically after you have finished creating a raw device resource hierarchy, or from an existing raw device resource, as described in the section on extending resource hierarchies. Then complete the steps below, which are specific to…

Protected Resources

LifeKeeper for Linux Technical Documentation » LifeKeeper » SIOS LifeKeeper for Linux Introduction » Protected Resources

The LifeKeeper family of products includes software that allows you to provide failover protection for a range of system resources. The following figure demonstrates LifeKeeper’s flexibility and identifies the resource types you can specify for automatic…

Overview

LifeKeeper for Linux Release Notes » Overview

Introduction This release notes document is written for the person who installs, configures and/or administers the LifeKeeper for Linux product. The document contains important information not detailed in the formal LifeKeeper and DataKeeper documentation sets such…

Extending a Generic Application Resource Hierarchy

LifeKeeper for Linux Technical Documentation » LifeKeeper » LifeKeeper Administration Overview » Administrator Tasks » Extending Resource Hierarchies » Extending a Generic Application Resource Hierarchy

This operation can be started automatically after you have finished creating a generic application resource hierarchy, or from an existing generic application resource, as described in the section on extending resource hierarchies. Then complete the steps below, which…

Extending a File System Resource Hierarchy

LifeKeeper for Linux Technical Documentation » LifeKeeper » LifeKeeper Administration Overview » Administrator Tasks » Extending Resource Hierarchies » Extending a File System Resource Hierarchy

This operation can be started automatically after you have finished creating a file system resource hierarchy, or from an existing file system resource, as described in the section on extending resource hierarchies. Then complete the steps below, which are specific to…

Oracle Listener Kit Message Catalog

Search for an Error Code » Combined Message Catalog » Oracle Listener Kit Message Catalog

Use Control F to search for a specific error code in each catalog. To search for any error code, select the Search button at the top right of the screen. Code Severity Message …

Hierarchy Relationships

LifeKeeper for Linux Technical Documentation » LifeKeeper » SIOS LifeKeeper for Linux Introduction » Configuration Concepts » Resource Hierarchies » Hierarchy Relationships

LifeKeeper allows you to create relationships between resource instances. The primary relationship is a dependency, for example one resource instance depends on another resource instance for its operation . The combination of resource instances and dependencies is the…

SSHCC HA Actions

Application Recovery Kits » SAP Recovery Kit Administration Guide » SAP Administration » SSHCC HA Actions

The SAP SIOS HA Cluster Connector (SSHCC) Actions provide a list of advanced configuration operations that work in conjunction with the SAP SIOS HA Cluster Connector. The following advanced configuration operations are available: Start Instance – performs an…

Application Recovery Kits

Application Recovery Kits

LifeKeeper for Linux Application Recovery Kits (ARKs) include tools and utilities that allow LifeKeeper to manage and control a specific application. The following optional recovery kits are available with this release of LifeKeeper. !IMPORTANT: End of Support for…

Upgrading an MQ LifeKeeper Cluster

Application Recovery Kits » WebSphere MQ Recovery Kit Administration Guide » MQ Recovery Kit Requirements » Upgrading an MQ LifeKeeper Cluster

Upgrade LifeKeeper on all nodes in the cluster including the WebSphere MQ Recovery Kit following the instructions documented in the Upgrading LifeKeeper section of the LifeKeeper Installation Guide. Upgrade IBM WebSphere MQ software on each node in the cluster…