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Terms to Know – PostgreSQL
Quick Start Guides » PostgreSQL Cluster with Shared Storage (ISCSI) » Terms to Know – PostgreSQL
The following terms are used throughout this document and, while some may be familiar to you, it may be helpful to review how SIOS defines and uses these terms. Network Communication Terms Crossover cable – A cable used to directly connect computing devices…
Terms to Know – Apache
Quick Start Guides » Apache/MySQL Cluster Using Both Shared and Replicated Storage » Terms to Know – Apache
The following terms are used throughout this document and while some may be familiar to you, it may be helpful to review how SIOS defines and uses these terms. Network Communication Terms Crossover cable – A cable used to directly connect computing devices together…
DataKeeper for Linux Terms to Know
Evaluation Guides » DataKeeper for Linux Evaluation Guide » DataKeeper for Linux Terms to Know
The following terms are used throughout this document and, while some may be familiar to you, it may be helpful to review how SIOS defines and uses these terms. Network Communication Terms Crossover cable – A cable used to directly connect computing devices…
Prepare to Install
Evaluation Guides » LifeKeeper Evaluation Guide for Cloud Environments » Protecting Our Resources » How to Protect Other Resources (Databases or Applications) » Protecting MySQL Resources » Prepare to Install
Hardware Requirements Primary and Secondary Servers Systems must meet the minimum requirements for the Linux distribution to be used during the evaluation. 512MB RAM minimum; 1GB RAM recommended. 2GB of available hard disk space recommended. Multiple…
Switch to Standby Node to Confirm Switchover is Working
Evaluation Guides » LifeKeeper Evaluation Guide for Cloud Environments » Protecting Our Resources » Switch to Standby Node to Confirm Switchover is Working
It is recommended to test each cluster resource as it is created. This helps to identify misconfigurations or other issues early in the cluster creation process. In the LifeKeeper User Interface, right-click a resource on the standby node and select “In…
How to Use Setup Scripts
LifeKeeper Single Server Protection » LifeKeeper Single Server Protection for Linux Installation Guide » How to Use Setup Scripts
To install or upgrade SSP, follow the steps below. How the Setup Scripts Works Interactive installation Configure and install LifeKeeper from the menu. If you save the configuration information at this time, it can be used for the non-interactive installation…
How to Obtain a License
LifeKeeper Single Server Protection » LifeKeeper Single Server Protection for Linux Installation Guide » About LifeKeeper Single Server Protection Licensing » How to Obtain a License
The Installation script installs the Licensing Utilities package which obtains and displays all of the available Host IDs for your server during the initial install of your LifeKeeper Single Server Protection Software. Once your licenses have been installed the utility…
How to Install a License
LifeKeeper Single Server Protection » LifeKeeper Single Server Protection for Linux Installation Guide » About LifeKeeper Single Server Protection Licensing » How to Install a License
Perform the following steps on each node of the cluster. Install your license. /opt/LifeKeeper/bin/lkkeyins Start SSP. Check the license information to make sure it is registered correctly. If you are using a permanent license, all license information should be…
Prepare to Install – PostgreSQL
Quick Start Guides » PostgreSQL Cluster with Shared Storage (ISCSI) » Prepare to Install – PostgreSQL
Hardware Requirements Primary and Secondary Servers Systems must meet the minimum requirements for the Linux distribution to be used during the evaluation. 512MB RAM minimum; 1GB RAM recommended. 2GB of available hard disk space recommended. Multiple Network…
Prepare to Install – Apache
Quick Start Guides » Apache/MySQL Cluster Using Both Shared and Replicated Storage » Prepare to Install – Apache
Hardware Requirements Primary and Secondary Servers Systems must meet the minimum requirements for the Linux distribution to be used during the evaluation. 512MB RAM minimum; 1GB RAM recommended. 2GB of available hard disk space recommended. Multiple Network…
Preparing to Run the GUI
LifeKeeper for Linux Technical Documentation » LifeKeeper » User Guide » Using LifeKeeper for Linux » GUI » Preparing to Run the GUI
Overview Configuration Starting and Stopping the GUI Server Java Security Policy Running the GUI on a LifeKeeper Server
Connecting Servers to a Cluster
LifeKeeper for Linux Technical Documentation » LifeKeeper » User Guide » Using LifeKeeper for Linux » Common Tasks » Connecting Servers to a Cluster
There are two possible ways to begin. • On the Global Toolbar, click the Connect button. • On the File Menu, click Connect. In the Server Name field of the Cluster Connect dialog, enter the name of a server within the cluster to which you want to…
Upgrading from ENSAv1 to ENSAv2
Application Recovery Kits » SAP Recovery Kit Administration Guide » SAP Administration » Upgrading from ENSAv1 to ENSAv2
In order to upgrade from Standalone Enqueue Server version 1 to Standalone Enqueue Server version 2, first ensure that your SAP kernel version supports ENSAv2 then complete the following steps: Set the following parameters in the default profile (typically located…
Upgrading from ERSv1 to ERSv2
Application Recovery Kits » SAP Recovery Kit Administration Guide » SAP Administration » Upgrading from ERSv1 to ERSv2
In order to upgrade from Enqueue Replication Server version 1 to Enqueue Replication Server version 2, first ensure that your SAP kernel version supports ERSv2 then complete the following steps: Upgrade the ASCS instance to use ENSAv2 by following the instructions…
How to Install a License
LifeKeeper for Linux Installation Guide » Setting Up Your LifeKeeper Environment » About LifeKeeper Licensing » How to Install a License
Video : How to install a license Perform the following steps on each node of the cluster. Install your license. /opt/LifeKeeper/bin/lkkeyins Start LifeKeeper. Check the license information to make sure it is registered correctly. If you are using a permanent…
How to Use Setup Scripts
LifeKeeper for Linux Installation Guide » How to Use Setup Scripts
To install or upgrade LifeKeeper, follow the steps below. How the Setup Scripts Works Interactive installation Configure and install LifeKeeper from the menu. If you save the configuration information at this time, it can be used for the non-interactive…
How to Obtain a License
LifeKeeper for Linux Installation Guide » Setting Up Your LifeKeeper Environment » About LifeKeeper Licensing » How to Obtain a License
The Installation script installs the Licensing Utilities package which obtains and displays all of the available Host IDs for your server during the initial install of your LifeKeeper Software. Once your licenses have been installed the utility will return the…
How to Remove a License
LifeKeeper for Linux Installation Guide » Setting Up Your LifeKeeper Environment » About LifeKeeper Licensing » How to Remove a License
To remove a LifeKeeper license: Open the .lic file in the /var/LifeKeeper/license directory and determine which licenses should be deleted. The licenses are named by the date/time they are installed and may also be associated with a hostid (mac address). Once…
How to Remove a License
LifeKeeper Single Server Protection » LifeKeeper Single Server Protection for Linux Installation Guide » About LifeKeeper Single Server Protection Licensing » How to Remove a License
To remove a LifeKeeper license: Open the .lic file in the /var/LifeKeeper/license directory and determine which licenses should be deleted. The licenses are named by the date/time they are installed and may also be associated with a hostid (mac address). Once…
DEP – LifeKeeper Commands Related to How Resource Applications Relate to Each Other
LifeKeeper for Linux Technical Documentation » Command Line Interface » Commands » DEP – LifeKeeper Commands Related to How Resource Applications Relate to Each Other
Running the Commands: - Start from /opt/LifeKeeper/bin - Run [one of the below commands] accompanied by [one of the “options”] (./dep_list^-P) Commands *More information on these commands is available via the man pages installed with…
How to Setup Azure Shared Storage
Quick Start Guides » Microsoft Azure Quick Start Guide » How to Setup Azure Shared Storage
Please refer to the LifeKeeper Evaluation Guide for Cloud Environments.
Prepare to Install DK for Linux
Evaluation Guides » DataKeeper for Linux Evaluation Guide » Prepare to Install DK for Linux
Hardware Requirements Primary and Secondary Servers Systems must meet the minimum requirements for the Linux distribution to be used during the evaluation. 512MB RAM minimum; 1GB RAM recommended. 2GB of available hard disk space recommended. Multiple Network…
Responding to Load Balancer Health Checks
Evaluation Guides » LifeKeeper Evaluation Guide for Cloud Environments » Protecting Our Resources » Switching between Nodes in a Cloud Environment » Responding to Load Balancer Health Checks
The LB Health Check Kit may be used as part of a LifeKeeper resource hierarchy to help route load balancer traffic to the cluster node where a particular resource is currently in-service. This is achieved by maintaining a listener on a user-specified TCP port on the…
Additional Steps to Configure SAP on LifeKeeper
Quick Start Guides » LifeKeeper for Linux in the AWS Cloud (SAP) » Additional Steps to Configure SAP on LifeKeeper
Follow the steps below to configure SAP on LifeKeeper for Linux. Step 1. Test the Deployment To connect to the LifeKeeper for Linux nodes, you need to connect to Windows jumpbox. To connect to a Windows machine, you need to connect to remote desktop terminal. In AWS…
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…
Connecting to the First Node (node-a)
Evaluation Guides » LifeKeeper Evaluation Guide for Cloud Environments » Login and Basic Configuration Tasks » Connecting to the First Node (node-a)
Once logged in to the node with “X11 forwarding” enabled, type the following command to start the LifeKeeper for Linux GUI: In the login dialog pop-up, enter the root username and password to login: After successfully logging in, you should see node-a in…
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…
Setting up Oracle to Use Raw I/O
Application Recovery Kits » Oracle Recovery Kit Administration Guide » Oracle Appendix » Setting up Oracle to Use Raw I/O
Use the following steps to create an Oracle database that uses shared Raw I/O devices instead of files. Determine the minimum number and sizes of files that you will need to create your database, including control files, tablespaces and redologs. You can create a…
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…
Switchover the Data Storage to the Other Node
Evaluation Guides » LifeKeeper Evaluation Guide for Cloud Environments » Protecting Our Resources » Common Tasks » Switchover the Data Storage to the Other Node
To switchover the disk to the other node using the LifeKeeper GUI, select the /datakeeper resource on the standby node, then select “In Service…”. Once the datarep-datakeeper resource becomes active on the other node, the Source & Target labels are…
How a Client Connects to the Active Node
Evaluation Guides » LifeKeeper Evaluation Guide for Cloud Environments » Before Starting an Evaluation of LifeKeeper for Linux » How a Client Connects to the Active Node
As discussed earlier, once a High Availability cluster has been configured, two or more nodes run simultaneously and users connect to the “active” node. When an issue occurs on the active node, a “failover” condition occurs and the “standby” node becomes…
Configure Linux Nodes to Run LifeKeeper for Linux
Evaluation Guides » LifeKeeper Evaluation Guide for Cloud Environments » Configure Linux Nodes to Run LifeKeeper for Linux
This section outlines steps to configure the Linux nodes before installing LifeKeeper for Linux. In order to connect a Linux node, it may be necessary to install the ssh client software on Windows. Connecting to a Linux Node from Windows Client Using…
How to Prepare Disks for Replication on AWS
Evaluation Guides » LifeKeeper Evaluation Guide for Cloud Environments » Protecting Our Resources » How to Create Data Replication of a File System » How to Prepare Disks for Replication on AWS
*The following steps must be performed on each node. Before setting up disk replication using DataKeeper, the disks must be prepared for replication. Please note that this tutorial assumes the availability of an empty disk for each node, both of equal size. This…
How to Prepare Disks for Replication on Azure
Evaluation Guides » LifeKeeper Evaluation Guide for Cloud Environments » Protecting Our Resources » How to Create Data Replication of a File System » How to Prepare Disks for Replication on Azure
If working in Azure, review the following document describing how to attach a second disk to an instance. https://docs.microsoft.com/en-us/azure/virtual-machines/linux/attach-disk-portal Create /datakeeper Folder *Note: After performing mkdir /datakeeper, change…
How to Protect Other Resources (Databases or Applications)
Evaluation Guides » LifeKeeper Evaluation Guide for Cloud Environments » Protecting Our Resources » How to Protect Other Resources (Databases or Applications)
This section includes the basic steps to create various resources such as databases and applications. Each resource can be created independently (unless noted otherwise). Protecting an Oracle Resource Protecting MSSQL Using Quick Service Protection Protecting a…
Taking the System to init state S WARNING
LifeKeeper for Linux Technical Documentation » LifeKeeper » Troubleshooting » Taking the System to init state S WARNING
When LifeKeeper is operational, the system must not be taken directly to init state S. Due to the operation of the Linux init system, such a transition causes all the LifeKeeper processes to be killed immediately and may precipitate a fastfail. Instead, you should…
Setting Up DB2 to use Raw I/O
Application Recovery Kits » DB2 Recovery Kit Administration Guide » Setting Up DB2 to use Raw I/O
There are several requirements for configuring RAW I/O devices for DB2 so that the DB2 instance can be protected by LifeKeeper. Requirements The Linux OS must support Raw I/O devices. For most distributions this support was included in the 2.4 kernel, but there are…
FLAG – Commands Related to Internal LifeKeeper Flags
LifeKeeper for Linux Technical Documentation » Command Line Interface » Commands » FLAG – Commands Related to Internal LifeKeeper Flags
flg_create - Set a given LifeKeeper flag on a given node Options: -d -f flg_remove - Remove a given LifeKeeper flag on a given node Options: -d -f flg_list - List all LifeKeeper flags that are set on a given node Options: -d
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…
Relocate Master Database and Log Files to Replicated Storage
Evaluation Guides » LifeKeeper Evaluation Guide for Cloud Environments » Protecting Our Resources » How to Protect Other Resources (Databases or Applications) » Protecting MSSQL Using Quick Service Protection » Relocate Master Database and Log Files to Replicated Storage
As discussed earlier, the data should be stored on the replicated file system. Therefore, we use the following locations for each component. Items Location Master DataBase Files /datakeeper/mssql/data Master Log File …
Connecting to Other Nodes (node-b and node-c)
Evaluation Guides » LifeKeeper Evaluation Guide for Cloud Environments » Login and Basic Configuration Tasks » Connecting to Other Nodes (node-b and node-c)
Select “Connect” on LifeKeeper (the first icon on the toolbar). The login dialog is displayed again. Enter node-b and the root username and password to connect to the second node. Connect to node-c the same way. Now you have three nodes displayed in…
How to Prepare Disks for Replication on Google Cloud
Evaluation Guides » LifeKeeper Evaluation Guide for Cloud Environments » Protecting Our Resources » How to Create Data Replication of a File System » How to Prepare Disks for Replication on Google Cloud
Create /datakeeper Folder *Note: After performing mkdir /datakeeper, change ownership to oracle.oinstall so that Oracle setup can actually create database files. Run command: sudo chown oracle.oinstall /datakeeper Check the Available Disks on node-a Confirm the…
TYP – LifeKeeper Commands Related to Resource Hierarchy Types
LifeKeeper for Linux Technical Documentation » Command Line Interface » Commands » TYP – LifeKeeper Commands Related to Resource Hierarchy Types
typ_create - Creates a given resource type on a given node Options: -d -a (need an app first) -r typ_remove - Removes the given resource type from the configuration database set of known resource types on the specified system (or local system if no additional…
INS – Commands Related to Individual LifeKeeper Hierarchy Instances
LifeKeeper for Linux Technical Documentation » Command Line Interface » Commands » INS – Commands Related to Individual LifeKeeper Hierarchy Instances
ins_list - Lists the current information of the given resource hierarchy instance Options: -d -f: -a / -r / -t / -i specify optional app, type, tag, and id info ins_setas - Sets the automatic switchback strategy for a given hierarchy Options: -d -t -s …
Peering Requirements for 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 Requirements » Peering Requirements for Connecting to a LifeKeeper Cluster using AWS
You need to install the same version of LifeKeeper software and patches on each server. The Application Recovery Kit (ARK) required for this configuration is shown below. For the specific LifeKeeper requirements, please refer to: LifeKeeper for Linux Technical…
Setup Procedure for Connecting to a LifeKeeper Cluster using AWS
Quick Start Guides » Multi-VPC Cluster Configuration Using AWS VPC Peering Connections Quick Start Guide » Setup Procedure for Connecting to a LifeKeeper Cluster using AWS
In this section, a general procedure to setup the environment shown as the figure below Preparations Create an environment that satisfies Requirements. Please install LifeKeeper on each instance and create a communication path between Node1 and Node2 (or Node2’).…
Creating an Internet Gateway and Assigning it to the VPC
Evaluation Guides » LifeKeeper Evaluation Guide for Cloud Environments » Configuring Network Components and Creating Instances » Creating an Instance in AWS from Scratch » Creating an Internet Gateway and Assigning it to the VPC
The next step is to create an internet gateway. An internet gateway is a VPC component that allows communication between the VPC and the internet. Refer to the AWS documentation for more information. Let’s create it and associate it with the VPC: Select…
Connecting to a Linux Node from Windows Client Using ssh
Evaluation Guides » LifeKeeper Evaluation Guide for Cloud Environments » Configure Linux Nodes to Run LifeKeeper for Linux » Connecting to a Linux Node from Windows Client Using ssh
Linux nodes can accept a login using ssh and an ssh client is therefore required. This page explains how to use PuTTY to connect to the Linux node using a public/private key pair (instead of a password). It also covers how to create a basic configuration on the Linux…
Connecting to a Linux Node with “X11 Forwarding”
Evaluation Guides » LifeKeeper Evaluation Guide for Cloud Environments » Login and Basic Configuration Tasks » Connecting to a Linux Node with “X11 Forwarding”
X Window System is used to enable bitmap based Graphical User Interface on Unix based operating systems. This is commonly referred to as “X11”. One of the interesting usages of X11 is the ability to transfer “a window” to the terminal (a machine which an…
Connecting to a LifeKeeper Cluster using AWS Settings and Operations Considerations
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
Please see the following topics for additional considerations when connecting to an AWS cluster using VPC peering and AWS Route53: Considering the Use of Quorum/Witness or STONITH when Connecting to a LifeKeeper Cluster using AWS Connecting to LifeKeeper Using AWS…
How Workloads Should be Distributed when Migrating to a Cloud Environment
Evaluation Guides » LifeKeeper Evaluation Guide for Cloud Environments » Before Starting an Evaluation of LifeKeeper for Linux » How Workloads Should be Distributed when Migrating to a Cloud Environment
Determining how Workloads (nodes) should be distributed is a common topic of discussion when migrating to the public cloud with High Availability in mind. If workloads are located within an on-premise environment, more often than not the locations of these workloads…
What is “Split Brain” and How to Avoid It
Evaluation Guides » LifeKeeper Evaluation Guide for Cloud Environments » Before Starting an Evaluation of LifeKeeper for Linux » What is “Split Brain” and How to Avoid It
As we have discussed, in a High Availability cluster environment there is one active node and one or more standby node(s) that will take over service when the active node either fails or stops responding. This sounds like a reasonable assumption until the network…
How to Confirm if the Data Storage is Available on a Node
Evaluation Guides » LifeKeeper Evaluation Guide for Cloud Environments » Protecting Our Resources » Common Tasks » How to Confirm if the Data Storage is Available on a Node
During these steps we will be switching data storage between nodes. Here are two options to check whether the data storage (per this guide, located at /datakeeper) is available in a node. View the output from the df command. Check the LifeKeeper GUI to see…
SYS – LifeKeeper Commands Related to the Systems in the LifeKeeper Cluster
LifeKeeper for Linux Technical Documentation » Command Line Interface » Commands » SYS – LifeKeeper Commands Related to the Systems in the LifeKeeper Cluster
sys_list – Lists out the systems known to a particular LifeKeeper node Options: -d sys_create – Creates knowledge of another system on LifeKeeper node Options: -s -d sys_remove – Removes knowledge of another system on a LifeKeeper…
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…
Upgrading Generic Application Kit for Load Balancer Health Checks to LB Health Check Kit
Application Recovery Kits » LB Health Check Kit Administration Guide » Upgrading Generic Application Kit for Load Balancer Health Checks to LB Health Check Kit
*The LifeKeeper LB (Load Balancer) Health Check Kit replaces the Generic Load Balancer (GenLB) Recovery Kit. The GenLB recovery kit was a collection of action scripts available for download for 9.6.1 to be used with a generic application (gen/app) resource. The GenLB…
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…
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…
Managing Log Retention in Multitarget Replication Environments
Application Recovery Kits » SAP HANA Recovery Kit Administration Guide » SAP HANA Resource Hierarchy Administration » Managing Log Retention in Multitarget Replication Environments
Log Retention Settings In accordance with the SAP HANA documentation, if a primary system is replicating to more than one secondary system, force log retention and log retention propagation should be used to reach an optimized re-sync and avoid a full datashipping…
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,…
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…
Install, Configure and Start PostgreSQL
Quick Start Guides » PostgreSQL Cluster with Shared Storage (ISCSI) » Install, Configure and Start PostgreSQL
Primary Server On your Primary server, perform the following actions: Install both the “postgresql-server” and “postgresql” rpm packages if they do not exist on your system. Apply any required dependencies as well # yum install postgresql…
SAP Recovery Kit Administration Guide
Application Recovery Kits » SAP Recovery Kit Administration Guide
The LifeKeeper for Linux SAP Recovery Kit provides a mechanism to recover SAP NetWeaver from a failed primary server onto a backup server in a LifeKeeper environment. The SAP Recovery Kit works in conjunction with other LifeKeeper Recovery Kits (the IP Recovery Kit,…
Apache Extend Hierarchy Errors
Application Recovery Kits » Apache Recovery Kit Administration Guide » Apache Web Server Troubleshooting » Apache Extend Hierarchy Errors
The error messages that might be displayed during Apache hierarchy extension are listed below, along with a suggested explanation for each. Note that these error messages appear when the GUI indicates it is “Executing the pre-extend script….” to validate the…
Logical Volume Manager Hierarchy Creation Procedures
Application Recovery Kits » Logical Volume Manager Recovery Kit Administration Guide » LifeKeeper Logical Volume Manager Hierarchy Creation and Administration » Logical Volume Manager Hierarchy Creation Procedures
To create a hierarchy in which a file system or higher-level application uses an LVM logical volume, the following high-level procedure should be followed. Determine the desired configuration of your LVM volume groups and logical volumes. In doing this, keep in mind…
LifeKeeper Alarming and Recovery
LifeKeeper for Linux Technical Documentation » LifeKeeper » User Guide » Using LifeKeeper for Linux » Advanced Tasks » LCM » LifeKeeper Alarming and Recovery
LifeKeeper error detection and notification is based on the event alarming mechanism, sendevent. The key concept of the sendevent mechanism is that independent applications can register to receive alarms for critical components. Neither the alarm initiation component…
Recovery Kit for Route 53™ Configuration
Application Recovery Kits » Recovery Kit for Route 53™ Administration Guide » Recovery Kit for Route 53™ Configuration
To configure LifeKeeper to provide the required protection capability and flexibility, you need to know the configuration requirements. You also need to understand Amazon, Amazon Virtual Private Cloud (VPC), Amazon Elastic Compute Cloud (EC2), Amazon 53 and hierarchy…
Using mysqld Groups with LifeKeeper
Application Recovery Kits » MySQL Recovery Kit Administration Guide » MySQL Recovery Kit Configuration » Using mysqld Groups with LifeKeeper
The MySQL Application Recovery Kit supports my.cnf files using the mysqld group feature managed via mysqld_multi. This MySQL feature allows multiple MySQL instances to be easily configured via a single my.cnf file (typically stored in /etc.) The kit now detects a…
Disabling Reservations
LifeKeeper for Linux Technical Documentation » LifeKeeper » Installation and Configuration » LifeKeeper I/O Fencing Introduction » Disabling Reservations
While reservations provide the highest level of data protection for shared storage, in some cases, the use of reservations is not available and must be disabled within LifeKeeper. With reservations disabled, the storage no longer acts as an arbitrator in cases where…
Java Security Policy
LifeKeeper for Linux Technical Documentation » LifeKeeper » User Guide » Using LifeKeeper for Linux » GUI » Preparing to Run the GUI » Java Security Policy
The LifeKeeper GUI uses policy-based access control. When the GUI client is loaded, it is assigned permissions based on the security policy currently in effect. The policy, which specifies permissions that are available for code from various signers/locations, is…
DataKeeper for Linux Troubleshooting
LifeKeeper for Linux Technical Documentation » DataKeeper » DataKeeper for Linux Troubleshooting
This section provides information regarding issues that may be encountered with the use of DataKeeper for Linux. Where appropriate, additional explanation of the cause of an error is provided along with necessary action to resolve the error condition. Messages…
DataKeeper Kit Message Catalog
Search for an Error Code » Combined Message Catalog » DataKeeper 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 Cause/Action …
Creating an Oracle Resource Hierarchy
Application Recovery Kits » Oracle Recovery Kit Administration Guide » LifeKeeper Configuration Tasks for Oracle » Creating an Oracle Resource Hierarchy
Note: In order to take advantage of Oracle Net remote client access, the IP address used for client connectivity must be under LifeKeeper protection as a dependent of the Oracle hierarchy. (Refer to the section Configuring the Oracle Net Listener for LifeKeeper…
LVM Recovery Kit Operations Overview
Application Recovery Kits » Logical Volume Manager Recovery Kit Administration Guide » LVM Recovery Kit Operations Overview
Create a file system resource that includes LVM creates the following resource hierarchy: [filesys] └[lvmlv] └[lvmvg] └[device] └[disk] Bringing a Resource In Service (restore) [lvmlv] Resource Execute the following command to activate…
SAP Client Reconnect
Application Recovery Kits » SAP Recovery Kit Administration Guide » SAP Administration » SAP Client Reconnect
An SAP client can either be configured to log on to a specific SAP instance or a logon group. If configured to log on through a logon group, SAP determines which running instance the client actually connects to. If the instance to which the client is connected goes…
PostgreSQL General Tips
Application Recovery Kits » PostgreSQL Recovery Kit Administration Guide » PostgreSQL Troubleshooting » PostgreSQL General Tips
The following error messages and conditions may be encountered while using the recovery kit. Error Solution Unable to protect PostgreSQL database using the same port as another LK protected PostgreSQL database. Verify the version of…
Update SAP Recovery Level
Application Recovery Kits » SAP Recovery Kit Administration Guide » SAP Administration » Update SAP Recovery Level
The Recovery Level provides instruction for the resource in the event of a failure. To find out what your current recovery level is or to change this option, go to Update Recovery Level. The recovery level can be set to FULL, LOCAL or REMOTE. Right-click your…
Mirroring with SIOS DataKeeper for Linux
LifeKeeper for Linux Technical Documentation » DataKeeper » Mirroring with SIOS DataKeeper for Linux
SIOS DataKeeper for Linux offers an alternative for customers who want to build a high availability cluster (using SIOS LifeKeeper) without shared storage or who simply want to replicate business-critical data in real-time between servers. SIOS DataKeeper uses either…
Upgrading LifeKeeper
LifeKeeper for Linux Installation Guide » Upgrading LifeKeeper
*Beginning in v9.5.0 SIOS has released the new SAP HANA Application Recovery Kit. SIOS will continue to support the SAP HANA gen/app based Recovery Kit with the 9.4.x releases until March 31, 2022. • The existing SAP HANA gen/app based Recovery Kit is not…
IP Recovery Kit (IPv4) Operations Overview
Application Recovery Kits » IP Recovery Kit Administration Guide » IP Recovery Kit (IPv4) Operations Overview
This operations overview uses the case of protecting IPv4 addresses as an example. Bringing a Resource In Service (restore) Checking protected IP addresses Check whether protected IP is a physical IP address. If the physical IP address is protected, the restore…
Modifying the Samba Configuration File
Application Recovery Kits » Samba Recovery Kit Administration Guide » Samba Hierarchy Administration » Modifying the Samba Configuration File
When changes are required to a Samba configuration file that is used in a LifeKeeper Samba instance, perform these procedures on the server that is In Service, Protected (ISP). There are three types of configuration file changes: Those that do not directly impact…
Extending Your Route53™ Resource Hierarchy
Application Recovery Kits » Recovery Kit for Route 53™ Administration Guide » Recovery Kit for Route 53™ Configuration » Extending Your Route53™ Resource 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…
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…
DataKeeper Parameters List
Parameters List » DataKeeper Parameters List
The table below lists and explains names and meanings of the DataKeeper parameters. These values are tuned by editing the /etc/default/LifeKeeper configuration file. Parameter Name Meaning Setting Value Default Value When to Apply …
LKCLI – Communication Path Creation and Deletion
LifeKeeper for Linux Technical Documentation » Command Line Interface » LKCLI Guide » LKCLI – Communication Path Creation and Deletion
What is a communication path? LifeKeeper configures clusters by connecting multiple nodes to each other. Availability can be maintained by switching to resources on another node in the cluster in the event that a node fails. To achieve this, it is necessary to…
NAS Configuration Considerations
Application Recovery Kits » NAS Recovery Kit Administration Guide » Configuring the LifeKeeper for Linux NAS Recovery Kit » NAS Configuration Considerations
The following should be considered before operating the LifeKeeper for Linux NAS Recovery Kit: Install the NAS Recovery Kit on the server(s) in your cluster configuration where you wish to mount your exported file systems and where you will extend your NAS resource…
Extending Your Oracle Hierarchy
Application Recovery Kits » Oracle Recovery Kit Administration Guide » LifeKeeper Configuration Tasks for Oracle » Extending Your Oracle Hierarchy
After you have created a hierarchy, you will want to 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. The first scenario is when you “Continue”…
Extending Your OCI Resource Hierarchy
Application Recovery Kits » Recovery Kit for Oracle Cloud Infrastructure Administration Guide » Configuration » Extending Your OCI Resource Hierarchy
Follow the steps below to extend the Recovery Kit for Oracle Cloud Infrastructure (RK for OCI) resource hierarchy. Launch the Extend Resource Hierarchy wizard referring to Extending Resource Hierarchies . Enter the following information in the Pre-Extend…
Related LifeKeeper Resources for AWS VPC Peering
Quick Start Guides » Multi-VPC Cluster Configuration Using AWS VPC Peering Connections Quick Start Guide » Related LifeKeeper Resources for AWS VPC Peering
Route53 Resource Summary When switchover occurs, it is necessary to update Amazon Route 53 DNS information in order to continue to secure the connection to the service. This feature is provided in Route53 resources. IP Resource Summary IP resource is a resource…
Unextending a Hierarchy
LifeKeeper for Linux Technical Documentation » LifeKeeper » LifeKeeper Administration Overview » Administrator Tasks » Unextending a Hierarchy
The LifeKeeper Unextend Resource Hierarchy option removes a complete hierarchy, including all of its resources, from a single server. This is different than the Delete Resource Hierarchy selection which removes a hierarchy from all servers. When using Unextend…
Deleting a Hierarchy from All Servers
LifeKeeper for Linux Technical Documentation » LifeKeeper » LifeKeeper Administration Overview » Administrator Tasks » Deleting a Hierarchy from All Servers
There are five possible ways to begin. Right-click on the icon for a resource in the hierarchy that you want to delete under the server where you want the deletion to begin. When the resource context menu appears, click Delete Resource Hierarchy. *Note:…
Extending Your IP Hierarchy
Application Recovery Kits » IP Recovery Kit Administration Guide » IP Recovery Kit Configuration » Extending Your IP Hierarchy
After you have created a hierarchy, you will want to 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. The first scenario is when you “Continue”…
Computing Resources Used in this Tutorial
Evaluation Guides » LifeKeeper Evaluation Guide for Cloud Environments » Configuring Network Components and Creating Instances » Computing Resources Used in this Tutorial
As discussed earlier, two nodes will be configured in a network to complete tasks in this tutorial. Please refer to the LifeKeeper for Linux Release Notes as well as the resource plan for the resource(s) to be protected (e.g., Oracle). Check to ensure that the…
Extending Your NFS Hierarchy
Application Recovery Kits » NFS Server Recovery Kit Administration Guide » NFS Configuration Tasks » Extending Your NFS Hierarchy
After you have created a hierarchy, you will want to extend that hierarchy to another server in the cluster. There are two possible scenarios to extend your resource instance from the template server to a target server. The first scenario is when you “Continue”…
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…
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…
tcp_remote Mode
LifeKeeper for Linux Technical Documentation » LifeKeeper » Installation and Configuration » LifeKeeper I/O Fencing Introduction » Quorum/Witness » tcp_remote Mode
In this setting Quorum is determined by checking the ability to connect to TCP/IP services on remote hosts. Connections are done via TCP/IP to a specific port on a host and are done independent of any of the defined communication paths. Being able to connect to the…
SAP HANA Hierarchy Restore Failures
Application Recovery Kits » SAP HANA Recovery Kit Administration Guide » SAP HANA Troubleshooting » SAP HANA Hierarchy Restore Failures
SAP HANA resource fails restore due to inconsistent or out-of-date data The SAP HANA Recovery kit will not allow the SAP HANA resource (database) in-service on a system that may have inconsistent or out-of-date data. To maintain data consistency the following flags…
Viewing and Editing IP Configuration Properties
Application Recovery Kits » IP Recovery Kit Administration Guide » IP Recovery Kit Configuration » Viewing and Editing IP Configuration Properties
The IP Configuration Properties page allows you to view the configuration details for a specific IP resource, as well as to modify a number of selected configuration items. To access the IP Configuration Properties page, from the LifeKeeper GUI menu select Edit, then…
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…