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How to Confirm if the Data Storage is Available on a Node
Evaluation Guides » SIOS Protection Suite for Linux 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…
Switchover the Data Storage to the Other Node
Evaluation Guides » SIOS Protection Suite for Linux 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…
Switch to Standby Node to Confirm Switchover is Working
Evaluation Guides » SIOS Protection Suite for Linux 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…
Connecting to the First Node (node-a)
Evaluation Guides » SIOS Protection Suite for Linux 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 SIOS Protection Suite for Linux GUI: In the login dialog pop-up, enter the root username and password to login: After successfully logging in, you should see…
How a Client Connects to the Active Node
Evaluation Guides » SIOS Protection Suite for Linux Evaluation Guide for Cloud Environments » Before Starting an Evaluation of SIOS Protection Suite 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…
Thread is Hung Messages on Shared Storage
SIOS Protection Suite for Linux Technical Documentation » LifeKeeper » Troubleshooting » Thread is Hung Messages on Shared Storage
In situations where the device checking threads are not completing fast enough, this can cause messages to be placed in the LifeKeeper log stating that a thread is hung. This can cause resources to be moved from one server to another and in worse case, cause a server…
Start Database and Listener on node-a
Evaluation Guides » SIOS Protection Suite for Linux Evaluation Guide for Cloud Environments » Protecting Our Resources » How to Protect Other Resources (Databases or Applications) » Protecting an Oracle Resource (non-PDB) » Start Database and Listener on node-a
*The following steps should be completed on node-a. As discussed in previous steps, start the database with sqlplus and the listener with lsnrctl. Start both processes on node-a so that LifeKeeper can see these processes as the corresponding resources are…
How to Create Data Replication of a File System
Evaluation Guides » SIOS Protection Suite for Linux 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…
Upgrading the OS / Kernel on a node with LifeKeeper (OS Patching)
SIOS Protection Suite for Linux Installation Guide » Upgrading the OS / Kernel on a node with LifeKeeper (OS Patching)
!In addition to performing a backup of our product, SIOS recommends that before initiating an OS patch on a virtual machine, please perform a snapshot/backup of the entire system(s) in case an updated system needs to be restored to an earlier date/time. For additional…
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…
How to Obtain a License
SIOS Protection Suite for Linux Installation Guide » Setting Up Your SPS 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 Install a License
SIOS Protection Suite for Linux Installation Guide » Setting Up Your SPS Environment » About LifeKeeper Licensing » 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 license, all license information…
Connecting to Other Nodes (node-b and node-c)
Evaluation Guides » SIOS Protection Suite for Linux 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 AWS
Evaluation Guides » SIOS Protection Suite for Linux 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 » SIOS Protection Suite for Linux 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 Prepare Disks for Replication on GCP
Evaluation Guides » SIOS Protection Suite for Linux Evaluation Guide for Cloud Environments » Protecting Our Resources » How to Create Data Replication of a File System » How to Prepare Disks for Replication on GCP
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…
Running the GUI on a Remote System
SIOS Protection Suite for Linux Technical Documentation » LifeKeeper » User Guide » Using LifeKeeper for Linux » GUI » Preparing to Run the GUI » Running the GUI on a Remote System
You may administer LifeKeeper from a Linux, Unix or Windows system outside the LifeKeeper cluster by running the LifeKeeper GUI as a Java applet. Configuring and running the GUI in this environment is described below. Configuring the GUI on a Remote System In order…
Running the GUI on a LifeKeeper Server
SIOS Protection Suite for Linux Technical Documentation » LifeKeeper » User Guide » Using LifeKeeper for Linux » GUI » Preparing to Run the GUI » Running the GUI on a LifeKeeper Server
The simplest way to run the LifeKeeper GUI is as an application on a LifeKeeper server. By doing so you are, in effect, running the GUI client and server on the same system. After configuring the LifeKeeper server for GUI Administration, you can run the GUI as an…
Node Monitoring
SIOS Protection Suite for Linux Technical Documentation » LifeKeeper » Installation and Configuration » Standby Node Health Check » Node Monitoring
If all resources on a node are out of service, LifeKeeper considers it a standby node and calls the node monitoring script. The node monitoring script monitors CPU and memory utilization. If it determines that the node cannot be switched to successfully (due to high…
Configuration 1 – /var/mqm on Shared Storage
Application Recovery Kits » WebSphere MQ Recovery Kit Administration Guide » WebSphere MQ Configuration Considerations » MQ Configuration Requirements » MQ Supported File System Layouts » Configuration 1 – /var/mqm on Shared Storage
In this configuration, the whole /var/mqm directory is mounted on LifeKeeper supported shared storage (SCSI, SAN, NAS or replicated). Note: This only works for Active/Passive configurations. Figure 3 – File System Layout 1 – /var/mqm on Shared…
Connecting to a Linux Node with “X11 Forwarding”
Evaluation Guides » SIOS Protection Suite for Linux 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 Linux Node from Windows Client Using ssh
Evaluation Guides » SIOS Protection Suite for Linux Evaluation Guide for Cloud Environments » Configure Linux Nodes to Run SIOS Protection Suite 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…
What is “Split Brain” and How to Avoid It
Evaluation Guides » SIOS Protection Suite for Linux Evaluation Guide for Cloud Environments » Before Starting an Evaluation of SIOS Protection Suite 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…
Supported Storage
Supported Storage
Supported Storage List for LifeKeeper for Linux v9 Last updated: January 6, 2021 The table below is a list of LifeKeeper for Linux v9 supported storage and should be considered when configuring your environment. About Supported Storage Some types of storage used as…
Configure Storage
Quick Start Guides » MySQL Cluster with Data Replication (“Shared Nothing” Cluster) » Configure Storage
Before You Begin Ensure the following: You have an extra disk/partition on both servers that can be used for data replication. A target volume’s size must be equal to or larger than the size of its source disk/partition. Partition local storage for use with…
Storage Mode
SIOS Protection Suite for Linux Technical Documentation » LifeKeeper » Installation and Configuration » LifeKeeper I/O Fencing Introduction » Quorum/Witness » Storage Mode
With this mode each node writes information about itself to a shared storage device on a regular basis and periodically reads the information written by the other nodes. A cluster is considered to have quorum consensus when each node is able to access the shared…
Changing the Data Replication Path
SIOS Protection Suite for Linux Technical Documentation » DataKeeper » SIOS DataKeeper Installation and Configuration » Changing the Data Replication Path
Starting with LK 7.1, IP addresses for mirror endpoints can be modified using lk_chg_value. For example, to change a mirror endpoint from IP address 192.168.0.1 to 192.168.1.1: # lkstop (lk_chg_value cannot be run while LifeKeeper is running) # lk_chg_value…
Installation on the Backup Server
Application Recovery Kits » SAP Recovery Kit Administration Guide » SAP Installation » Installation on the Backup Server
On the backup server, repeat the Installation procedures that were performed on the primary server: Install the Core Services, ABAP and Java Central Services Install the Database Install the Application Services
Deciding on a GCP Region
Evaluation Guides » SIOS Protection Suite for Linux Evaluation Guide for Cloud Environments » Configuring Network Components and Creating Instances » Creating an Instance in GCP from Scratch » Deciding on a GCP Region
GCP has regions in many geographic locations and it may be beneficial to select a region in close geographic proximity to the workplace location. Each region has three or more Zones, but available machine types are slightly different between regions. Refer to the GCP…
How to Use Setup Scripts
SIOS Protection Suite for Linux Installation Guide » How to Use Setup Scripts
To install or upgrade SPS, 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 Use Setup Scripts
LifeKeeper Single Server Protection » LifeKeeper Single Server Protection for Linux Installation Guide » How to Use Setup Scripts
To install or upgrade LifeKeeper 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…
Active/Standby Configuration with /var/mqm on Shared Storage
Application Recovery Kits » WebSphere MQ Recovery Kit Administration Guide » WebSphere MQ Configuration Considerations » MQ Configuration Requirements » WebSphere MQ Configuration Examples » Active/Standby Configuration with /var/mqm on Shared Storage
In the Active/Standby configuration, Node1 is the primary LifeKeeper server. It protects the WebSphere MQ queue managers. All storage resides on a shared array between the cluster servers. While Node2 may be handling other applications/services, it acts only as a…
How does Data Replication between Nodes Work?
Evaluation Guides » SIOS Protection Suite for Linux Evaluation Guide for Cloud Environments » Before Starting an Evaluation of SIOS Protection Suite for Linux » How does Data Replication between Nodes Work?
In the traditional datacenter scenario, data is commonly stored on a storage area network (SAN). The cloud environment doesn’t typically support shared storage. SIOS DataKeeper presents ‘shared’ storage using replication technology to create a copy of the…
Configuring Shared Storage
SIOS Protection Suite for Linux Installation Guide » Setting Up Your SPS Environment » Configuring Shared Storage
LifeKeeper configurations may use the facilities of shared Small Computer System Interface (SCSI) host adapters and shared disk hardware to switch resources from a failed server to a designated backup server. A Fibre Channel Storage Area Network (SAN) may also be used…
No Shared Storage Found When Configuring a Hierarchy
SIOS Protection Suite for Linux Technical Documentation » LifeKeeper » Troubleshooting » No Shared Storage Found When Configuring a Hierarchy
When you are configuring resource hierarchies there are a number of situations that might cause LifeKeeper to report a “No shared storage” message: Possible Cause: Communications paths are not defined between the servers with the shared storage. When a…
Standby Node Health Check
SIOS Protection Suite for Linux Technical Documentation » LifeKeeper » Installation and Configuration » Standby Node Health Check
Overview The Standby Node Health Check feature allows you to monitor CPU and memory utilization on the standby node and monitor the health of out-of-service resources to detect errors on the standby node. This allows for issues to be resolved in advance, reducing the…
How Workloads Should be Distributed when Migrating to a Cloud Environment
Evaluation Guides » SIOS Protection Suite for Linux Evaluation Guide for Cloud Environments » Before Starting an Evaluation of SIOS Protection Suite 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…
Preparing to Run the GUI
SIOS Protection Suite 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 Java Plug-in Running the GUI on a Remote System Running the GUI on a LifeKeeper Server Browser Security Parameters for GUI Applet
Move Data to Shared Disk and LifeKeeper
Application Recovery Kits » SAP Recovery Kit Administration Guide » SAP Installation » Move Data to Shared Disk and LifeKeeper
The following steps are an example using Oracle. Note: In this example STC is being used as the DB ID as well as the SAP SID. All occurrences of “STC” or “stc” in these commands (e.g., /usr/sap/STC or user orastc) should be replaced with the actual DB ID or…
Relocate Master Database and Log Files to Replicated Storage
Evaluation Guides » SIOS Protection Suite for Linux 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 …
Additional Steps to Configure SAP on SPS
Quick Start Guides » SIOS Protection Suite for Linux in the AWS Cloud (SAP) » Additional Steps to Configure SAP on SPS
Follow the steps below to configure SAP on SPS. Step 1. Test the Deployment To connect to the SPS-L nodes, you need to connect to Windows jumpbox. To connect to a Windows machine, you need to connect to remote desktop terminal. In AWS console, select the windows…
Confirm Failover and Block Resource Failover Settings
SIOS Protection Suite for Linux Technical Documentation » LifeKeeper » Installation and Configuration » Optional Configuration Tasks » Confirm Failover and Block Resource Failover Settings
Normally, LifeKeeper will automatically switch operations to a backup node when a node failure or a resource failure occurs. However, depending on the environment, requiring manual confirmation by a system administrator may be desirable, instead of an automatic…
Connecting Servers to a Cluster
SIOS Protection Suite 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…
Storage and Adapter Requirements
SIOS Protection Suite for Linux Installation Guide » Planning Your SPS Environment » Storage and Adapter Requirements
Determine your storage and host adapter requirements using the following guidelines: Storage Devices – Based on your application’s data storage requirements, you will need to determine the type and number of data storage devices required by your configuration.…
Storage and Adapter Options
SIOS Protection Suite for Linux Installation Guide » Planning Your SPS Environment » Storage and Adapter Options
For a list of the disk array storage models currently supported by LifeKeeper in shared storage configurations, see the Supported Storage. Refer to Storage and Adapter Configuration for details about driver versions and other configuration requirements for these arrays…
Storage and Adapter Configuration
SIOS Protection Suite for Linux Technical Documentation » LifeKeeper » Installation and Configuration » Storage and Adapter Configuration
Item Description Multipath I/O and Redundant Controllers There are several multipath I/O solutions either already available or currently being developed for the Linux environment. SIOS Technology Corp. is actively working with a number of…
Using Network Attached Storage
Application Recovery Kits » MySQL Recovery Kit Administration Guide » MySQL Recovery Kit Configuration » Using Network Attached Storage
There are a couple of special considerations to take into account when configuring LifeKeeper to use an NFS file server (Network Attached Storage) as cluster storage. Use the NAS Recovery Kit The optional Network Attached Storage (NAS) recovery kit is required when…
Configure Storage – PostgreSQL
Quick Start Guides » PostgreSQL Cluster with Shared Storage (ISCSI) » Configure Storage – PostgreSQL
Before you Begin Ensure the following: If planning to use replicated storage, have an extra volume/partition on both servers that can be used for data replication. A target volume’s size must equal to or larger than the size of its source volume. If planning to…
Configure Storage – Apache
Quick Start Guides » Apache/MySQL Cluster Using Both Shared and Replicated Storage » Configure Storage – Apache
Before you Begin Ensure the following: You have an extra disk/partition on both servers that can be used for data replication. A target volume’s size must equal to or larger than the size of its source disk/partition. Shared storage is available. This can either…
Switchover failure when the SAP HANA administrative user is using a non-default login shell
Application Recovery Kits » SAP HANA Recovery Kit Administration Guide » SAP HANA Troubleshooting » Switchover failure when the SAP HANA administrative user is using a non-default login shell
Symptom: In a system where the SAP HANA administrative user (i.e., the adm user) has been configured to use a non-default login shell (such as tcsh/csh), the SAP HANA resource fails to come in-service during a switchover or failover. Cause: Some utility calls in the…
Available I/O Fencing Mechanisms (Physical Servers)
SIOS Protection Suite for Linux Technical Documentation » LifeKeeper » Installation and Configuration » LifeKeeper I/O Fencing Introduction » I/O Fencing Mechanisms » Available I/O Fencing Mechanisms (Physical Servers)
This page describes the combinations of fencing mechanisms that can be used with various storage configurations in a physical server environment. Shared Disk Configuration (Single or Multipath Configuration Using SCSI Reservations) This configuration corresponds to…
How to Protect Other Resources (Databases or Applications)
Evaluation Guides » SIOS Protection Suite for Linux 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…
Viewing the Status of a Server
SIOS Protection Suite 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…
Connecting Servers and Shared Storage
SIOS Protection Suite for Linux Installation Guide » Setting Up Your SPS Environment » Connecting Servers and Shared Storage
If you are planning to use LifeKeeper in a non-shared storage environment, then you may skip this information. If you are using LifeKeeper in a data replication (mirroring) environment, see the DataKeeper section of this documentation. If you are using LifeKeeper in a…
Standby Node Health Check Parameters List
Parameters List » Standby Node Health Check Parameters List
It is necessary to enable/disable each functionality and configure the value for the Standby Node Health Check. These settings can be customized in the /etc/default/LifeKeeper configuration file. Parameter Description Value to Set Default…
Data Replication Configuration
SIOS Protection Suite for Linux Technical Documentation » LifeKeeper » Installation and Configuration » Data Replication Configuration
Item Description SIOS DataKeeper Feature/ Distribution Matrix SIOS DataKeeper supports Linux kernel versions 2.6 and higher. SIOS DataKeeper Documentation The documentation for SIOS DataKeeper is located within the SIOS…
LCD Configuration Data
SIOS Protection Suite for Linux Technical Documentation » LifeKeeper » User Guide » Using LifeKeeper for Linux » Advanced Tasks » LCD » LCD Configuration Data
LCD stores the following related types of data: Dependency Information Resource Status Information Inter-Server Equivalency Information Dependency Information For each defined resource, LifeKeeper maintains a list of dependencies and a list of…
DEP – LifeKeeper Commands Related to How Resource Applications Relate to Each Other
SIOS Protection Suite 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…
Running the LifeKeeper GUI Through a Firewall
SIOS Protection Suite for Linux Technical Documentation » LifeKeeper » User Guide » Using LifeKeeper for Linux » Maintenance Tasks » Running the LifeKeeper GUI Through a Firewall
In some situations, a LifeKeeper cluster is placed behind a corporate firewall and administrators wish to run the LifeKeeper GUI from a remote system outside the firewall. LifeKeeper uses Remote Method Invocation (RMI) to communicate between the GUI server and client.…
Performing a Manual Switchover from the GUI
Application Recovery Kits » MySQL Recovery Kit Administration Guide » MySQL Administration » Performing a Manual Switchover from the GUI
You can test your MySQL resource hierarchy by initiating a manual switchover. This will simulate a failover of a resource instance from the primary server to the backup server. Performing a Manual Switchover from the GUI You can initiate a manual switchover from the…
Set a Password for the Root User
Evaluation Guides » SIOS Protection Suite for Linux Evaluation Guide for Cloud Environments » Configure Linux Nodes to Run SIOS Protection Suite for Linux » Set a Password for the Root User
*The following commands must be executed for each node. This tutorial uses the root user to login into the SIOS Protection Suite for Linux GUI and it requires a password to perform operations. Please define a password for root user. 1. Set a root password. …
Active/Standby Configuration with NAS Storage
Application Recovery Kits » WebSphere MQ Recovery Kit Administration Guide » WebSphere MQ Configuration Considerations » MQ Configuration Requirements » WebSphere MQ Configuration Examples » Active/Standby Configuration with NAS Storage
In the Active/Standby configuration, Node1 is the primary LifeKeeper server. It protects the WebSphere MQ queue managers. All storage resides on a NAS server with the IP 10.0.0.100. While Node2 may be handling other applications/services, it acts only as a backup for…
Active/Active Configuration with Shared Storage
Application Recovery Kits » WebSphere MQ Recovery Kit Administration Guide » WebSphere MQ Configuration Considerations » MQ Configuration Requirements » WebSphere MQ Configuration Examples » Active/Active Configuration with Shared Storage
In the Active/Active configuration below, both Node1 and Node2 are primary LifeKeeper servers for WebSphere MQ resources. Each server is also the backup server for the other. In this example, Node1 protects the shared storage array for queue manager QMGR1. Node2…
Active/Active Configuration with NAS Storage
Application Recovery Kits » WebSphere MQ Recovery Kit Administration Guide » WebSphere MQ Configuration Considerations » MQ Configuration Requirements » WebSphere MQ Configuration Examples » Active/Active Configuration with NAS Storage
In the Active/Active configuration below, both Node1 and Node2 are primary LifeKeeper servers for WebSphere MQ resources. Each server is also the backup server for the other. In this example, Node1 protects the NFS mount for queue manager QMGR1. Node2 protects the NFS…
PostgreSQL Cluster with Shared Storage (ISCSI)
Quick Start Guides » PostgreSQL Cluster with Shared Storage (ISCSI)
Objective This document is intended to aid you in installing, configuring and using the SIOS Protection Suite for Linux evaluation product, to make PostgreSQL highly available. If PostgreSQL is not already installed, please allocate some time to install it on your…
Configure Storage for DK for Linux
Evaluation Guides » DataKeeper for Linux Evaluation Guide » Configure Storage for DK for Linux
Before You Begin Ensure the following: You have an extra disk/partition on both servers that can be used for data replication. A target volume’s size must equal to or larger than the size of its source disk/partition. Partition local storage for use with SIOS…
SYS – LifeKeeper Commands Related to the Systems in the LifeKeeper Cluster
SIOS Protection Suite 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…
Taking the System to init state S WARNING
SIOS Protection Suite 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…
Available I/O Fencing Mechanisms (Virtual Machines in VMware)
SIOS Protection Suite for Linux Technical Documentation » LifeKeeper » Installation and Configuration » LifeKeeper I/O Fencing Introduction » I/O Fencing Mechanisms » Available I/O Fencing Mechanisms (Virtual Machines in VMware)
This page describes the combinations of fencing mechanisms that can be used with various storage configurations in a VMware virtual server environment. Shared Disk Configuration (Single or Multipath Configuration Using SCSI Reservations) This configuration…
Connecting to a LifeKeeper Cluster using AWS Requirements
Quick Start Guides » Connecting to a LifeKeeper Cluster using AWS VPC Peering 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…
Performing a Manual Switchover from the LifeKeeper GUI
Application Recovery Kits » PostgreSQL Recovery Kit Administration Guide » PostgreSQL Administration » Performing a Manual Switchover from the LifeKeeper GUI
You can initiate a manual switchover from the LifeKeeper GUI by selecting Edit, Resource, and In Service. For example, an in-service request executed on a backup server causes the PostgreSQL resource hierarchy to be placed in service on the backup server and taken…
Upgrading from the SAP HANA Gen/App to the SAP HANA Recovery Kit
Application Recovery Kits » SAP HANA Recovery Kit Administration Guide » Upgrading from the SAP HANA Gen/App to the SAP HANA Recovery Kit
*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. If you are using SIOS Protection Suite for Linux v9.5 or later you must…
VMDK Shared Storage Recovery Kit Administration Guide
Application Recovery Kits » VMDK Shared Storage Recovery Kit Administration Guide
VMDK Shared Storage Recovery Kit Technical Documentation LifeKeeper for Linux VMDK Shared Storage Recovery Kit (hereafter referred to as the VMDK Recovery Kit) provides a VMware virtual hard disk as shared storage. The VMDK Recovery Kit allows LifeKeeper users to…
Using Network Attached Storage with Sybase ASE
Application Recovery Kits » Sybase ASE Recovery Kit Administration Guide » Sybase ASE Recovery Kit Configuration Considerations » Using Network Attached Storage with Sybase ASE
There are a couple of special considerations to take into account when configuring SPS to use an NFS file server (Network Attached Storage) as cluster storage. Use the NAS Recovery Kit The optional Network Attached Storage (NAS) Recovery Kit is required when using an…
Measuring Rate of Change on a Linux System (Physical or Virtual)
SIOS Protection Suite for Linux Technical Documentation » DataKeeper » SIOS DataKeeper Installation and Configuration » Network Bandwidth Requirements » Measuring Rate of Change on a Linux System (Physical or Virtual)
DataKeeper for Linux can replicate data 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…
How SIOS DataKeeper Works
SIOS Protection Suite for Linux Technical Documentation » DataKeeper » How SIOS DataKeeper Works
SIOS DataKeeper creates and protects NetRAID devices. A NetRAID device is a RAID1 device that consists of a local disk or partition and a Network Block Device (NBD) as shown in the diagram below. A LifeKeeper supported file system can be mounted on a NetRAID…
Considering the Use of LifeKeeper I-O Fencing when Connecting to a LifeKeeper Cluster using AWS
Quick Start Guides » Connecting to a LifeKeeper Cluster using AWS VPC Peering Quick Start Guide » Connecting to a LifeKeeper Cluster using AWS Settings and Operations Considerations » Considering the Use of LifeKeeper I-O Fencing when Connecting to a LifeKeeper Cluster using AWS
Since the shared disk environment cannot be used in AWS environment, you cannot use SCSI reservations to prevent a split-brain. Also, IP resource may cause the split-brain as it uses the real IP resource with different IP addresses for each node. For this reason,…
Deciding on an AWS Region
Evaluation Guides » SIOS Protection Suite for Linux Evaluation Guide for Cloud Environments » Configuring Network Components and Creating Instances » Creating an Instance in AWS from Scratch » Deciding on an AWS Region
AWS has regions in many geographic locations. It may be beneficial to select a region in close geographic proximity to the workplace location. Note that not all regions have 3+ Availability Zones, so exercise caution when making a selection in order to guarantee that…
Deciding on an Azure Region
Evaluation Guides » SIOS Protection Suite for Linux Evaluation Guide for Cloud Environments » Configuring Network Components and Creating Instances » Creating an Instance in Azure from Scratch » Deciding on an Azure Region
Azure has regions in many geographic locations. It may be beneficial to select a region in close geographic proximity to your workplace location. Note that not all regions have 3 Availability Zones, so exercise caution when making a selection in order to guarantee that…
Creating an Internet Gateway and Assigning it to the VPC
Evaluation Guides » SIOS Protection Suite for Linux 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…
Peering Requirements for Connecting to a LifeKeeper Cluster using AWS
Quick Start Guides » Connecting to a LifeKeeper Cluster using AWS VPC Peering 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: SPS for Linux Technical Documentation…
Setup Procedure for Connecting to a LifeKeeper Cluster using AWS
Quick Start Guides » Connecting to a LifeKeeper Cluster using AWS VPC Peering 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’).…
Upgrading from a Previous Version of the SAP Recovery Kit
Application Recovery Kits » SAP Recovery Kit Administration Guide » SAP Installation » Upgrading from a Previous Version of the SAP Recovery Kit
To upgrade from a previous version of the SAP Recovery Kit, perform the following steps. Prior to upgrading, please review the Plan Your Configuration topic to make sure you understand all the implications of the new software. Note: If running a version prior to…
Apache/MySQL Cluster Using Both Shared and Replicated Storage
Quick Start Guides » Apache/MySQL Cluster Using Both Shared and Replicated Storage
Objective This document is intended to aid you in installing, configuring and using the SIOS Protection Suite for Linux evaluation product to make Apache and MySQL highly available. If Apache and MySQL are not already installed, please allocate some time to install…
Terms to Know
Quick Start Guides » MySQL Cluster with Data Replication (“Shared Nothing” Cluster) » 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
Quick Start Guides » MySQL Cluster with Data Replication (“Shared Nothing” Cluster) » 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…
Changing the IP for the Queue Manager
Application Recovery Kits » WebSphere MQ Recovery Kit Administration Guide » WebSphere MQ Configuration Considerations » MQ Configuration Requirements » MQ Configuration Changes After Resource Creation » Changing the IP for the Queue Manager
To change the LifeKeeper protected IP associated with the WebSphere MQ queue manager, follow these steps: Create a new LifeKeeper virtual IP in the LifeKeeper GUI. Add the new virtual IP to the WebSphere MQ hierarchy. Remove the old virtual IP from the…
Data Replication – Known Issues / Restrictions
SIOS Protection Suite for Linux Technical Documentation » LifeKeeper » Troubleshooting » Known Issues and Restrictions » Data Replication – Known Issues / Restrictions
Description DataKeeper synchronization fails with certain kernel versions. The following logs are repeatedly output to /var/log/messages: Apr 18 13:05:59 node1 nbd-client: Begin Negotiation Apr 18 13:05:59 node1 nbd-client: size = 53684994048 Apr…
Installing the Software
SIOS Protection Suite for Linux Installation Guide » Installing the Software
This document will guide you through the installation of the SIOS Protection Suite for Linux (SPS) and assumes the user has basic knowledge of the Linux operating system. Please refer to the SIOS Protection Suite for Linux product documentation for more…
Exiting the GUI
SIOS Protection Suite for Linux Technical Documentation » LifeKeeper » User Guide » Using LifeKeeper for Linux » Exiting the GUI
Select Exit from the File Menu to disconnect from all servers and close the GUI window.
Create the User_Key
Application Recovery Kits » SAP MaxDB Recovery Kit Administration Guide » Configuring SAP MaxDB with SPS » Create the User_Key
The SAP MaxDB instance requires several options for a user to successfully access a database instance. These required pieces of information must be passed in to the SAP MaxDB tool being used to access the database instance. The SAP MaxDB software includes the xuser…
Configure the Cluster
Quick Start Guides » MySQL Cluster with Data Replication (“Shared Nothing” Cluster) » Configure the Cluster
Primary Server Complete the following steps on the primary server to configure the cluster: Create TCP Communication (Comm) Path(s) Verify the Communication (Comm) Path(s) Before you begin, SIOS recommends at least two TCP communications paths between each server…
The Evaluation Process
Evaluation Guides » DataKeeper for Linux Evaluation Guide » The Evaluation Process
SIOS strongly recommends performing your evaluation of SIOS Protection Suite for Linux within a test lab environment. SIOS is not responsible and cannot provide support for evaluation software installed in a production environment. All questions during the evaluation…
Creating the VPC
Evaluation Guides » SIOS Protection Suite for Linux Evaluation Guide for Cloud Environments » Configuring Network Components and Creating Instances » Creating an Instance in AWS from Scratch » Creating the VPC
A VPC (Virtual Private Cloud) is an AWS resource that represents a local network. Different VPCs can be defined within the AWS cloud to logically separate different systems. Refer to the AWS documentation for more information. In this section we will create a VPC…
Creating the Project
Evaluation Guides » SIOS Protection Suite for Linux Evaluation Guide for Cloud Environments » Configuring Network Components and Creating Instances » Creating an Instance in GCP from Scratch » Creating the Project
A Project is the logical container in which you can create resources such as network components, computer resources, storage, etc. Refer to the GCP documentation for more information. If you have just signed up to GCP, you have a default project called “My First…
Disable the Firewall
Evaluation Guides » SIOS Protection Suite for Linux Evaluation Guide for Cloud Environments » Configure Linux Nodes to Run SIOS Protection Suite for Linux » Disable the Firewall
*The following commands must be executed for each node. In this section we will disable the firewalld service to install SIOS Protection Suite for Linux. The firewall can be left active but the ports required by SIOS Protection Suite and the application you are…
Customize LocalRecovery Parameter on Both Nodes
Evaluation Guides » SIOS Protection Suite for Linux Evaluation Guide for Cloud Environments » Protecting Our Resources » How to Protect Other Resources (Databases or Applications) » Protecting MSSQL Using Quick Service Protection » Customize LocalRecovery Parameter on Both Nodes
The Quick Service Protection Wizard completes most of the configuration. However, we still need to customize some parameters. *Execute this command on both node-a AND node-b. First, we’ll review some policy parameters using the lkpolicy tool as follows: The…
Install Postgres 12 on Linux Nodes
Evaluation Guides » SIOS Protection Suite for Linux Evaluation Guide for Cloud Environments » Protecting Our Resources » How to Protect Other Resources (Databases or Applications) » Protecting a PostgreSQL Resource » Install Postgres 12 on Linux Nodes
This section outlines the basic steps required to install Postgres 12 on Linux nodes. *Postgres must be installed on both the active and standby nodes. Instructions for installing Postgres are available at https://www.postgresql.org/download/. By selecting the…
Connecting to a LifeKeeper Cluster using AWS Settings and Operations Considerations
Quick Start Guides » Connecting to a LifeKeeper Cluster using AWS VPC Peering Quick Start Guide » Connecting to a LifeKeeper Cluster using AWS Settings and Operations Considerations
Considering the Use of LifeKeeper I-O Fencing when Connecting to a LifeKeeper Cluster using AWS