Configuring time synchronization using Chrony. For information on configuring chrony for time synchronization for all Gluster nodes, see Using chrony. After configuring chrony, verify that time is synchronized for all Gluster nodes by using the following command from the primary node to all other nodes:. Configuring time synchronization using Network Time Protocol. Set the ntpd daemon to automatically synchronize the time during the boot process as follows:. Add or edit the list of public NTP servers in the ntp.
The Red Hat Enterprise Linux 6 version of this file already contains the required information. Edit the contents of this file if customization is required.
Optionally, increase the initial synchronization speed by appending the iburst directive to each line:. After the list of servers is complete, set the required permissions in the same file. Ensure that only localhost has unrestricted access:. Save all changes, exit the editor, and restart the NTP daemon: service ntpd restart.
Ensure that the ntpd daemon starts at boot time:. Use the ntpdate command for a one-time synchronization of NTP. Hardware Compatibility. Hardware specifications change almost daily, it is recommended that all systems be checked for compatibility. You must ensure that your environments meets the hardware compatibility outlined in this article. Hardware specifications change rapidly and full compatibility is not guaranteed.
Hardware compatibility is a particularly important concern if you have an older or custom-built system. Port Information.
Red Hat Gluster Storage Server uses the listed ports. Ensure that firewall settings do not prevent access to these ports. For Red Hat Enterprise Linux 6, use the iptables command to open a port:. For Red Hat Enterprise Linux 7, if default ports are in use, it is usually simpler to add a service rather than open a port:. However, if the default ports are already in use, you can open a specific port with the following command:.
The total number of ports required depends on the number of bricks on the node. One port is required for each brick on the machine. In order to upgrade or use Red Hat Gluster Storage in conjunction with other software, you may need to know the support details of each version. This table provides a summary:. The repository that you install packages from may affect the package version installed which in turn may affect the compatibility of your systems.
Feature Compatibility Support. Red Hat Gluster Storage supports a number of features. Most features are supported with other features, but there are some exceptions. This section clearly identifies which features are supported and compatible with other features to help you in planning your Red Hat Gluster Storage deployment.
See Understanding VDO for more information. Features in the following table are supported from the specified version and later. Chapter 2. Installing Red Hat Gluster Storage.
Technology preview packages will also be installed with this installation of Red Hat Gluster Storage Server. For more information about the list of technology preview features, see chapter Technology Previews in the Red Hat Gluster Storage 3.
If you do not remove this file, all cloned machines will have the same UUID. The file will be automatically recreated with a UUID on initial start-up of the glusterd daemon on the cloned virtual machines. Obtaining Red Hat Gluster Storage. This chapter details the steps to obtain the Red Hat Gluster Storage software.
Use a valid Red Hat Subscription to download the full installation files, obtain a free evaluation installation, or follow the links in this page to purchase a new Red Hat Subscription. Installing from an ISO Image. Installing Red Hat Gluster Storage 3. The installation process launches automatically when you boot the system using the ISO image file.
Press Enter to begin the installation process. For some hypervisors, while installing Red Hat Gluster Storage on a virtual machine, you must select the Install System with basic video driver option.
The Welcome screen displays. The Language Selection screen displays. Select the preferred language for the installation and the system default and click Next.
The Keyboard Configuration screen displays. Select the preferred keyboard layout for the installation and the system default and click Next. The Storage Devices screen displays. Select Basic Storage Devices. The Hostname configuration screen displays. Enter the hostname for the computer.
You can also configure network interfaces if required. Click Next. The Time Zone Configuration screen displays. Set your time zone by selecting the city closest to your computer's physical location.
The Set Root Password screen displays. The root account's credentials will be used to install packages, upgrade RPMs, and perform most system maintenance. As such, setting up a root account and password is one of the most important steps in the installation process. The root user also known as the superuser has complete access to the entire system. For this reason, you should only log in as the root user to perform system maintenance or administration.
The Set Root Password screen prompts you to set a root password for your system. You cannot proceed to the next stage of the installation process without entering a root password. Enter the root password into the Root Password field. The characters you enter will be masked for security reasons. Then, type the same password into the Confirm field to ensure the password is set correctly.
After you set the root password, click Next. The Partitioning Type screen displays. Partitioning allows you to divide your hard drive into isolated sections that each behave as their own hard drive.
Partitioning is particularly useful if you run multiple operating systems. In this screen you can choose to create the default partition layout in one of four different ways, or choose to partition storage devices manually to create a custom layout. If you are not comfortable partitioning your system, choose one of the first four options. These options allow you to perform an automated installation without having to partition your storage devices yourself.
Depending on the option you choose, you can still control what data, if any, is removed from the system. Your options are:. Choose the preferred partitioning method by clicking the radio button to the left of its description in the dialog box. Click Next once you have made your selection. The Boot Loader screen displays with the default settings. The Minimal Selection screen displays. Click Next to retain the default selections and proceed with the installation.
To customize your package set further, select the Customize now option and click Next. This will take you to the Customizing the Software Selection screen. For Red Hat Gluster Storage 3. If you require samba active directory integration with gluster, ensure you select RH-Gluster-AD-Integration component. The Package Installation screen displays. Red Hat Gluster Storage Server reports the progress on the screen as it installs the selected packages in the system.
On successful completion, the Installation Complete screen displays. Ensure that you remove any installation media if it is not automatically ejected upon reboot.
To install Red Hat Gluster Storage 3. This selection will also become the default for the installed system, unless changed later. One language is pre-selected by default on top of the list. If network access is configured at this point for example, if you booted from a network server instead of local media , the pre-selected language will be determined based on automatic location detection using the GeoIP module.
The Installation Summary screen is the central location for setting up an installation. Instead of directing you through consecutive screens, the Red Hat Gluster Storage 3. Select a menu item to configure a section of the installation. When you have completed configuring a section, or if you would like to complete that section later, click the Done button located in the upper left corner of the screen.
Only sections marked with a warning symbol are mandatory. A note at the bottom of the screen warns you that these sections must be completed before the installation can begin. The remaining sections are optional. Beneath each section's title, the current configuration is summarized. Using this you can determine whether you need to visit the section to configure it further.
The following list provides a brief information of each of the menu item on the Installation Summary screen:. Setting up NTP is mandatory for Gluster installation. Toggle the Network Time switch to ON. By default, the Network Time switch is enabled if you are connected to the network. Click the configuration icon to add new NTP servers or select existing servers. Once you have made your addition or selection, click Done to return to the Installation Summary screen.
NTP servers might be unavailable at the time of installation. In such a case, enabling them will not set the time automatically. When the servers are available, the date and time will be updated.
When the Red Hat Gluster Storage 3. However, the installation does not prompt you to configure network interfaces on some common installation paths - for example, when you install Red Hat Gluster Storage 3. When you install Red Hat Gluster Storage 3.
You will also need to set the connection to connect automatically after boot when editing the configuration. After making the necessary configurations, click Begin Installation on the Installation Summary screen. Up to this point in the installation process, no lasting changes have been made on your computer. When you click Begin Installation, the installation program will allocate space on your hard drive and start to transfer Red Hat Gluster Storage into this space.
Depending on the partitioning option that you chose, this process might include erasing data that already exists on your computer. To revise any of the choices that you made up to this point, return to the relevant section of the Installation Summary screen. To cancel installation completely, click Quit or switch off your computer. If you have finished customizing the installation and are certain that you want to proceed, click Begin Installation.
After you click Begin Installation , allow the installation process to complete. If the process is interrupted, for example, by you switching off or resetting the computer, or by a power outage, you will probably not be able to use your computer until you restart and complete the Red Hat Gluster Storage installation process. Once you click Begin Installation , the progress screen appears.
Red Hat Gluster Storage reports the installation progress on the screen as it writes the selected packages to your system. Following is a brief description of the options on this screen:. Root Password. After the installation is completed, click Reboot to reboot your system and begin using Red Hat Gluster Storage.
This is available in Red Hat Enterprise Linux 6. Run the following command and enter your Red Hat Network user name and password to register the system with the Red Hat Network:.
Run the following commands to find entitlement pools containing the repositories required to install Red Hat Gluster Storage:. Run the following command to attach the entitlements:. Run the following commands to enable the repositories required to install Red Hat Gluster Storage:. Run the following commands to enable the repositories required to install Red Hat Gluster Storage.
Red Hat Gluster Storage requires the kernel Verify the installed and running kernel versions by running the following command:.
If any kernel packages are updated, reboot the system with the following command. If you require Samba Active Directory integration with gluster, execute the following command:. Installing from a PXE Server. To boot your computer using a PXE server, you need a properly configured server and a network interface in your computer that supports PXE. Configure the computer to boot from the network interface.
Ensure that the network cable is attached. The link indicator light on the network socket should be lit, even if the computer is not switched on. A menu screen appears. Press the number key that corresponds to the preferred option. If your computer does not boot from the netboot server, ensure that the BIOS is configured so that the computer boots first from the correct network interface. See your hardware documentation for more information. Installing from Red Hat Satellite Server. Ensure that the firewall settings are configured so that the required ports are open.
For a list of port numbers, see Section 1. Using Red Hat Satellite Server 6. For detailed steps for Satellite, see Red Hat Satellite documentation. Create a new manifest file and upload the manifest in the Satellite 6 server. Search for the required Red Hat Gluster Storage repositories and enable them. Using Red Hat Satellite Server 5.
In the Child Channels tab of the Activation Keys screen, select the following child channels:. In the Packages tab of the Activation Keys screen, enter the following package name:. When creating a kickstart profile, the following Base Channel and Tree must be selected. Associate the previously created activation key with the kickstart profile. By default, the kickstart profile chooses md5 as the hash algorithm for user passwords.
You must change this algorithm to sha by providing the following settings in the auth field of the Kickstart Details , Advanced Options page of the kickstart profile:.
After creating the kickstart profile, you must change the root password in the Kickstart Details , Advanced Options page of the kickstart profile and add a root password based on the prepared sha hash algorithm.
After you have successfully installed Red Hat Gluster Storage, you must subscribe to the required channels:. For more information regarding layered installation, see Section 2. Register the System with Subscription Manager Run the following command and enter your Red Hat Network user name and password to register the system with Subscription Manager:. Run the following command to register the system to the Red Hat Satellite Server:. Run the following command to subscribe the system to the required Red Hat Gluster Storage server channel:.
Managing the glusterd Service. After installing Red Hat Gluster Storage, the glusterd service automatically starts on all the servers in the trusted storage pool. The service can be manually started and stopped by using the glusterd service commands. For more information on creating trusted storage pools, see the Red Hat Gluster Storage 3. Use Red Hat Gluster Storage to dynamically change the configuration of glusterFS volumes without restarting servers or remounting volumes on clients.
The glusterFS daemon glusterd also offers elastic volume management. Use the gluster CLI commands to decouple logical storage volumes from physical hardware. This allows the user to grow, shrink, and migrate storage volumes without any application downtime. As storage is added to the cluster, the volumes are distributed across the cluster. This distribution ensures that the cluster is always available despite changes to the underlying hardware. Manually Starting and Stopping glusterd.
Use the following instructions to manually start and stop the glusterd service. Manually start glusterd as follows:. Installing Ansible to Support Gdeploy. You must install Ansible 2. Execute the following command to enable the repository required to install Ansible:. Jump to section. Storage management that scales Red Hat Gluster Storage stores data without the need for a metadata server, eliminating any single point of failure. Fast, simple, and no vendor lock-in Deploy a multi-tenant storage system in a few minutes, without being tied to rigid innovation cycles or specific hardware configurations.
Optimized for containers Red Hat Gluster Storage is the basis for persistent container based storage that's scalable and highly integrated with Openshift. Deploy in the hybrid cloud Run Red Hat Gluster Storage where it makes the most sense: bare metal, virtualized, containerized, or in the cloud. Large-scale media The transition to digital workflows and content has increased demand for digital storage. Virtualization Build cost-effective, agile, and optimal virtual server and storage infrastructures across heterogeneous hardware platforms.
Learn more about features. Container Storage for Dummies. Download the e-book. Read more. See all related resources. Rely on Red Hat. Browse curriculum. Consulting Connect with our strategic advisors to find out how best to scale Red Hat Gluster Storage to handle high-capacity and high-performance tasks across bare metal, virtual, container, and cloud deployments. Learn more. Partner program Need more?
Chapter 3. As a minimal image that requires access to the BaseOS and AppStream repositories to install software packages. Table 3. Additional resources Preparing an installation source Installing, managing, and removing user-space components.
The DVD ISO image file contains all repositories and software packages and does not require any additional configuration. See Preparing an installation source for more information. Prerequisites You have an active Red Hat subscription.
Optional: Select the Packages tab to view the packages contained in the selected variant. Prerequisites Install curl and jq package: If your distribution uses the yum package manager: yum install curl yum install jq If your distribution uses the dnf package manager: dnf install curl dnf install jq If your distribution uses the apt package manager: apt update apt install curl apt install jq.
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