Veritas InfoScale™ for Kubernetes Environments 8.0.220 - Linux

Last Published:
Product(s): InfoScale & Storage Foundation (8.0.220)
Platform: Linux
  1. Overview
    1.  
      Introduction
    2.  
      Features of InfoScale in Containerized environment
    3.  
      CSI Introduction
    4.  
      I/O fencing
    5.  
      Disaster Recovery
    6.  
      Licensing
    7.  
      Encryption
  2. System requirements
    1.  
      Introduction
    2.  
      Supported platforms
    3.  
      Disk space requirements
    4.  
      Hardware requirements
    5.  
      Number of nodes supported
    6.  
      DR support
  3. Preparing to install InfoScale on Containers
    1. Setting up the private network
      1.  
        Guidelines for setting the media speed for LLT interconnects
      2.  
        Guidelines for setting the maximum transmission unit (MTU) for LLT
    2.  
      Synchronizing time settings on cluster nodes
    3.  
      Securing your InfoScale deployment
    4.  
      Configuring kdump
  4. Installing Veritas InfoScale on OpenShift
    1.  
      Introduction
    2.  
      Prerequisites
    3.  
      Additional Prerequisites for Azure RedHat OpenShift (ARO)
    4.  
      Considerations for configuring cluster or adding nodes to an existing cluster
    5. Installing InfoScale on a system with Internet connectivity
      1. Installing from OperatorHub by using web console
        1.  
          Adding Nodes to an InfoScale cluster by using OLM
        2.  
          Undeploying and uninstalling InfoScale
      2. Installing from OperatorHub by using Command Line Interface (CLI)
        1.  
          Configuring cluster
        2.  
          Adding nodes to an existing cluster
        3.  
          Undeploying and uninstalling InfoScale by using CLI
      3. Installing by using YAML
        1.  
          Configuring cluster
        2.  
          Adding nodes to an existing cluster
        3.  
          Undeploying and uninstalling InfoScale
    6. Installing InfoScale in an air gapped system
      1.  
        Prerequisites to install by using YAML or OLM
      2.  
        Additional prerequisites to install by using yaml
      3.  
        Installing from OperatorHub by using web console
      4.  
        Installing from OperatorHub by using Command Line Interface (CLI)
      5.  
        Installing by using YAML
    7.  
      Removing and adding back nodes to an Azure RedHat OpenShift (ARO) cluster
  5. Installing Veritas InfoScale on Kubernetes
    1.  
      Introduction
    2. Prerequisites
      1.  
        Installing Node Feature Discovery (NFD) Operator and Cert-Manager on Kubernetes
    3. Tagging the InfoScale images on Kubernetes
      1.  
        Downloading side car images
    4.  
      Applying licenses
    5.  
      Tech Preview: Installing InfoScale on an Azure Kubernetes Service(AKS) cluster
    6.  
      Considerations for configuring cluster or adding nodes to an existing cluster
    7. Installing InfoScale on Kubernetes
      1.  
        Configuring cluster
      2.  
        Adding nodes to an existing cluster
    8.  
      Installing InfoScale by using the plugin
    9.  
      Undeploying and uninstalling InfoScale
  6. Configuring KMS-based Encryption on an OpenShift cluster
    1.  
      Introduction
    2.  
      Adding a custom CA certificate
    3.  
      Configuring InfoScale to enable transfer of keys
    4.  
      Enabling rekey for an encrypted Volume
  7. Configuring KMS-based Encryption on a Kubernetes cluster
    1.  
      Introduction
    2.  
      Adding a custom CA certificate
    3.  
      Configuring InfoScale to enable transfer of keys
    4.  
      Enabling rekey for an encrypted Volume
  8. InfoScale CSI deployment in Container environment
    1.  
      CSI plugin deployment
    2.  
      Raw block volume support
    3.  
      Static provisioning
    4. Dynamic provisioning
      1.  
        Reclaiming provisioned storage
    5.  
      Resizing Persistent Volumes (CSI volume expansion)
    6. Snapshot provisioning (Creating volume snapshots)
      1.  
        Dynamic provisioning of a snapshot
      2.  
        Static provisioning of an existing snapshot
      3.  
        Using a snapshot
      4.  
        Restoring a snapshot to new PVC
      5.  
        Deleting a volume snapshot
      6.  
        Creating snapshot of a raw block volume
    7. Managing InfoScale volume snapshots with Velero
      1.  
        Setting up Velero with InfoScale CSI
      2.  
        Taking the Velero backup
      3.  
        Creating a schedule for a backup
      4.  
        Restoring from the Velero backup
    8. Volume cloning
      1.  
        Creating volume clones
      2.  
        Deleting a volume clone
    9.  
      Using InfoScale with non-root containers
    10.  
      Using InfoScale in SELinux environments
    11.  
      CSI Drivers
    12.  
      Creating CSI Objects for OpenShift
  9. Installing and configuring InfoScale DR Manager on OpenShift
    1.  
      Introduction
    2.  
      Prerequisites
    3.  
      Creating Persistent Volume for metadata backup
    4.  
      External dependencies
    5. Installing InfoScale DR Manager by using OLM
      1.  
        Installing InfoScale DR Manager by using web console
      2.  
        Configuring InfoScale DR Manager by using web console
      3.  
        Installing from OperatorHub by using Command Line Interface (CLI)
    6. Installing InfoScale DR Manager by using YAML
      1.  
        Configuring Global Cluster Membership (GCM)
      2.  
        Configuring Data Replication
      3.  
        Additional requirements for replication on Cloud
      4.  
        Configuring DNS
      5.  
        Configuring Disaster Recovery Plan
  10. Installing and configuring InfoScale DR Manager on Kubernetes
    1.  
      Introduction
    2.  
      Prerequisites
    3.  
      Creating Persistent Volume for metadata backup
    4.  
      External dependencies
    5. Installing InfoScale DR Manager
      1.  
        Configuring Global Cluster Membership (GCM)
      2.  
        Configuring Data Replication
      3.  
        Additional requirements for replication on Cloud
      4.  
        Configuring DNS
      5.  
        Configuring Disaster Recovery Plan
  11. Disaster Recovery scenarios
    1.  
      Migration
    2.  
      Takeover
  12. Configuring InfoScale
    1.  
      Logging mechanism
    2.  
      Configuring Veritas Oracle Data Manager (VRTSodm)
    3.  
      Enabling user access and other pod-related logs in Container environment
  13. Administering InfoScale on Containers
    1.  
      Adding Storage to an InfoScale cluster
    2.  
      Managing licenses
  14. Upgrading InfoScale
    1.  
      Prerequisities
    2.  
      On a Kubernetes cluster
    3.  
      On an OpenShift cluster
  15. Troubleshooting
    1.  
      Collecting logs by using SORT Data Collector
    2.  
      Known Issues
    3.  
      Limitations

Setting up the private network

If you do not specify IP addresses in cr.yaml (the configuration file used for specifying details like Node names, IP addresses ), InfoScale for Containers uses the Container links. Veritas recommends setting up a private network between the systems for optimal performance. You can use either NICs or aggregated interfaces to set up private network. You can use network switches instead of hubs. Refer to the Cluster Server Administrator's Guide to review performance considerations.

The following figure shows two private networks for use with InfoScale.

Figure: Private network setups: two-node and four-node clusters

Private network setups: two-node and four-node clusters

You need to configure at least two independent networks between the cluster nodes with a network switch for each network. You can also interconnect multiple layer 2 (L2) switches for advanced failure protection. Such connections for LLT are called cross-links. The following figure shows a private network configuration with crossed links between the network switches.

Figure: Private network setup with crossed links

Private network setup with crossed links

Veritas recommends the following configuration

  • Use at least two private interconnect links. The private interconnect link is used to share cluster status across all the systems, which is important for membership arbitration and storage access.

To set up the private network

  1. Install the required network interface cards (NICs). Create aggregated interfaces if you want to use the NICs to set up private network
  2. Use crossover Ethernet cables, switches, or independent hubs for each Veritas InfoScale communication network. Note that the crossover Ethernet cables are supported only on two systems.

    Ensure that you meet the following requirements:

    • The power to the switches or hubs must come from separate sources.

    • On each system, you must use two independent network cards to provide redundancy.

    • If a network interface is part of an aggregated interface, you must not configure the network interface under LLT. However, you can configure the aggregated interface under LLT.

    • When you configure Ethernet switches for LLT private interconnect, disable the spanning tree algorithm on the ports used for the interconnect.

  3. During the process of setting up heartbeat connections, consider a case where a failure removes all communications between the systems.

    Note:

    Note that a chance for data corruption exists if the systems are still running and can access the shared storage.

  4. Test the network connections. Assign network addresses and use telnet or ping to verify communications.