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trident-docker/prereqs-docker.html
deploy, astra trident, docker, trident for docker, nfs, iscsi, protcol, nfs protocol, iscsi protocol, configure host, host config
You have to install and configure the necessary protocol prerequisites on your host before you can deploy Astra Trident.

Prerequisites for deployment

You have to install and configure the necessary protocol prerequisites on your host before you can deploy Astra Trident.

Verify the requirements

  • Verify that your deployment meets all of the requirements.

  • Verify that you have a supported version of Docker installed. If your Docker version is out of date, install or update it.

    docker --version

  • Verify that the protocol prerequisites are installed and configured on your host:

Protocol Operating system Commands

NFS

RHEL 8+

sudo yum install -y nfs-utils

NFS

Ubuntu

sudo apt-get install -y nfs-common

iSCSI

RHEL 8+

  1. Install the following system packages:

    sudo yum install -y lsscsi iscsi-initiator-utils sg3_utils device-mapper-multipath

  2. Check that iscsi-initiator-utils version is 6.2.0.874-2.el7 or later:

    rpm -q iscsi-initiator-utils

  3. Set scanning to manual:

    sudo sed -i 's/^\(node.session.scan\).*/\1 = manual/' /etc/iscsi/iscsid.conf

  4. Enable multipathing:

    sudo mpathconf --enable --with_multipathd y --find_multipaths n

    Note
    		 Ensure etc/multipath.conf contains find_multipaths no under defaults.

  5. Ensure that iscsid and multipathd are running:

    sudo systemctl enable --now iscsid multipathd

  6. Enable and start iscsi:

    sudo systemctl enable --now iscsi

iSCSI

Ubuntu

  1. Install the following system packages:

    sudo apt-get install -y open-iscsi lsscsi sg3-utils multipath-tools scsitools

  2. Check that open-iscsi version is 2.0.874-5ubuntu2.10 or later (for bionic) or 2.0.874-7.1ubuntu6.1 or later (for focal):

    dpkg -l open-iscsi

  3. Set scanning to manual:

    sudo sed -i 's/^\(node.session.scan\).*/\1 = manual/' /etc/iscsi/iscsid.conf

  4. Enable multipathing:

    sudo tee /etc/multipath.conf <←'EOF'
    defaults {
    user_friendly_names yes
    find_multipaths no
    }
    EOF
    sudo systemctl enable --now multipath-tools.service
    sudo service multipath-tools restart

    Note
    		 Ensure etc/multipath.conf contains find_multipaths no under defaults.

  5. Ensure that open-iscsi and multipath-tools are enabled and running:

    sudo systemctl status multipath-tools
    sudo systemctl enable --now open-iscsi.service
    sudo systemctl status open-iscsi