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iscsi-targets.rst

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iSCSI Targets

Traditionally, block-level access to a Ceph storage cluster has been limited to QEMU and librbd, which is a key enabler for adoption within OpenStack environments. Starting with the Ceph Luminous release, block-level access is expanding to offer standard iSCSI support allowing wider platform usage, and potentially opening new use cases.

  • Red Hat Enterprise Linux/CentOS 7.5 (or newer); Linux kernel v4.16 (or newer)
  • A working Ceph Storage cluster, deployed with ceph-ansible or using the command-line interface
  • iSCSI gateways nodes, which can either be colocated with OSD nodes or on dedicated nodes
  • Separate network subnets for iSCSI front-end traffic and Ceph back-end traffic

A choice of using Ansible or the command-line interface are the available deployment methods for installing and configuring the Ceph iSCSI gateway:

.. toctree::
  :maxdepth: 1

  Using Ansible <iscsi-target-ansible>
  Using the Command Line Interface <iscsi-target-cli>