Merge pull request #49045 from zdover23/wip-doc-2022-11-25-rbd-iscsi-initiator

doc/rbd: update iSCSI gateway info

Reviewed-by: Cole Mitchell <cole.mitchell@gmail.com>
Reviewed-by: Anthony D'Atri <anthony.datri@gmail.com>
Reviewed-by: Ilya Dryomov <idryomov@redhat.com>
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zdover23 2022-11-27 06:59:55 +10:00 committed by GitHub
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@ -4,19 +4,18 @@
Ceph iSCSI Gateway
==================
The iSCSI Gateway presents
a Highly Available (HA) iSCSI target that exports RADOS Block Device (RBD) images
as SCSI disks. The iSCSI protocol allows clients (initiators) to send SCSI commands
to storage devices (targets) over a TCP/IP network, enabling clients without
native Ceph client support to access Ceph block storage. These include
Microsoft Windows and even BIOS.
The iSCSI Gateway presents a Highly Available (HA) iSCSI target that exports
RADOS Block Device (RBD) images as SCSI disks. The iSCSI protocol allows
clients (initiators) to send SCSI commands to storage devices (targets) over a
TCP/IP network, enabling clients without native Ceph client support to access
Ceph block storage.
Each iSCSI gateway exploits the Linux IO target kernel subsystem (LIO) to provide
iSCSI protocol support. LIO utilizes userspace passthrough (TCMU) to interact
with Ceph's librbd library and expose RBD images to iSCSI clients. With Cephs
iSCSI gateway you can provision a fully integrated block-storage
infrastructure with all the features and benefits of a conventional Storage Area
Network (SAN).
Each iSCSI gateway exploits the Linux IO target kernel subsystem (LIO) to
provide iSCSI protocol support. LIO utilizes userspace passthrough (TCMU) to
interact with Ceph's librbd library and expose RBD images to iSCSI clients.
With Cephs iSCSI gateway you can provision a fully integrated block-storage
infrastructure with all the features and benefits of a conventional Storage
Area Network (SAN).
.. ditaa::
Cluster Network (optional)
@ -43,6 +42,11 @@ Network (SAN).
| +-----------+ |
+-------------------+
.. warning::
The iSCSI gateway is in maintenance as of November 2022. This means that
it is no longer in active development and will not be updated to add
new features.
.. toctree::
:maxdepth: 1