doc/rbd: update iSCSI gateway info

Update iSCSI gateway info in the RBD documentation.

https://tracker.ceph.com/issues/58080

Signed-off-by: Zac Dover <zac.dover@gmail.com>

diff --git a/doc/rbd/iscsi-overview.rst b/doc/rbd/iscsi-overview.rst
index 69085ddc3b841f38c664a3aab59d0a48dbe1c0de..879083c3f671b614ac66057dd33d751cb224095f 100644 (file)
--- a/doc/rbd/iscsi-overview.rst
+++ b/doc/rbd/iscsi-overview.rst
@@ -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.
-
-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 Ceph’s
-iSCSI gateway you can provision a fully integrated block-storage
-infrastructure with all the features and benefits of a conventional Storage Area
-Network (SAN).
+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 Ceph’s 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