-----------------------------------
-The iSCSI Initiator for VMware ESX
-----------------------------------
+------------------------------
+iSCSI Initiator for VMware ESX
+------------------------------
**Prerequisite:**
-- VMware ESX 6.0 or later
+- VMware ESX 6.5 or later using Virtual Machine compatibility 6.5 with VMFS 6.
**iSCSI Discovery and Multipath Device Setup:**
-#. From vSphere, open the Storage Adapters, on the Configuration tab. Right click
- on the iSCSI Software Adapter and select Properties.
+The following instructions will use the default vSphere web client and esxcli.
-#. In the General tab click the "Advanced" button and in the "Advanced Settings"
- set RecoveryTimeout to 25.
+#. Enable Software iSCSI
-#. If CHAP was setup on the iSCSI gateway, in the General tab click the "CHAP…"
- button. If CHAP is not being used, skip to step 4.
+ .. image:: ../images/esx_web_client_storage_main.png
+ :align: center
-#. On the CHAP Credentials windows, select “Do not use CHAP unless required by target”,
- and enter the "Name" and "Secret" values used on the initial setup for the iSCSI
- gateway, then click on the "OK" button.
+ Click on "Storage" from "Navigator", and select the "Adapters" tab.
+ From there right click "Confgure iSCSI".
-#. On the Dynamic Discovery tab, click the "Add…" button, and enter the IP address
- and port of one of the iSCSI target portals. Click on the "OK" button.
+#. Set Initiator Name
-#. Close the iSCSI Initiator Properties window. A prompt will ask to rescan the
- iSCSI software adapter. Select Yes.
+ .. image:: ../images/esx_config_iscsi_main.png
+ :align: center
-#. In the Details pane, the LUN on the iSCSI target will be displayed. Right click
- on a device and select "Manage Paths".
+ If the initiator name in the "Name & alias" section is not the same name
+ used when creating the client during gwcli setup or the initiator name used
+ in the ansible client_connections client variable, then ssh to the ESX
+ host and run the following esxcli commands to change the name.
-#. On the Manage Paths window, select “Most Recently Used (VMware)” for the policy
- path selection. Close and repeat for the other disks.
+ Get the adapter name for Software iSCSI:
+
+ ::
+
+ > esxcli iscsi adapter list
+ > Adapter Driver State UID Description
+ > ------- --------- ------ ------------- ----------------------
+ > vmhba64 iscsi_vmk online iscsi.vmhba64 iSCSI Software Adapter
+
+ In this example the software iSCSI adapter is vmhba64 and the initiator
+ name is iqn.1994-05.com.redhat:rh7-client:
+
+ ::
+
+ > esxcli iscsi adapter set -A vmhba64 -n iqn.1994-05.com.redhat:rh7-client
+
+#. Setup CHAP
+
+ .. image:: ../images/esx_chap.png
+ :align: center
+
+ Expand the CHAP authentication section, select "Do not use CHAP unless
+ required by target" and enter the CHAP credentials used in the gwcli
+ auth command or ansible client_connections credentials variable.
+
+ The Mutual CHAP authentication section should have "Do not use CHAP"
+ selected.
+
+ Warning: There is a bug in the web client where the requested CHAP
+ settings are not always used initially. On the iSCSI gateway kernel
+ logs you will see the error:
+
+ ::
+
+ > kernel: CHAP user or password not set for Initiator ACL
+ > kernel: Security negotiation failed.
+ > kernel: iSCSI Login negotiation failed.
+
+ To workaround this set the CHAP settings with the esxcli command. Here
+ authname is the username and secret is the password used in previous
+ examples:
+
+ ::
+
+ > esxcli iscsi adapter auth chap set --direction=uni --authname=myiscsiusername --secret=myiscsipassword --level=discouraged -A vmhba64
+
+#. Configure iSCSI Settings
+
+ .. image:: ../images/esx_iscsi_recov_timeout.png
+ :align: center
+
+ Expand Advanced settings and set the "RecoveryTimeout" to 25.
+
+#. Set the discovery address
+
+ .. image:: ../images/esx_config_iscsi_main.png
+ :align: center
+
+ In the Dynamic targets section, click "Add dynamic target" and under
+ Addresses add one of the gateway IP addresses added during the iSCSI
+ gateway setup stage in the gwcli section or an IP set in the ansible
+ gateway_ip_list variable. Only one address needs to be added as the gateways
+ have been setup so all the iSCSI portals are returned during discovery.
+
+ Finally, click the "Save configuration" button. In the Devices tab, you
+ should see the RBD image.
+
+ The LUN should be automatically configured and using the ALUA SATP and
+ MRU PSP. Other SATPs and PSPs must not be used. This can be verified with
+ the esxcli command:
+
+ ::
+
+ > esxcli storage nmp path list -d eui.your_devices_id
-Now the disks can be used for datastores.
projects / ceph.git / blobdiff