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