Update Servers/Virtualization/Proxmox/Configuring iSCSI-based Cluster Storage.md

Servers/Virtualization/Proxmox/Configuring iSCSI-based Cluster Storage.md

@@ -2,7 +2,6 @@
 This document describes the **end-to-end procedure** for creating a **thick-provisioned iSCSI-backed shared storage target** on **TrueNAS CORE**, and consuming it from a **Proxmox VE cluster** using **shared LVM**.
 
 This approach is intended to:
-- Replace NFS-backed VM storage
 - Provide SAN-style block semantics
 - Enable Proxmox-native snapshot functionality (LVM volume chains)
 - Avoid third-party plugins or middleware
@@ -62,20 +61,39 @@ zfs create -V ${ZVOL_SIZE} \
 ## Configure iSCSI Target (TrueNAS CLI)
 ```sh
 # Enable iSCSI Service
-service iscsitarget start
+service ctld start
-sysrc iscsitarget_enable=YES
+sysrc ctld_enable=YES
 
 # Create iSCSI Portal
-ctladm create -p 0.0.0.0
+ctladm create -b block -l /dev/zvol/CLUSTER-STORAGE/iscsi-storage iscsi-lun-0
 
 # Create Target
-ctladm create -t proxmox-target
+ctladm create -t iqn.2026-01.io.bunny-lab:storage
 
 # Create Extent
 ctladm create -b block -l /dev/zvol/${POOL_NAME}/${ZVOL_NAME} proxmox-extent
 
 ### Associate Target + Extent
 ctladm add -t proxmox-target -l proxmox-extent
+
+----------
+
+# Enable iSCSI Service (TrueNAS CORE)
+service ctld start
+sysrc ctld_enable=YES
+
+# Sanity Check: Confirm the backing zvol exists
+ls -l /dev/zvol/${POOL_NAME}/${ZVOL_NAME}
+
+# --- Create the CTL LUN (iSCSI "extent") ---
+# Name identity is carried via Serial Number and Device ID
+ctladm create -b block \
+  -o file=/dev/zvol/${POOL_NAME}/${ZVOL_NAME} \
+  -S ISCSI-STORAGE \
+  -d ISCSI-STORAGE
+
+# Verify the LUN is real and sized correctly (must be NON-ZERO)
+ctladm devlist -v
 ```
 
 !!! tip