Talos multipath.

talos/talhelper/multipathd-extension-patch.yaml

@@ -0,0 +1,28 @@
+apiVersion: v1alpha1
+kind: ExtensionServiceConfig
+name: multipathd
+configFiles:
+  - content: |
+        # Your multipathd configuration content here
+        defaults {
+            user_friendly_names yes
+            find_multipaths yes
+        }
+        blacklist {                                                                                                                                 
+          devnode "^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*"                                                                                     
+          devnode "^(hd|sda|sd[a-z])[0-9]*"   # Adjust to blacklist local disks                                                                   
+          devnode "^cciss!.*"                                                                                                                     
+        }                                                                                                                                           
+        devices {                                                                                                                                   
+          device {                                                                                                                                
+              vendor                  "PURE"                                                                                                      
+              product                 "FlashArray"                                                                                                
+              path_grouping_policy    multibus                                                                                                    
+              path_selector           "queue-length 0"                                                                                            
+              path_checker            tur                                                                                                         
+              no_path_retry           0                                                                                                           
+              rr_min_io               1                                                                                                           
+              dev_loss_tmo            30                                                                                                          
+          }
+        }
+    mountPath: /etc/multipath.conf

talos/talhelper/talconfig.yaml

@@ -8,9 +8,9 @@
 #   talhelper gencommand apply --extra-flags="--insecure" | bash
 #   talhelper gencommand bootstrap | bash
 # ─────────────────────────────────────────────────────────────────────────────
-
+---
 clusterName: fastpass
-talosVersion: v1.13.2
+talosVersion: v1.13.5
 kubernetesVersion: v1.32.3
 
 # VIP floats across control plane nodes — all kubectl/talosctl traffic lands here
@@ -120,6 +120,7 @@ worker:
           - siderolabs/qemu-guest-agent
           - siderolabs/util-linux-tools
           - siderolabs/iscsi-tools
+          - siderolabs/multipath-tools
 
   patches:
     - |-
@@ -154,23 +155,51 @@ worker:
         sysctls:
           net.ipv4.conf.all.arp_announce: "2"
           net.ipv4.conf.all.arp_ignore: "1"
-
     - |-
       apiVersion: v1alpha1
       kind: ExtensionServiceConfig
-      name: multipath-tools
+      name: multipathd
       configFiles:
-        - content: |
+        - content: |-
-            # Your multipath.conf content here
+            # Pure Storage FlashArray multipath configuration
+            # Configured via ExtensionServiceConfig for multipathd system service
             defaults {
-                user_friendly_names yes
+                polling_interval 10
+                path_selector "round-robin 0"
+                path_grouping_policy group_by_prio
+                path_checker tur
+                prio alua
+                failback immediate
+                user_friendly_names no
+                find_multipaths yes
+                fast_io_fail_tmo 10
+                dev_loss_tmo 600
+                no_path_retry 0
+            }
+            
+            devices {
+                device {
+                    vendor "PURE"
+                    product "FlashArray"
+                    path_selector "round-robin 0"
+                    path_grouping_policy group_by_prio
+                    prio alua
+                    path_checker tur
+                    fast_io_fail_tmo 10
+                    user_friendly_names no
+                    no_path_retry 0
+                    hardware_handler "1 alua"
+                    dev_loss_tmo 600
+                    failback immediate
+                }
+            }
+            
+            blacklist {
+                # Exclude Portworx PXD devices from multipathing
+                devnode "^pxd[0-9]*"
+                devnode "^pxd.*"
             }
           mountPath: /etc/multipath.conf
-      environment:
-        - ARGS=-f /etc/multipath.conf
-      # Note: ExtensionServices run with host access by design, 
-      # effectively privileged for system tasks.
-
 
 # ─── Nodes ───────────────────────────────────────────────────────────────────
 nodes: