Add service to try to remount nfs share every 10 seconds

pve2/etc/systemd/system/persistent-nfs-remount.service

@@ -0,0 +1,12 @@
+[Unit]
+Description=Persistent NFS remount for /mnt/sdb
+After=network.target
+
+[Service]
+Type=simple
+ExecStart=/bin/sh -c "while true; do mount -v /mnt/sdb && break || sleep 10; done"
+Restart=always
+RestartSec=10
+
+[Install]
+WantedBy=multi-user.target