Update to 2021-01-26 17:00

roles/zfs/files/z_resume_scrubs

@@ -0,0 +1,9 @@
+#!/bin/bash -e
+
+# Resume all suspended pool scrubs
+for ZPOOL in $(zpool list -H -o name); do
+  if [ $(zpool status $ZPOOL | grep -c 'scrub paused') -ge 1 ]; then
+    echo scrub paused for pool $ZPOOL, resuming it
+    zpool scrub $ZPOOL
+  fi
+done

roles/zfs/files/z_suspend_scrubs

@@ -0,0 +1,9 @@
+#!/bin/bash -e
+
+# Suspend any running pool scrubs
+for ZPOOL in $(zpool list -H -o name); do
+  if [ $(zpool status $ZPOOL | grep -c 'scrub in progress') -ge 1 ]; then
+    echo scrub running for pool $ZPOOL, suspending it
+    zpool scrub -p $ZPOOL
+  fi
+done

roles/zfs/tasks/main.yml

@@ -30,6 +30,13 @@
   template: src=recv-sudo.j2 dest=/etc/sudoers.d/zfs_recv owner=root group=root mode=440 validate='visudo -cf %s'
   tags: zfs
 
+- name: Deploy pool scrub suspend and resume scripts
+  copy: src={{ item }} dest=/usr/local/bin/{{ item }} mode=755
+  loop:
+    - z_suspend_scrubs
+    - z_resume_scrubs
+  tags: zfs
+
 - name: Deploy ssh keys for zfs-recv
   authorized_key:
     user: zfs-recv