From ba3836ec520efc30689238e294de1d1c2026fc1b Mon Sep 17 00:00:00 2001
From: Christoph Klaffl <christoph@phreaker.eu>
Date: Fri, 6 Jul 2018 15:52:54 +0200
Subject: [PATCH] fixed monitor-health command for pools containing cache and
 log devices

---
 sanoid | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/sanoid b/sanoid
index 9cd9d33..485ee08 100755
--- a/sanoid
+++ b/sanoid
@@ -976,6 +976,11 @@ sub check_zpool() {
 			## other cases
 			my ($dev, $sta) = /^\s+(\S+)\s+(\S+)/;
 
+			if (!defined($sta)) {
+				# cache and logs are special and don't have a status
+				next;
+			}
+
 			## pool online, not degraded thanks to dead/corrupted disk
 			if ($state eq "OK" && $sta eq "UNAVAIL") {
 				$state="WARNING";
@@ -1111,7 +1116,7 @@ sub checklock {
 	# make sure lockfile contains something
 	if ( -z $lockfile) {
 	        # zero size lockfile, something is wrong
-	        die "ERROR: something is wrong! $lockfile is empty\n"; 
+	        die "ERROR: something is wrong! $lockfile is empty\n";
 	}
 
 	# lockfile exists. read pid and mutex from it. see if it's our pid.  if not, see if