From 0cff0987e5073e32006adc59b1b45da1b69173c8 Mon Sep 17 00:00:00 2001
From: Tim Connors <tconnors@rather.puzzling.org>
Date: Mon, 16 May 2022 16:46:06 +1000
Subject: [PATCH] Discard "not available" hddtemps, eg spundown disks

For spundown scsi disks, hddtemp can report "/dev/sdg: TOSHIBA
MG04SCA60EE: S.M.A.R.T. not available"
---
 fan-speed-control.pl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fan-speed-control.pl b/fan-speed-control.pl
index db073b4..8a8bfcf 100755
--- a/fan-speed-control.pl
+++ b/fan-speed-control.pl
@@ -201,7 +201,7 @@ while () {
     # could just be a simple pipe, but hddtemp has a strong posibility
     # to be stuck in a D state, and hold STDERR open despite a kill
     # -9, so instead just send it to a tempfile, and read from that tempfile
-    system("timeout -k 1 20 hddtemp /dev/sd? > $tempfilename");
+    system("timeout -k 1 20 hddtemp /dev/sd? | grep -v 'not available' > $tempfilename");
     @hddtemps=`cat < $tempfilename`;
   }
   if (!@ambient_ipmitemps) {