R710-Fan-Control/hddtemp
Tim Connors 7e4a2338d3 code unified with ansible-initial-server-setup/.../hddtemp
Synced with https://github.com/spacelama/ansible-initial-server-setup
-> hddtemp

purpose comment taken from
ansible-initial-server-setup/.../smart-intercept-spindown
2025-08-05 13:58:47 +10:00

55 lines
1.9 KiB
Perl
Executable file

#!/usr/bin/perl
# A replacement for the various stock versions of hddtemp that all
# seem to have big issues with different types of drives, or spin up
# drives that are in powersaving spun-down mode, etc.
# For those disks like some of my SAS drives where `smartctl
# --nocheck=standby` and `hdparm -C` actually spins up the disk,
# detect whether a disk is spun down with sdparm commands, and don't
# invoke smartctl if it is. Otherwise, some of our other disks like
# our 16TB SATA drives on Dell Perc controllers give unreliable status to `sdparm
# --command=sense`, but `smartctl --nocheck=standby` does seem to
# reliably detect their spundown state anyway, so we continue to
# supply `--nocheck=standby` to cover this case.
# Much of this stolen from /etc/munin/plugins/hddtemp_smartctl
use strict;
use warnings;
$ENV{PATH}="$ENV{PATH}:/usr/sbin:/sbin";
my $last_exit=0;
foreach my $drive (@ARGV) {
my $sense=`sdparm --command=sense $drive 2>/dev/null`;
if (!($sense =~ /Standby/)) {
my $output=`smartctl -A -i --nocheck=standby,0 $drive`;
$last_exit = $?>>8;
my $model="";
if ($output =~ /(Model Number|Device Model):\s*(.*)/) {
$model="$2: ";
}
if ($output =~ /Current Drive Temperature:\s*(\d+)/) {
print "$drive: $model$1°C\n";
} elsif ($output =~ /^(194 Temperature_(Celsius|Internal).*)/m) {
my @F = split /\s+/, $1;
print "$drive: $model$F[9]°C\n";
} elsif ($output =~ /^(231 Temperature_Celsius.*)/m) {
my @F = split ' ', $1;
print "$drive: $model$F[9]°C\n";
} elsif ($output =~ /^(190 (Airflow_Temperature_Cel|Temperature_Case).*)/m) {
my @F = split ' ', $1;
print "$drive: $model$F[9]°C\n";
} elsif ($output =~ /Temperature:\s*(\d+) Celsius/) {
print "$drive: $model$1°C\n";
} else {
print "$drive: Smart not available\n";
}
} else {
print "$drive: Sleeping. Temperature not available\n";
};
}
exit $last_exit;