plugout.net

Hello everyone.

On my LaCie 2Big NAS "fvdw-sl firmware version 18-3" that works very well, I have a fan issue that "sometimes" runs at 100% for no reason, even during periods of NAS inactivity.

My NAS is permanently powered on but its activity (backup) is only between 2am and 6am.

The temperatures displayed are correct, and I've set the NAS to automatically shut down after 15 minutes of inactivity or if the temperature is excessive, which is never the case, even during backups..

Restarting the NAS via the interface resolves the issue until next time...

Have you ever encountered this type of issue (not a problem!), and do you think it's possible to "manage" the ventilation on this model (with a plugin or restarting only after activity with CRON?)?

If you have any tips for me, for a novice, i'd love to hear them !

Thank you and have a great day.

PS: I'm posting in the "Lacie 2Big Network vs2" section, as there isn't a "2Bis NAS" section. Sorry about that!

Hi ! Again

I've read your various posts regarding fan issues on the 2Big and 5Big, but nothing works for me!

But it's a bit confusing for me...

Here are the results for my case:

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root@2Big-NAS-2To:/ # cat /etc/platform
2bignas

root@2Big-NAS-2To:/ # ls -l /usr/sbin/fan-d
lrwxrwxrwx  1 root root 16 2025-08-05 20:22 /usr/sbin/fan-d -> /bin_cab/fan5big

root@2Big-NAS-2To:/ # cat /proc/cpuinfo
processor       : 0
model name      : Feroceon 88FR131 rev 1 (v5l)
BogoMIPS        : 400.00
Features        : swp half thumb fastmult edsp
CPU implementer : 0x56
CPU architecture: 5TE
CPU variant     : 0x2
CPU part        : 0x131
CPU revision    : 1

Hardware        : LaCie 2Big NAS
Revision        : 0001
Serial          : 0000000000000000

root@2Big-NAS-2To:/ # ps ax -o command|grep fan
/usr/sbin/fan-d
grep fan
root@2Big-NAS-2To:/ # ls -al /usr/sbin/fan-d
lrwxrwxrwx  1 root root 16 2025-08-05 20:22 /usr/sbin/fan-d -> /bin_cab/fan5big
root@2Big-NAS-2To:/ # ls -l /bin_cab/fan5big
-rwxr-xr-x  1 root root 9232 2020-09-21 15:07 /bin_cab/fan5big
root@2Big-NAS-2To:/ # /usr/sbin/hdstatus-spd sda
fvdw-hdinfo-vs3 device=/dev/sda status=active temp=40 maxtemp=47 maxtemplife=54

root@2Big-NAS-2To:/ # /usr/sbin/hdstatus-spd sdb
fvdw-hdinfo-vs3 device=/dev/sdb status=standby temp=41 maxtemp=47 maxtemplife=55

root@2Big-NAS-2To:/ # cat /sys/devices/platform/mv64xxx_i2c.0/i2c-0/0-003e/hwmon/
cat: /sys/devices/platform/mv64xxx_i2c.0/i2c-0/0-003e/hwmon/: Is a directory

root@2Big-NAS-2To:/ # hwmon0/pwm1
-sh: hwmon0/pwm1: not found

root@2Big-NAS-2To:/ # ps auxf|grep fan-d
root       982  0.0  0.4   1808  1152 ?        Ss   Aug05   0:00 /usr/sbin/fan-d
root      2656  0.0  0.9   5688  2316 pts/0    R+   08:55   0:00          \_ grep fan-d

root@2Big-NAS-2To:/ # smartctl -l scttemp /dev/sda
smartctl 6.3 2014-07-26 r3976 [armv5tel-linux-4.14.133] (local build)
Copyright (C) 2002-14, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF READ SMART DATA SECTION ===
SCT Status Version:                  3
SCT Version (vendor specific):       522 (0x020a)
SCT Support Level:                   1
Device State:                        Active (0)
Current Temperature:                    40 Celsius
Power Cycle Min/Max Temperature:     40/47 Celsius
Lifetime    Min/Max Temperature:     10/54 Celsius
Under/Over Temperature Limit Count:   0/0

SCT Data Table command not supported

root@2Big-NAS-2To:/ # smartctl -l scttemp /dev/sdb
smartctl 6.3 2014-07-26 r3976 [armv5tel-linux-4.14.133] (local build)
Copyright (C) 2002-14, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF READ SMART DATA SECTION ===
SCT Status Version:                  3
SCT Version (vendor specific):       522 (0x020a)
SCT Support Level:                   1
Device State:                        Active (0)
Current Temperature:                    41 Celsius
Power Cycle Min/Max Temperature:     43/47 Celsius
Lifetime    Min/Max Temperature:     10/55 Celsius
Under/Over Temperature Limit Count:   0/0

SCT Data Table command not supported

root@2Big-NAS-2To:/ # /usr/sbin/fan-d
fan5big daemon version 10 21 sept 2020 started
fan5big: temperature limit = 47 oC
root@2Big-NAS-2To:/ # fan5big: disks installed: sda=1 sdb=1 sdc=0 sdd=0 sde=0
fan5big: an driver path is /sys/bus/i2c/devices/0-003e/hwmon/hwmon1/
fan5big: disk temperatures sda 46 sdb 46 sdc -1 sdd -1 sde -1
fan5big: temperature below limit(47) fan off, temp = 46

root@2Big-NAS-2To:/ #

But I can't find a setting or control that works!

I'm always interested in a solution if you have one!!

Thank you

Hi

First the fan daemon checks the disk temperature every 10 minutes, so fan speed may be slightly out of sync with the actual temperature of the discs.

To easily and quickly check, the current disk temperature, you can create this alias (use the related menu) by copying this line :

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htemp='for i in a b;do /usr/sbin/hdstatus-spd sd$i;done'

after opening a new shell window, you will get the output like this

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htemp
fvdw-hdinfo-vs3 device=/dev/sda status=active temp=44 maxtemp=48 maxtemplife=58

fvdw-hdinfo-vs3 device=/dev/sdb status=standby temp=43 maxtemp=49 maxtemplife=61

Now fan daemon sets the current fan status folllowing these rules :
The default threshold used by the fan is 47° (but you can set a custom value like detailed in viewtopic.php?f=27&t=3847#p39786
-When temp is 1 oC above threshold speed is set to 75,
- if 2 oC it will be 100
- if 3 degrees 150
- and 5 degrees or more 250. (Max speed value is 255)

To control manually fan speed you have to enter value in /sys/bus/i2c/devices/0-003e/hwmon/hwmon0/pwm1 and you can check what fan_speed value in /sys/bus/i2c/devices/0-003e/hwmon/hwmon0/fan1_input

So first step is to check what value is in use when you think fan speed is wrong by getting the current disk temperature and reading value in pwm1 (you have to repeat the check after 10 min to be use fan daemon set the right values after a disk temperature checking)

Thanks, Jocko, for your reply.

Sorry to sound like a loser, (I said novice :lmao ) but I don't understand where to create this alias and enter

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htemp='for i in a b;do /usr/sbin/hdstatus-spd sd$i;done'

You say "use the related menu," but I don't know what you're talking about!!
In the fvdw-sl interface or in PuTTY?

And so, by extension, I also don't know how to use

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htemp

Thanks

From the firmware web interface, you have a sub menu "Alias command" in the ssh menu.

You just have to copy my command in the text area and submit it.

The alias is available only from a New shell window (not from a current window)

Hi Jocko

Thank you for your reply.

Unfortunately, I can't seem to find a solution to this problem, the online help wasn't much help!
[ img ]

Sorry!

Hi

This warning is for the setup menu, the firmware do not allow to change SSH settings as long as you still use the well-known password for the firmware web interface ('admin') . So you have to change it first from the system setup menu

Hi Jocko!!

Everything works now !!

Sorry to have bothered you with trivialities :pound .

All the best :hail .

Ok

If you detect later the current fan daemon does not work as expected. Please to report here what is wrong