I just did a fresh install of unRaid v6 on my server and obviously it started to do a parity sync that I manually stopped. However, in the midst of the process, I started getting "DISK OVERHEATING" notifications (Temp>77F) for every one of my disks in the entire array. However, on the console (emhttp) I am not seeing any such overheating. I took a look at my server and all I did was installed new RAM and a new SSD to use as a SNAP-mounted disk for my VMs.

 

Has anyone seen this behavior and know what is causing it?

Here is the error log (/var/log/syslog) when the overheating notices are sent. Is this a problem with BTRFS?

 

/etc/rc.d/rc.docker start
Apr 17 23:20:12 Araliya php: Creating new image file for Docker: /mnt/disk/vm/dockers/docker.img size: 10G
Apr 17 23:20:12 Araliya php: Btrfs v3.18.2#012See http://btrfs.wiki.kernel.org for more information.#012#012Turning ON incompat feature 'extref': increased hardlink limit per file to 65536#012Turning ON incompat feature 'skinny-metadata': reduced-size metadata extent refs#012fs created label (null) on /mnt/disk/vm/dockers/docker.img#012#011nodesize 16384 leafsize 16384 sectorsize 4096 size 10.00GiB
Apr 17 23:20:12 Araliya kernel: BTRFS: device fsid 7319d692-fa11-4138-af0d-4b0ab0208dbd devid 1 transid 4 /dev/loop1
Apr 17 23:20:12 Araliya kernel: BTRFS info (device loop1): disk space caching is enabled
Apr 17 23:20:12 Araliya kernel: BTRFS: has skinny extents
Apr 17 23:20:12 Araliya kernel: BTRFS: flagging fs with big metadata feature
Apr 17 23:20:12 Araliya kernel: BTRFS: creating UUID tree
Apr 17 23:20:12 Araliya php: Resize '/var/lib/docker' of 'max'
Apr 17 23:20:12 Araliya php: starting docker ...
Apr 17 23:20:12 Araliya kernel: BTRFS: new size for /dev/loop1 is 10737418240
Apr 17 23:22:01 Araliya sSMTP[4561]: Creating SSL connection to host
Apr 17 23:22:01 Araliya sSMTP[4561]: SSL connection using ECDHE-RSA-AES128-GCM-SHA256
Apr 17 23:22:03 Araliya sSMTP[4561]: Sent mail for [email protected] (221 2.0.0 closing connection 104sm7454667qgj.43 - gsmtp) uid=0 username=root outbytes=749
Apr 17 23:22:03 Araliya sSMTP[4579]: Creating SSL connection to host
Apr 17 23:22:04 Araliya sSMTP[4579]: SSL connection using ECDHE-RSA-AES128-GCM-SHA256
Apr 17 23:22:05 Araliya sSMTP[4579]: Sent mail for [email protected] (221 2.0.0 closing connection 187sm9531193qhr.24 - gsmtp) uid=0 username=root outbytes=725
Apr 17 23:22:05 Araliya sSMTP[4594]: Creating SSL connection to host
Apr 17 23:22:05 Araliya sSMTP[4594]: SSL connection using ECDHE-RSA-AES128-GCM-SHA256
Apr 17 23:22:07 Araliya sSMTP[4594]: Sent mail for [email protected] (221 2.0.0 closing connection 187sm9531245qhr.24 - gsmtp) uid=0 username=root outbytes=725
Apr 17 23:22:07 Araliya sSMTP[4609]: Creating SSL connection to host
Apr 17 23:22:07 Araliya sSMTP[4609]: SSL connection using ECDHE-RSA-AES128-GCM-SHA256
Apr 17 23:22:09 Araliya sSMTP[4609]: Sent mail for [email protected] (221 2.0.0 closing connection p73sm5178710qha.20 - gsmtp) uid=0 username=root outbytes=734
Apr 17 23:22:09 Araliya sSMTP[4625]: Creating SSL connection to host
Apr 17 23:22:09 Araliya sSMTP[4625]: SSL connection using ECDHE-RSA-AES128-GCM-SHA256
Apr 17 23:22:11 Araliya sSMTP[4625]: Sent mail for [email protected] (221 2.0.0 closing connection y18sm9570486qgd.24 - gsmtp) uid=0 username=root outbytes=725
Apr 17 23:22:11 Araliya sSMTP[4656]: Creating SSL connection to host
Apr 17 23:22:11 Araliya sSMTP[4656]: SSL connection using ECDHE-RSA-AES128-GCM-SHA256
Apr 17 23:22:13 Araliya sSMTP[4656]: Sent mail for [email protected] (221 2.0.0 closing connection q74sm9541116qha.4 - gsmtp) uid=0 username=root outbytes=725
Apr 17 23:22:13 Araliya sSMTP[4674]: Creating SSL connection to host
Apr 17 23:22:13 Araliya sSMTP[4674]: SSL connection using ECDHE-RSA-AES128-GCM-SHA256
Apr 17 23:22:15 Araliya sSMTP[4674]: Sent mail for [email protected] (221 2.0.0 closing connection k71sm554322qhc.42 - gsmtp) uid=0 username=root outbytes=734
Apr 17 23:22:15 Araliya sSMTP[4699]: Creating SSL connection to host
Apr 17 23:22:15 Araliya sSMTP[4699]: SSL connection using ECDHE-RSA-AES128-GCM-SHA256
Apr 17 23:22:17 Araliya sSMTP[4699]: Sent mail for [email protected] (221 2.0.0 closing connection 72sm9527804qhx.32 - gsmtp) uid=0 username=root outbytes=734
Apr 17 23:22:17 Araliya sSMTP[4712]: Creating SSL connection to host
Apr 17 23:22:17 Araliya sSMTP[4712]: SSL connection using ECDHE-RSA-AES128-GCM-SHA256
Apr 17 23:22:19 Araliya sSMTP[4712]: Sent mail for [email protected] (221 2.0.0 closing connection c4sm2025276qge.32 - gsmtp) uid=0 username=root outbytes=734

 

 

 

This tends to be a problem with the temp and over temp settings, on the first runs after upgrading to v6.  Basically, it seems to be comparing Fahrenheit temps with Celsius thresholds.  Usually, doing something like going into the Display Settings and toggling the Celsius/Fahrenheit switch, then clicking the Apply button seems to fix it.

 

To help me improve the Upgrade guide, can you tell me what (if any) changes you made in the temp settings?

Hi Rob,

 

I figured it out. Thank you.

 

I went to the Settings --> Display Settings --> Temperature unit --> and changed the setting from [CELSIUS] to [FAHRENHEIT].

 

So far I have not gotten any further error messages. I think that may have done the trick, although it's a very very simple fix... Hopefully.

I'm trying to figure out why only some people see this, but most don't.  Do you recall making any changes to any temp setting, prior to this?

I just upgraded to latest beta today (6.0-beta15), and this started for me as well, I also fix it by changing the setting from [CELSIUS] to [FAHRENHEIT].

 

 

No, I didn't even touch the temperature settings.

 

Only change I did immediately after installing the new unRaid is just setting the NTP servers to the North American ones.