cat: stdout: No space left on device

[icsy7867]

I was currently testing a script to email me some SMART information and I started getting this command

cat: stdout: No space left on device

I ran a df -h to check my space and I see:

Code:

Filesystem                                                  Size    Used   Avail                                                                                                                                                              Capacity  Mounted on
freenas-boot/ROOT/FreeNAS-9.3-STABLE-201602031011            27G    527M     26G                                                                                                                                                                  2%    /
devfs                                                       1.0k    1.0k      0B                                                                                                                                                                100%    /dev
tmpfs                                                        32M    6.2M     25M                                                                                                                                                                 19%    /etc
tmpfs                                                       4.0M    8.0k      4M                                                                                                                                                                  0%    /mnt
tmpfs                                                       5.3G    4.5G    844M                                                                                                                                                                 84%    /var
freenas-boot/grub                                            26G    6.8M     26G          

Can someone see something that I cannot? Thanks!

 

[Mirfster]

What are your system specs? Namely how much RAM are you running? Can we see where your script is trying to do/write to?

 

[icsy7867]

Of course!
4x 1.5TB HD in Raidz1
16GB DDR3 ECC Memory
AMD FX-8120
8GB Flash drive.

I am using a modified Smart script that I found in another post:

Code:

#!/usr/local/bin/sh
#
# Place this in /mnt/pool/scripts
# Call: sh esmart.sh /dev/ada0
# switch1 is the drive to check (passed parameter)
switch1=$1

# This will use the characters after "/dev/" for the temp file names.
# Example: /dev/ada0 becomes coverada0 or cover0ada0 or cover1ada0
# This needs to be done to keep multiple jobs from using the same files.
drv=`echo $switch1 | cut -c6-`

# Variable just so we can add a note that the drive was asleep when the
# application started but is now awake.
c=0

# Process to run our check on the drive
chkdrive()
{
smartctl -H -n standby -l error ${switch1} > /var/cover0${drv}
}

chkdrive
while [ $? != "0" ]
do
# Pause the checking of the drive to about once a minute if the drive is not running.
  sleep 59
  c=1
  chkdrive
done

if [ $c -eq 1 ]
then
echo "THE DRIVE WAS ASLEEP AND JUST WOKE UP" >> /var/cover${drv}
fi

# These lines remove the automatic Branding lines
sed -e '1d' /var/cover0${drv} > /var/cover1${drv}
sed -e '1d' /var/cover1${drv} > /var/cover0${drv}
sed -e '1d' /var/cover0${drv} > /var/cover1${drv}
sed -e '1d' /var/cover1${drv} > /var/cover0${drv}

cat /var/cover0${drv} >> /var/cover${drv}

exit 0

I think cat all the results together to have simple "PASSED" messages in the email, and then delete any files that are used.

Code:

(
echo "To: email@name.net"
echo "Subject: SMART Drive Results for ${switch1}"
echo " "
) > /var/results

sh /mnt/Storage/scripts/smart.sh /dev/ada0
sh /mnt/Storage/scripts/smart.sh /dev/ada1
sh /mnt/Storage/scripts/smart.sh /dev/ada2
sh /mnt/Storage/scripts/smart.sh /dev/ada3

cat "/dev/ada0" >> /var/results
cat /var/coverada0 >> /var/results
cat /var/coverada1 >> /var/results
cat /var/coverada2 >> /var/results
cat /var/coverada3 >> /var/results

sendmail -t < /var/results

rm /var/results
find /var/cover* -exec rm -rf {} \;

exit 0

I believe all of the dummy and trash files are cleaned up after the second script.

I got an error message once when trying to load the web gui that said /tmp was out of space. I cleared out temp and rebooted, but the issue persists. I would also like to note that it was working fine. And even if I wasnt cleaning up after myself properly it would take a long time for these few lines of text to measure of to 1MB+

I also have reboot several times.

Thanks for your time!

 

[icsy7867]

Actually poking around... it looks like CAT doesnt like this command:

cat "/dev/ada0" >> /var/results

Taking it out, everything runs just fine. It looks like I'm using cat wrong. I should be able to just echo this into the file. Sorry about that!

 

[Mirfster]

Sorry, I didn't get a chance to look it over yet. Glad you got it all figured out though.