freenas-boot capacity warning - How to free up space???

[Gessi]

Hi,

I am running on FreeNAS 9.10 stable release on a mirrored 16GB USB Stick(s) and get the capacity warnings so I wiped all boot environments except the last two.

Still I have 84% occupied!? How can I free up the space manually or wipe the USB boot images? Just started a scrub process but not sure if that helps...

 

[dlavigne]

What's the output of zpool status ?

 

[Gessi]

pool: freenas-boot
state: ONLINE
scan: scrub repaired 0 in 0h5m with 0 errors on Sun May 15 13:43:49 2016
config:

NAME STATE READ WRITE CKSUM
freenas-boot ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
da0p2 ONLINE 0 0 0
da1p2 ONLINE 0 0 0

errors: No known data errors

 

[dlavigne]

My bad (need more coffee). Meant to ask for output of zfs list freenas-boot .

 

[Gessi]

# zfs list freenas-boot
NAME USED AVAIL REFER MOUNTPOINT
freenas-boot 12.0G 1.90G 31K none

P.S.: I deleted the last boot Image but still 83% full

 

[MrToddsFriends]

The output of zfs list -r freenas-boot eventually gives some more bits of information.

 

[Gessi]

# zfs list -r freenas-boot
NAME USED AVAIL REFER MOUNTPOINT
freenas-boot 12.0G 1.90G 31K none
freenas-boot/ROOT 12.0G 1.90G 25K none
freenas-boot/ROOT/9.10-STABLE-201605021851 12.0G 1.90G 12.0G /
freenas-boot/grub

 

[MrToddsFriends]

For whatever reason your current boot environment takes up very much space.

For comparison:

Code:

NAME                                                USED  AVAIL  REFER  MOUNTPOINT
freenas-boot                                       3.94G  9.98G    31K  none
freenas-boot/ROOT                                  3.39G  9.98G    31K  none
freenas-boot/ROOT/9.10-STABLE-201604140622         9.95M  9.98G  1010M  /
freenas-boot/ROOT/9.10-STABLE-201604181743         10.8M  9.98G   943M  /
freenas-boot/ROOT/9.10-STABLE-201604261518         9.81M  9.98G   954M  /
freenas-boot/ROOT/9.10-STABLE-201605021851         3.35G  9.98G  1001M  /
freenas-boot/ROOT/FreeNAS-9.3-STABLE-201602031011  8.31M  9.98G  1.01G  /
freenas-boot/grub                                   550M  9.98G  10.3M  legacy

 

[Gessi]

This is odd.... How can I investigate further on and fix this?

 

[MrToddsFriends]

I'm not sure, maybe a process that writes tons of logs is causing this. The system dataset seems to be not on the boot media, correct?

 

[Gessi]

I'm not sure, maybe a process that writes tons of logs is causing this. The system dataset seems to be not on the boot media, correct?

Nope... it's not on the boot device

 

[MrToddsFriends]

du -d 1 -x / should help to see where all those data reside.

Code:

# du -d 1 -x /
8       /etc
864066  /usr
1234    /bin
5896    /sbin
10397   /lib
7961    /rescue
19011   /conf
24639   /data
2       /media
83329   /boot
155     /libexec
4       /mnt
3       /compat
4       /var
563     /root
2       /proc
1       /dev
1017290 /

 

[Gessi]

# du -d 1 -x /
3 /proc
120 /root
8 /mnt
91938 /boot
1 /dev
8 /var
9652 /rescue
20366 /conf
24079533 /nonexistent
16 /etc
33697 /data
7232 /sbin
850349 /usr
1446 /bin
3 /media
10810 /lib
6 /compat
198 /libexec
25105416 /

 

[Gessi]

Thanks buddy! That fixed the issue for me as obviously a faulty ftp setup saved data into /nonexistent and filled up the USB flash drive.
I was yesterday attaching 2x CCcams via ftp and obviously provided a wrong ftp server+dir which ended up in uploading the video and snapshots into the root folder of the FreeNAS environment (mounted on /).
I deleted this data now with "rm -rf /nonexistent" and disabled the ftp server for now as I need to make sure it's all uploaded into a dataset used solely for ftp...

Now it looks much better and only 3% used up ;-)

 

[hikurakx]

Hi, I'm having a similar issues and still not sure what is filling it up, please help.

ran zpool list freenas-boot:

then: zfs list -r freenas-boot:

then: du -d 1 -x /:

Can someone please help? Thank you!!!

 

[Gessi]

Check what exactly is in your /nonexistent directory... That might give you some more background as you could probably identify the files...

After wipe that folder if you are sure that you don't need this data anymore...otherwise copy it off to /mnt/poolXYZ or somewhere else first before you wipe with "rm -Rf /nonexistent"

 

[hikurakx]

I wiped the folder with "rm -Rf /nonexistent", but it's still the same:

thanks,

 

[Gessi]

Then obviously some process is saving data in there...you need to findout what process and what data...

 

[hikurakx]

Hmm, I checked and still can't find it.. :(:(:(:(

 

[Robert Trevellyan]

I wiped the folder with "rm -Rf /nonexistent", but it's still the same:

Then the space is being held by a snapshot.