freenas-boot running low on space - cleanup snapshots?

[victorhooi]

I'm running FreeNAS 9.3 Nightlies

I've been doing semi-regular updates every few days, and I've noticed recently that I'm getting an alert about disk space on the "freenas-boot" volume.st, I get:

If I do a zfs list:

Code:

[victorhooi@freenas] /% zfs list

NAME                                                         USED  AVAIL  REFER  MOUNTPOINT

datastore                                                   6.53T  1.13T  92.9G  /mnt/datastore

datastore/.system                                           53.0M  1.13T  26.6M  legacy

datastore/.system/configs-a434f5e2f2bb47c98a3fe1393be25c7a   140K  1.13T   140K  legacy

datastore/.system/cores                                     18.3M  1.13T  18.3M  legacy

datastore/.system/rrd-37042de4367b42598a03c21ab0e6644e       209K  1.13T   209K  legacy

datastore/.system/rrd-a434f5e2f2bb47c98a3fe1393be25c7a       140K  1.13T   140K  legacy

datastore/.system/rrd-c781aa6ebd25484c8281ae9d2b2c944c       140K  1.13T   140K  legacy

datastore/.system/rrd-f36704f2fe794cb6a75657843255655d       140K  1.13T   140K  legacy

datastore/.system/samba4                                     529K  1.13T   529K  legacy

datastore/.system/syslog-37042de4367b42598a03c21ab0e6644e    785K  1.13T   785K  legacy

datastore/.system/syslog-a434f5e2f2bb47c98a3fe1393be25c7a    587K  1.13T   587K  legacy

datastore/.system/syslog-c781aa6ebd25484c8281ae9d2b2c944c   4.42M  1.13T  4.42M  legacy

datastore/.system/syslog-f36704f2fe794cb6a75657843255655d   1000K  1.13T  1000K  legacy

datastore/ablage                                            4.68T  1.13T  4.68T  /mnt/datastore/ablage

datastore/comics                                            4.39G  1.13T  4.39G  /mnt/datastore/comics

datastore/datastore                                          215K  1.13T   215K  /mnt/datastore/datastore

datastore/datastore-smb                                      140K  1.13T   140K  /mnt/datastore/datastore-smb

datastore/documents                                         1.37T  1.13T  1.37T  /mnt/datastore/documents

datastore/ebooks                                            74.3M  1.13T  74.3M  /mnt/datastore/ebooks

datastore/jails                                              968M  1.13T   331K  /mnt/datastore/jails

datastore/jails/.warden-template-pluginjail-9.2-x64          796M  1.13T   785M  /mnt/datastore/jails/.warden-template-pluginjail-9.2-x64

datastore/jails/transmission_1                               172M  1.13T   945M  /mnt/datastore/jails/transmission_1

datastore/jails_2                                           2.55G  1.13T   174K  /mnt/datastore/jails_2

datastore/jails_2/.warden-template-pluginjail--x64           506M  1.13T   496M  /mnt/datastore/jails_2/.warden-template-pluginjail--x64

datastore/jails_2/transmission_1                            2.05G  1.13T  2.53G  /mnt/datastore/jails_2/transmission_1

datastore/music                                             2.55G  1.13T  2.55G  /mnt/datastore/music

datastore/photos                                            26.9G  1.13T  26.9G  /mnt/datastore/photos

datastore/software                                          84.2G  1.13T  84.2G  /mnt/datastore/software

datastore/videos                                             276G  1.13T   276G  /mnt/datastore/videos

freenas-boot                                                3.12G   396M    31K  none

freenas-boot/ROOT                                           3.05G   396M    25K  none

freenas-boot/ROOT/FreeNAS-9.3-Nightlies-201505090630        1.10M   396M   512M  /

freenas-boot/ROOT/FreeNAS-9.3-Nightlies-201505240630        1.85M   396M   514M  /

freenas-boot/ROOT/FreeNAS-9.3-Nightlies-201506030630        3.14M   396M   519M  /

freenas-boot/ROOT/FreeNAS-9.3-Nightlies-201506050637         393M   396M   586M  /

freenas-boot/ROOT/FreeNAS-9.3-Nightlies-201506060630        3.04M   396M   588M  /

freenas-boot/ROOT/FreeNAS-9.3-Nightlies-201506160631        3.01M   396M   701M  /

freenas-boot/ROOT/FreeNAS-9.3-Nightlies-201506170630        4.24M   396M   702M  /

freenas-boot/ROOT/FreeNAS-9.3-Nightlies-201506190630        2.65G   396M   702M  /

freenas-boot/ROOT/Initial-Install                              1K   396M   511M  legacy

freenas-boot/ROOT/default                                     42K   396M   511M  legacy

freenas-boot/grub                                           61.0M   396M  6.80M  legacy

and

Code:

[victorhooi@freenas] /% zfs list -t snapshot

NAME                                                                       USED  AVAIL  REFER  MOUNTPOINT

datastore/documents@foo                                                   1.04G      -  1.37T  -

datastore/jails/.warden-template-pluginjail-9.2-x64@clean                 11.1M      -   785M  -

datastore/jails_2/.warden-template-pluginjail--x64@clean                  9.38M      -   496M  -

freenas-boot/ROOT/FreeNAS-9.3-Nightlies-201506190630@2015-05-09-00:03:02  2.31M      -   511M  -

freenas-boot/ROOT/FreeNAS-9.3-Nightlies-201506190630@2015-05-09-00:16:06   273K      -   511M  -

freenas-boot/ROOT/FreeNAS-9.3-Nightlies-201506190630@2015-05-24-22:29:53  41.8M      -   512M  -

freenas-boot/ROOT/FreeNAS-9.3-Nightlies-201506190630@2015-06-06-02:25:09   506M      -   514M  -

freenas-boot/ROOT/FreeNAS-9.3-Nightlies-201506190630@2015-06-06-10:50:51  1.81M      -   518M  -

freenas-boot/ROOT/FreeNAS-9.3-Nightlies-201506190630@2015-06-06-22:20:43  2.72M      -   519M  -

freenas-boot/ROOT/FreeNAS-9.3-Nightlies-201506190630@2015-06-17-23:36:29   394M      -   587M  -

freenas-boot/ROOT/FreeNAS-9.3-Nightlies-201506190630@2015-06-18-07:22:48  11.9M      -   701M  -

freenas-boot/ROOT/FreeNAS-9.3-Nightlies-201506190630@2015-06-20-15:49:30  11.8M      -   702M  -

freenas-boot/grub@Pre-Upgrade-FreeNAS-9.3-Nightlies-201505090630          6.77M      -  6.79M  -

freenas-boot/grub@Pre-Upgrade-FreeNAS-9.3-Nightlies-201505240630          6.78M      -  6.80M  -

freenas-boot/grub@Pre-Upgrade-FreeNAS-9.3-Nightlies-201506030630          6.77M      -  6.79M  -

freenas-boot/grub@Pre-Upgrade-FreeNAS-9.3-Nightlies-201506050637          6.78M      -  6.79M  -

freenas-boot/grub@Pre-Upgrade-FreeNAS-9.3-Nightlies-201506060630          6.78M      -  6.80M  -

freenas-boot/grub@Pre-Upgrade-FreeNAS-9.3-Nightlies-201506160631          6.77M      -  6.79M  -

freenas-boot/grub@Pre-Upgrade-FreeNAS-9.3-Nightlies-201506170630          6.78M      -  6.80M  -

freenas-boot/grub@Pre-Upgrade-FreeNAS-9.3-Nightlies-201506190630          6.78M      -  6.80M  -

Should I be cleaning up those snapshots? Or is there some automated job that does this? If not, would that be a viable feature, to only keep <x> snapshots?

I assume this is related to why I'm running out of space on boot volume?

I note in the WebUI, under System, Boot, there appear to be the snapshots - I assume I can delete them from here, and it would be the same as running zfs destroy?

Cheers,
Victor

 

[Jailer]

Yes you can and should be deleting the old snapshots. Keep one or two known good ones for fallback purposes and delete the rest from the GUI.

 

[Robert Trevellyan]

In the System | Boot screen, select the ones you don't want and click the Delete button.

 

[victorhooi]

Hmm, if I try to delete it via the Web UI, it appears to hang indefinitely at the Please wait screen:

If I try to delete it via the shell:

Code:

[victorhooi@freenas] /% zfs list -t snapshot
NAME                                                                       USED  AVAIL  REFER  MOUNTPOINT
datastore/documents@foo                                                   1.04G      -  1.37T  -
datastore/jails/.warden-template-pluginjail-9.2-x64@clean                 11.1M      -   785M  -
datastore/jails_2/.warden-template-pluginjail--x64@clean                  9.38M      -   496M  -
freenas-boot/ROOT/FreeNAS-9.3-Nightlies-201506190630@2015-05-09-00:03:02  2.31M      -   511M  -
freenas-boot/ROOT/FreeNAS-9.3-Nightlies-201506190630@2015-05-09-00:16:06  2.86M      -   511M  -
freenas-boot/ROOT/FreeNAS-9.3-Nightlies-201506190630@2015-06-06-02:25:09   506M      -   514M  -
freenas-boot/ROOT/FreeNAS-9.3-Nightlies-201506190630@2015-06-06-10:50:51  1.81M      -   518M  -
freenas-boot/ROOT/FreeNAS-9.3-Nightlies-201506190630@2015-06-06-22:20:43  2.72M      -   519M  -
freenas-boot/ROOT/FreeNAS-9.3-Nightlies-201506190630@2015-06-17-23:36:29   394M      -   587M  -
freenas-boot/ROOT/FreeNAS-9.3-Nightlies-201506190630@2015-06-18-07:22:48  11.9M      -   701M  -
freenas-boot/ROOT/FreeNAS-9.3-Nightlies-201506190630@2015-06-20-15:49:30  11.8M      -   702M  -
freenas-boot/ROOT/FreeNAS-9.3-Nightlies-201506190630@2015-06-24-20:01:09  4.20M      -   702M  -
freenas-boot/grub@Pre-Upgrade-FreeNAS-9.3-Nightlies-201505090630          6.77M      -  6.79M  -
freenas-boot/grub@Pre-Upgrade-FreeNAS-9.3-Nightlies-201505240630          6.78M      -  6.80M  -
freenas-boot/grub@Pre-Upgrade-FreeNAS-9.3-Nightlies-201506030630          6.77M      -  6.79M  -
freenas-boot/grub@Pre-Upgrade-FreeNAS-9.3-Nightlies-201506050637          6.78M      -  6.79M  -
freenas-boot/grub@Pre-Upgrade-FreeNAS-9.3-Nightlies-201506060630          6.78M      -  6.80M  -
freenas-boot/grub@Pre-Upgrade-FreeNAS-9.3-Nightlies-201506160631          6.77M      -  6.79M  -
freenas-boot/grub@Pre-Upgrade-FreeNAS-9.3-Nightlies-201506170630          6.78M      -  6.80M  -
freenas-boot/grub@Pre-Upgrade-FreeNAS-9.3-Nightlies-201506190630          6.78M      -  6.80M  -
[victorhooi@freenas] /% zfs destroy freenas-boot/ROOT/FreeNAS-9.3-Nightlies-201506190630@2015-05-09-00:03:02
cannot destroy 'freenas-boot/ROOT/FreeNAS-9.3-Nightlies-201506190630@2015-05-09-00:03:02': snapshot has dependent clones
use '-R' to destroy the following datasets:
freenas-boot/ROOT/Initial-Install

I'm assuming I don't want to use -R? What is the correct way of doing this?

Also, is this something that should be made configurable via the UI? (e.g. keep only <x> last snapshots of freenas-boot?)

 

[Ericloewe]

Assuming you're using USB flash drives, this kind of thing takes time. Let the GUI do its job.

 

[cyberjock]

Assuming you're using USB flash drives, this kind of thing takes time. Let the GUI do its job.

+1

This is another example of why I don't recommend USBs anymore. It can create scenarios that appear to be a problem, but if you wait them out everything should be fine.

 

[Ericloewe]

For reference, my Toshiba drives, which seem to be a bit less sucky with random writes than the ever popular SanDisk Cruzer Fits, need about 20 minutes for an upgrade.

When I had to rollback, it must've taken some 7-10 minutes before I could reboot into the old environment.

 

[cyberjock]

Just as comparison, I just got a warning that my SATA DOM in my FreeNAS Mini was 80% full after updating it this morning. I deleted over 50 snapshots and it took just over an hour, with the first one taking 5+ minutes to delete.

 

[rene0]

I noticed that deleting the boot environments on FreeNAS 11.0-U4 via the GUI (
FreeNAS-9.3-Nightlies-201506190630 in the above example) does not delete the associated(?) snapshots, like
freenas-boot/grub@Pre-Upgrade-FreeNAS-9.3-Nightlies-201505090630. There is no GUI page that lists these snapshots either, as there is for jail snapshots. I can safely delete them from the command line, but I wonder if this is an omission?

 

[Ericloewe]

Your post would've been better in a new thread...

deleting the boot environments on FreeNAS 11.0-U4 via the GUI

Which GUI?