Time Machine issue on 11.3

[EGP]

Could be related to this bug:
https://jira.ixsystems.com/browse/NAS-105911

I hope so!

 

[Mark Levitt]

I hope so!

Well, if you're using AFP, then no, it's not. The bug I referenced would only be relevant if you're using an SMB share for Time Machine.

 

[francescocariati]

I'm also affected by https://jira.ixsystems.com/browse/NAS-105911
as I have fruit enabled on all my shares and I have a time machine quota set in the share parameters (on top of a ZFS dataset quota), which seems to be what's triggering the issue as described in https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=238958

SMB works perfectly with every other share but whenever I try to connect to the timemachine SMB share, the system console gets flooded by "nas kernel: pid 49133 (smbd), jid 0, uid 1000: exited on signal 8"

Seems that it will be fixed in 11.3 U3, let's hope it gets released in the coming days

 

[pjc]

Uh-oh. It looks like the merged fix has a bug. It replaced:

Code:

if (bandsize > SIZE_MAX/nbands)

with

Code:

if (nbands > SIZE_MAX/nbands) {

I think that second condition will never be true, so it won't catch the error condition.

 

[rumbeard]

Is the SMB share also an NFS export? When an SMB share is also an NFS export we automatically configure the share to be as safe as possible in a mixed-protocol environment. These changes disable features that Time Machine relies on, hence "the selected network backup disk does not support the required capabilities".

How do I override this behavior. The share must be available for both NFS (Crashplan) and SMB TimeMachine. I have no worry of corruption since the NFS share is read-only unless I need to do a restore from the cloud.

 

[anodos]

How do I override this behavior. The share must be available for both NFS (Crashplan) and SMB TimeMachine. I have no worry of corruption since the NFS share is read-only unless I need to do a restore from the cloud.

We set the following and so you'll need to unset via auxiliary parameters on the share in question:

Code:

                    pc[share["name"]].update({
                        "strict locking": "yes",
                        "level2 oplocks": "no",
                        "oplocks": "no"
                    })

strict locking = no
level2 oplocks = yes
oplocks = yes

 

[AVSION]

Hi @anodos I am also getting this error "The network backup disk does not support the required capabilities." i use two iMac Mojave 10.14.6 and High Sierra 10.13.6 i created a dedicated dataset for each one for SMB share to connect. the Mojave works fine however the High Sierra get this error. i have tried to delete the dataset, user, group, recreate, restart smb service and update FN to 11.3 U5 but still the same error. before i update the FN 11.2 i also had this issue it would run for a week and then stop. hope you can help.

testparm -s

Code:

user@freenas[~]# testparm -s
Load smb config files from /usr/local/etc/smb4.conf
Loaded services file OK.
Server role: ROLE_STANDALONE

smb4conf file

# Global parameters
[global]
    aio max threads = 2
    bind interfaces only = Yes
    client NTLMv2 auth = No
    disable spoolss = Yes
    dns proxy = No
    enable web service discovery = Yes
    kernel change notify = No
    load printers = No
    logging = file
    max log size = 51200
    nsupdate command = /usr/local/bin/samba-nsupdate -g
    ntlm auth = ntlmv1-permitted
    restrict anonymous = 2
    server min protocol = NT1
    server role = standalone server
    server string = FreeNAS Server
    unix extensions = No
    idmap config *: range = 90000001-100000000
    fruit:nfs_aces = No
    idmap config * : backend = tdb
    allocation roundup size = 0
    directory name cache size = 0
    dos filemode = Yes
    include = /usr/local/etc/smb4_share.conf


[Storage]
    aio write size = 0
    comment = smb Share
    ea support = No
    mangled names = illegal
    path = /mnt/Tank/SMB
    read only = No
    vfs objects = fruit streams_xattr ixnas
    nfs4:acedup = merge
    nfs4:chown = true
    fruit:resource = stream
    fruit:metadata = stream


[timemachine_user1 Mojave]
    aio write size = 0
    comment = TM Backup Rachel
    ea support = No
    mangled names = illegal
    path = /mnt/Tank/timemachine_rachel
    read only = No
    vfs objects = fruit streams_xattr shadow_copy_zfs ixnas
    nfs4:acedup = merge
    nfs4:chown = true
    fruit:volume_uuid = 96a9f83f-ec1a-408f-abe5-5e510d73934b
    fruit:time machine = yes
    fruit:resource = stream
    fruit:metadata = stream


[timemachine_user2 High Sierra]
    aio write size = 0
    ea support = No
    mangled names = illegal
    path = /mnt/Tank/timemachine_yariv
    read only = No
    vfs objects = fruit streams_xattr shadow_copy_zfs ixnas
    nfs4:acedup = merge
    nfs4:chown = true
    fruit:volume_uuid = a2402b1d-eb9b-4f79-8b8f-d25bc12da0ed
    fruit:time machine = yes
    fruit:resource = stream
    fruit:metadata = stream

Code:

[global]
        dns proxy = No
        aio max threads = 2
        max log size = 51200
        allocation roundup size = 0
        load printers = No
        printing = bsd
        disable spoolss = Yes
        dos filemode = Yes
        kernel change notify = No
        directory name cache size = 0
        nsupdate command = /usr/local/bin/samba-nsupdate -g
        unix charset = UTF-8
        log level = 1
        obey pam restrictions = False
        enable web service discovery = True
        logging = file
        server min protocol =  NT1
        unix extensions = No
        restrict anonymous = 2
        ntlm auth = Yes
        client ntlmv2 auth = No
        server string = FreeNAS Server
        fruit:nfs_aces = No
        bind interfaces only = Yes
        netbios name = freenas
        netbios aliases =
        server role = standalone
        workgroup = WORKGROUP
        idmap config *: backend = tdb
        idmap config *: range = 90000001-100000000

        include = /usr/local/etc/smb4_share.conf

 

[GBaughma]

Since updating from 11.2 to 11.3 my mac (latest Catalina release) isn't able to backup to the time machine share anymore. The backup dialogue shows the following error: "the network backup disk does not support the required capabilities". I've already tried several things like deleting and recreating the share. The smb4.conf file does not contain a "fruit:time machine = yes" line. As soon as i reboot with the 11.2 version, time machine backups works like a charm. Does anyone have an idea what is going wrong here?

I was having this issue on 12... and enabling the "Export recycle bin" setting seems to have resolved it.

 

[Littlejd97]

I was having this issue on 12... and enabling the "Export recycle bin" setting seems to have resolved it.

This appears to have also been the solution for me

 

[dabrahams]

This is so weird! For what it's worth, this worked for me without enabling "export recycle bin":

1. Enable "Guest Access" in Sharing > SMB > Edit > Advanced Options.
2. Begin a time machine backup from any Mac to the share.
3. Once a little data has been copied, stop the backup, (optionally) delete the created sparse bundle
4. Disable "Guest Access."
5. Set up as many macs/users as you like connecting to the share. Everything just works.

Since everything is working for me now with "Export recycle bin" off as well, I wonder if @Das_Schaf or @GBaughma are able to turn that option off now with no ill effects?

 

[Tyler73]

This is driving me nuts!

I have tried all the above solutions, thanks to you all btw, but none are working.

test-parm -s:


root@TrueNAS[~]# testparm -s
Load smb config files from /usr/local/etc/smb4.conf
Loaded services file OK.
Weak crypto is allowed
Server role: ROLE_STANDALONE

# Global parameters
[global]
aio max threads = 2
bind interfaces only = Yes
disable spoolss = Yes
dns proxy = No
enable web service discovery = Yes
kernel change notify = No
load printers = No
logging = file
map to guest = Bad User
max log size = 5120
netbios name = FREENAS
nsupdate command = /usr/local/bin/samba-nsupdate -g
registry shares = Yes
server role = standalone server
server string = FreeNAS Server
unix extensions = No
idmap config *: range = 90000001-100000000
fruit:nfs_aces = No
idmap config * : backend = tdb
directory name cache size = 0
dos filemode = Yes


[iMac]
ea support = No
guest ok = Yes
kernel share modes = No
mangled names = no
path = /mnt/Tank/TimeMachine/iMac/%U
posix locking = No
read only = No
vfs objects = fruit streams_xattr
recycle:repository = .recycle/%U
recycle:directory_mode = 0777
recycle:keeptree = yes
recycle:subdir_mode = 0700
recycle:touch = yes
recycle:versions = yes
ixnas:zfs_auto_homedir = true
ixnas:default_user_quota = 1T

I have followed this tutorial: https://youtu.be/iMHa35fA_9k

 

[dabrahams]

This is driving me nuts!

I have tried all the above solutions, thanks to you all btw, but none are working.

If it helps, here's the relevant part of my testparm -s output:

Code:

~ sudo testparm -s
Load smb config files from /usr/local/etc/smb4.conf
Loaded services file OK.
Weak crypto is allowed
Server role: ROLE_STANDALONE

# Global parameters
[global]
    aio max threads = 2
    bind interfaces only = Yes
    disable spoolss = Yes
    dns proxy = No
    enable web service discovery = Yes
    kernel change notify = No
    load printers = No
    logging = file
    max log size = 5120
    nsupdate command = /usr/local/bin/samba-nsupdate -g
    registry shares = Yes
    restrict anonymous = 2
    server role = standalone server
    server string = TrueNAS Server
    unix extensions = No
    idmap config *: range = 90000001-100000000
    fruit:nfs_aces = No
    idmap config * : backend = tdb
    directory name cache size = 0
    dos filemode = Yes


[TimeMachine]
    comment = Time Machine SMB Volume
    ea support = No
    kernel share modes = No
    path = /mnt/tanka/TimeMachine/%U
    posix locking = No
    read only = No
    vfs objects = tmprotect fruit streams_xattr shadow_copy_zfs ixnas aio_fbsd
    ixnas:default_user_quota = 1T
    ixnas:zfs_auto_homedir = true
    fruit:locking = none
    fruit:time machine = yes
    fruit:resource = stream
    fruit:metadata = stream
    nfs4:chown = true

 

[Tyler73]

If it helps, here's the relevant part of my testparm -s output:

Code:

~ sudo testparm -s
Load smb config files from /usr/local/etc/smb4.conf
Loaded services file OK.
Weak crypto is allowed
Server role: ROLE_STANDALONE

# Global parameters
[global]
    aio max threads = 2
    bind interfaces only = Yes
    disable spoolss = Yes
    dns proxy = No
    enable web service discovery = Yes
    kernel change notify = No
    load printers = No
    logging = file
    max log size = 5120
    nsupdate command = /usr/local/bin/samba-nsupdate -g
    registry shares = Yes
    restrict anonymous = 2
    server role = standalone server
    server string = TrueNAS Server
    unix extensions = No
    idmap config *: range = 90000001-100000000
    fruit:nfs_aces = No
    idmap config * : backend = tdb
    directory name cache size = 0
    dos filemode = Yes


[TimeMachine]
    comment = Time Machine NFS Volume
    ea support = No
    kernel share modes = No
    path = /mnt/tanka/TimeMachine/%U
    posix locking = No
    read only = No
    vfs objects = tmprotect fruit streams_xattr shadow_copy_zfs ixnas aio_fbsd
    ixnas:default_user_quota = 1T
    ixnas:zfs_auto_homedir = true
    fruit:locking = none
    fruit:time machine = yes
    fruit:resource = stream
    fruit:metadata = stream
    nfs4:chown = true

Hi and thank you for the reply,

I see that you are using NFS for this share, I have been following a tutorial advising to use SMB. I might give NFS a try and report.

 

[dabrahams]

No, sorry, that's just SMB. The comment = line is a lie!