452 4.3.1 Insufficient system storage

This morning I saw log entries I’ve never noticed before. They seem to have started 9 hours ago. First, this email arrived.

cliff2 is one one two hosts behind cliff:

[7:25 pro05 dvl ~] % host cliff
cliff.int.unixathome.org has address 10.55.0.44
cliff.int.unixathome.org has address 10.55.0.14

In this post:

  • FreeBSD 15.0
  • Jan 18 18:34:48 cliff2 pkg[70008]: postfix upgraded: 3.10.3,1 -> 3.10.6,1
  • the host is r730-01 (that post was created before this host was upodated to FreeBSD 15.0)
  • Of the 16 emails received, they were all about cliff2, never cliff1.

    Date: Wed, 18 Feb 2026 12:22:30 +0000 (UTC)
    From: Mail Delivery System <MAILER-DAEMON@cliff2.int.unixathome.org>
    To: Postmaster <postmaster@cliff2.int.unixathome.org>
    Subject: Postfix SMTP server: errors from webserver.int.unixathome.org[10.55.0.3]
    Message-Id: <20260218122230.767072C399@cliff2.int.unixathome.org>
    
    Transcript of session follows.
    
     Out: 220 cliff2.int.unixathome.org ESMTP Postfix
     In:  EHLO webserver.int.unixathome.org
     Out: 250-cliff2.int.unixathome.org
     Out: 250-PIPELINING
     Out: 250-SIZE 10485760000
     Out: 250-ETRN
     Out: 250-STARTTLS
     Out: 250-ENHANCEDSTATUSCODES
     Out: 250-8BITMIME
     Out: 250-DSN
     Out: 250-SMTPUTF8
     Out: 250 CHUNKING
     In:  STARTTLS
     Out: 220 2.0.0 Ready to start TLS
     In:  EHLO webserver.int.unixathome.org
     Out: 250-cliff2.int.unixathome.org
     Out: 250-PIPELINING
     Out: 250-SIZE 10485760000
     Out: 250-ETRN
     Out: 250-ENHANCEDSTATUSCODES
     Out: 250-8BITMIME
     Out: 250-DSN
     Out: 250-SMTPUTF8
     Out: 250 CHUNKING
     In:  MAIL FROM:<nagios@webserver.int.unixathome.org>
     Out: 452 4.3.1 Insufficient system storage
    
    Session aborted, reason: lost connection
    
    For other details, see the local mail logfile
    

    There were also a few email from MAIL FROM: but most were like the above.

    Log entries

    The log entries for the sending host are:

    Feb 18 12:22:30 webserver dma[15199]: new mail from user=nagios uid=181 envelope_from=<nagios@webserver.int.unixathome.org>
    Feb 18 12:22:30 webserver dma[15199]: mail to=<dan@langille.org> queued as 15199.3f8617a420a0
    Feb 18 12:22:30 webserver dma[15199.3f8617a420a0][98813]: <dan@langille.org> trying delivery
    Feb 18 12:22:30 webserver dma[15199.3f8617a420a0][98813]: using smarthost (cliff.int.unixathome.org:25)
    Feb 18 12:22:30 webserver dma[15199.3f8617a420a0][98813]: trying remote delivery to cliff.int.unixathome.org [10.55.0.44] pref 0
    Feb 18 12:22:30 webserver dma[15199.3f8617a420a0][98813]: remote delivery deferred: cliff.int.unixathome.org [10.55.0.44] failed after MAIL FROM: 452 4.3.1 Insufficient system storage
    Feb 18 12:22:30 webserver dma[15199.3f8617a420a0][98813]: trying remote delivery to cliff.int.unixathome.org [10.55.0.14] pref 0
    Feb 18 12:22:30 webserver dma[15199.3f8617a420a0][98813]: <dan@langille.org> delivery successful
    

    On the receiving host (cliff2), I found:

    Feb 18 12:22:02 cliff2 postfix/smtpd[95569]: disconnect from webserver.int.unixathome.org[10.55.0.3] helo=1 quit=1 commands=2
    Feb 18 12:22:30 cliff2 postfix/smtpd[95569]: connect from webserver.int.unixathome.org[10.55.0.3]
    Feb 18 12:22:30 cliff2 postfix/smtpd[95569]: Anonymous TLS connection established from webserver.int.unixathome.org[10.55.0.3]: TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature RSA-PSS (2048 bits) server-digest SHA256
    Feb 18 12:22:30 cliff2 postfix/smtpd[95569]: NOQUEUE: reject: MAIL from webserver.int.unixathome.org[10.55.0.3]: 452 4.3.1 Insufficient system storage; proto=ESMTP helo=<webserver.int.unixathome.org>
    Feb 18 12:22:30 cliff2 postfix/smtpd[95569]: warning: not enough free space in mail queue: 15472168960 bytes < 1.5*message size limit
    Feb 18 12:22:30 cliff2 postfix/smtpd[95569]: NOQUEUE: lost connection after MAIL from webserver.int.unixathome.org[10.55.0.3]
    Feb 18 12:22:30 cliff2 postfix/cleanup[98873]: 767072C399: message-id=<20260218122230.767072C399@cliff2.int.unixathome.org>
    Feb 18 12:22:30 cliff2 postfix/smtpd[95569]: disconnect from webserver.int.unixathome.org[10.55.0.3] ehlo=2 starttls=1 mail=0/1 commands=3/4
    Feb 18 12:22:30 cliff2 postfix/qmgr[7445]: 767072C399: from=<double-bounce@cliff2.int.unixathome.org>, size=1277, nrcpt=1 (queue active)
    Feb 18 12:22:30 cliff2 postfix/cleanup[98873]: 79B732C911: message-id=<20260218122230.767072C399@cliff2.int.unixathome.org>
    Feb 18 12:22:30 cliff2 postfix/local[98877]: 767072C399: to=<postmaster@cliff2.int.unixathome.org>, orig_to=<postmaster>, relay=local, delay=0.02, delays=0.01/0.01/0/0, dsn=2.0.0, status=sent (forwarded as 79B732C911)
    Feb 18 12:22:30 cliff2 postfix/qmgr[7445]: 79B732C911: from=<double-bounce@cliff2.int.unixathome.org>, size=1434, nrcpt=1 (queue active)
    Feb 18 12:22:30 cliff2 postfix/qmgr[7445]: 767072C399: removed
    Feb 18 12:22:30 cliff2 postfix/smtp[98880]: Untrusted TLS connection established to smtp.fastmail.com[103.168.172.60]:587: TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519
    Feb 18 12:22:30 cliff2 postfix/smtp[98880]: 79B732C911: to=<dan@langille.org>, orig_to=<postmaster>, relay=smtp.fastmail.com[103.168.172.60]:587, delay=0.36, delays=0/0.01/0.11/0.23, dsn=2.0.0, status=sent (250 2.0.0 Ok: queued as CF51A800C2 ti_phl-compute-08_3001043_1771417350_11 via phl-compute-08)
    Feb 18 12:22:30 cliff2 postfix/qmgr[7445]: 79B732C911: removed
    

    The mail queues on both hosts are empty.

    Is it really a space issue?

    No, it’s a mail configuration issue. See line 5, highlighted above.

    That message repeats:

    [12:35 cliff2 dvl ~] % sudo grep 'warning: not enough free space in mail queue'  /var/log/maillog
    Feb 18 04:46:54 cliff2 postfix/smtpd[11796]: warning: not enough free space in mail queue: 15723220992 bytes < 1.5*message size limit
    Feb 18 04:47:35 cliff2 postfix/smtpd[11796]: warning: not enough free space in mail queue: 15720923136 bytes < 1.5*message size limit
    Feb 18 05:47:10 cliff2 postfix/smtpd[84061]: warning: not enough free space in mail queue: 15652507648 bytes < 1.5*message size limit
    Feb 18 06:31:40 cliff2 postfix/smtpd[3824]: warning: not enough free space in mail queue: 15704023040 bytes < 1.5*message size limit
    Feb 18 06:31:50 cliff2 postfix/smtpd[3824]: warning: not enough free space in mail queue: 15688192000 bytes < 1.5*message size limit
    Feb 18 06:32:20 cliff2 postfix/smtpd[3824]: warning: not enough free space in mail queue: 15684222976 bytes < 1.5*message size limit
    Feb 18 07:35:50 cliff2 postfix/smtpd[90728]: warning: not enough free space in mail queue: 15561146368 bytes < 1.5*message size limit
    Feb 18 07:40:51 cliff2 postfix/smtpd[10376]: warning: not enough free space in mail queue: 15549181952 bytes < 1.5*message size limit
    Feb 18 08:27:51 cliff2 postfix/smtpd[32105]: warning: not enough free space in mail queue: 15599861760 bytes < 1.5*message size limit
    Feb 18 08:27:51 cliff2 postfix/smtpd[38446]: warning: not enough free space in mail queue: 15599861760 bytes < 1.5*message size limit
    Feb 18 08:31:10 cliff2 postfix/smtpd[49465]: warning: not enough free space in mail queue: 15538733056 bytes < 1.5*message size limit
    Feb 18 08:31:41 cliff2 postfix/smtpd[49465]: warning: not enough free space in mail queue: 15529779200 bytes < 1.5*message size limit
    Feb 18 10:22:30 cliff2 postfix/smtpd[2402]: warning: not enough free space in mail queue: 15584747520 bytes < 1.5*message size limit
    Feb 18 11:22:30 cliff2 postfix/smtpd[6039]: warning: not enough free space in mail queue: 15494496256 bytes < 1.5*message size limit
    Feb 18 12:02:02 cliff2 postfix/smtpd[6761]: warning: not enough free space in mail queue: 15571550208 bytes < 1.5*message size limit
    Feb 18 12:22:30 cliff2 postfix/smtpd[95569]: warning: not enough free space in mail queue: 15472168960 bytes < 1.5*message size limit
    [12:35 cliff2 dvl ~] % 
    

    It seems someone wants to send a bigger message. 15GB email? I don’t think so. You’re not sending that. At first, I thought, I’ll just boost the limit. In this case, no. Don’t send me that email.

    I suspect the email is from Nagios. I suspect the email is generated by a notification and for some reason, it has exploded.

    Nagios restart

    I’ve discovered that Nagios restart reproduces the problem.

    Let’s deliver that email locally by commenting out this line from /etc/mail/aliases:

    #root:  dan@langille.org
    

    … and restarting Nagios did not generate the issue.

    What is also interesting, I’m seeing similar reports such as Postfix SMTP server: errors from unifi01.int.unixathome.org[10.55.0.131] – yet the mail log on unifi01 is empty. Logging is working:

    [16:38 unifi01 dvl ~] % sudo cat /var/log/maillog    
    Feb 18 00:00:00 unifi01 newsyslog[98880]: logfile turned over
    Feb 18 16:38:45 unifi01 dma[4d136][84888]: new mail from user=dvl uid=1002 envelope_from=<dvl@unifi01.int.unixathome.org>
    Feb 18 16:38:45 unifi01 dma[4d136][84888]: mail to=<dan@langille.org> queued as 4d136.372c11442000
    Feb 18 16:38:45 unifi01 dma[4d136.372c11442000][84890]: <dan@langille.org> trying delivery
    Feb 18 16:38:45 unifi01 dma[4d136.372c11442000][84890]: using smarthost (cliff.int.unixathome.org:25)
    Feb 18 16:38:45 unifi01 dma[4d136.372c11442000][84890]: trying remote delivery to cliff.int.unixathome.org [10.55.0.14] pref 0
    Feb 18 16:38:45 unifi01 dma[4d136.372c11442000][84890]: <dan@langille.org> delivery successful
    

    Yet, cliff2 says mail came from there:

    Feb 18 16:23:41 cliff2 postfix/smtpd[28059]: connect from unifi01.int.unixathome.org[10.55.0.131]
    Feb 18 16:23:41 cliff2 postfix/smtpd[28059]: Anonymous TLS connection established from unifi01.int.unixathome.org[10.55.0.131]: TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (25
    6/256 bits) key-exchange x25519 server-signature RSA-PSS (2048 bits) server-digest SHA256
    Feb 18 16:23:41 cliff2 postfix/smtpd[28059]: NOQUEUE: reject: MAIL from unifi01.int.unixathome.org[10.55.0.131]: 452 4.3.1 Insufficient system storage; proto=ESMTP helo=<unif
    i01.int.unixathome.org>
    Feb 18 16:23:41 cliff2 postfix/smtpd[28059]: warning: not enough free space in mail queue: 15225958400 bytes < 1.5*message size limit
    Feb 18 16:23:41 cliff2 postfix/cleanup[28068]: EF82B2C5A0: message-id=<20260218162341.EF82B2C5A0@cliff2.int.unixathome.org>
    Feb 18 16:23:41 cliff2 postfix/smtpd[28059]: disconnect from unifi01.int.unixathome.org[10.55.0.131] ehlo=2 starttls=1 mail=0/1 rset=1 quit=1 commands=5/6
    Feb 18 16:23:41 cliff2 postfix/qmgr[7445]: EF82B2C5A0: from=<double-bounce@cliff2.int.unixathome.org>, size=1278, nrcpt=1 (queue active)
    Feb 18 16:23:41 cliff2 postfix/cleanup[28068]: F2A122BB68: message-id=<20260218162341.EF82B2C5A0@cliff2.int.unixathome.org>
    Feb 18 16:23:41 cliff2 postfix/local[28069]: EF82B2C5A0: to=<postmaster@cliff2.int.unixathome.org>, orig_to=<postmaster>, relay=local, delay=0.02, delays=0.01/0.01/0/0, dsn=2.0.0, status=sent (forwarded as F2A122BB68)
    Feb 18 16:23:41 cliff2 postfix/qmgr[7445]: F2A122BB68: from=<double-bounce@cliff2.int.unixathome.org>, size=1435, nrcpt=1 (queue active)
    Feb 18 16:23:41 cliff2 postfix/qmgr[7445]: EF82B2C5A0: removed
    Feb 18 16:23:42 cliff2 postfix/smtp[28070]: Untrusted TLS connection established to smtp.fastmail.com[103.168.172.60]:587: TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature RSA-PSS (2048 bits) server-digest SHA256
    Feb 18 16:23:42 cliff2 postfix/smtp[28070]: F2A122BB68: to=<dan@langille.org>, orig_to=<postmaster>, relay=smtp.fastmail.com[103.168.172.60]:587, delay=0.65, delays=0/0.01/0.21/0.42, dsn=2.0.0, status=sent (250 2.0.0 Ok: queued as 8FF3E80104 ti_phl-compute-08_3096974_1771431822_1 via phl-compute-08)
    Feb 18 16:23:42 cliff2 postfix/qmgr[7445]: F2A122BB68: removed
    

    Now I’m wonderng if this is a Postfix configuration issue?

    I did a postconf -n difference between the two hosts:

    [12:00 pro05 dvl ~/tmp] % diff -ruN  cliff1 cliff2
    --- cliff1	2026-02-18 12:00:00
    +++ cliff2	2026-02-18 11:59:20
    @@ -1,4 +1,4 @@
    -[16:59 cliff1 dvl ~] % postconf -n
    +[16:58 cliff2 dvl ~] % postconf -n
     alias_maps = hash:/etc/mail/aliases
     command_directory = /usr/local/sbin
     compatibility_level = 3.6
    @@ -17,7 +17,7 @@
     message_size_limit = 10485760000
     meta_directory = /usr/local/libexec/postfix
     mydestination = $myhostname, localhost.$mydomain, localhost
    -myhostname = cliff1.int.unixathome.org
    +myhostname = cliff2.int.unixathome.org
     mynetworks_style = class
     newaliases_path = /usr/local/bin/newaliases
     queue_directory = /var/spool/postfix
    [12:00 pro05 dvl ~/tmp] % 
    

    Nothing.

    Another source

    Feb 18 18:02:02 dns-hidden-master dma[3ad8b][35058]: new mail from user=logcheck uid=915 envelope_from=<logcheck@dns-hidden-master.int.unixathome.org>
    Feb 18 18:02:02 dns-hidden-master dma[3ad8b][35058]: mail to=<dan@langille.org> queued as 3ad8b.51b887042000
    Feb 18 18:02:02 dns-hidden-master dma[3ad8b.51b887042000][35110]: <dan@langille.org> trying delivery
    Feb 18 18:02:02 dns-hidden-master dma[3ad8b.51b887042000][35110]: using smarthost (cliff.int.unixathome.org:25)
    Feb 18 18:02:02 dns-hidden-master dma[3ad8b.51b887042000][35110]: trying remote delivery to cliff.int.unixathome.org [10.55.0.44] pref 0
    Feb 18 18:02:02 dns-hidden-master dma[3ad8b.51b887042000][35110]: remote delivery deferred: cliff.int.unixathome.org [10.55.0.44] failed after MAIL FROM: 452 4.3.1 Insufficient system storage
    Feb 18 18:02:02 dns-hidden-master dma[3ad8b.51b887042000][35110]: trying remote delivery to cliff.int.unixathome.org [10.55.0.14] pref 0
    

    Then I tried manually from that same source:

    [18:03 dns-hidden-master dvl ~] % echo testing | mail dan@langille.org
    

    The log entries:

    Feb 18 18:03:51 dns-hidden-master dma[39652]: new mail from user=dvl uid=1002 envelope_from=<dvl@dns-hidden-master.int.unixathome.org>
    Feb 18 18:03:51 dns-hidden-master dma[39652]: mail to=<dan@langille.org> queued as 39652.3ee88ac42000
    Feb 18 18:03:51 dns-hidden-master dma[39652.3ee88ac42000][45462]: <dan@langille.org> trying delivery
    Feb 18 18:03:51 dns-hidden-master dma[39652.3ee88ac42000][45462]: using smarthost (cliff.int.unixathome.org:25)
    Feb 18 18:03:51 dns-hidden-master dma[39652.3ee88ac42000][45462]: trying remote delivery to cliff.int.unixathome.org [10.55.0.44] pref 0
    Feb 18 18:03:51 dns-hidden-master dma[39652.3ee88ac42000][45462]: remote delivery deferred: cliff.int.unixathome.org [10.55.0.44] failed after MAIL FROM: 452 4.3.1 Insufficient system storage
    Feb 18 18:03:51 dns-hidden-master dma[39652.3ee88ac42000][45462]: trying remote delivery to cliff.int.unixathome.org [10.55.0.14] pref 0
    Feb 18 18:03:51 dns-hidden-master dma[39652.3ee88ac42000][45462]: <dan@langille.org> delivery successful
    

    So, a very small message is triggering the event. I tried again. It is repeatable.

    Simple telnet

    telnet is a time honored tool. The following highlighted lines are the ones I typed.

    [18:24 mydev dvl ~] % telnet cliff2 25
    Trying 10.55.0.44...
    Connected to cliff2.int.unixathome.org.
    Escape character is '^]'.
    220 cliff2.int.unixathome.org ESMTP Postfix
    EHLO mydev                          
    250-cliff2.int.unixathome.org
    250-PIPELINING
    250-SIZE 10485760000
    250-ETRN
    250-STARTTLS
    250-ENHANCEDSTATUSCODES
    250-8BITMIME
    250-DSN
    250-SMTPUTF8
    250 CHUNKING
    MAIL FROM:dan@langille.org
    452 4.3.1 Insufficient system storage
    

    So, that’s the same as the stuff at the top of this post, apart from STARTTLS which I was not prepared to from within telnet.

    I tried this with cliff1 – flawless. All good there.

    Restarting postfix, then the jail

    I’m sure it’s not space:

    [16:54 r730-01 dvl ~] % zpool list
    NAME     SIZE  ALLOC   FREE  CKPOINT  EXPANDSZ   FRAG    CAP  DEDUP    HEALTH  ALTROOT
    data01  5.81T  6.36G  5.81T        -         -     2%     0%  1.00x    ONLINE  -
    data02   928G   705G   223G        -         -    67%    75%  1.00x    ONLINE  -
    data03  7.25T  1.30T  5.95T        -         -    49%    17%  1.00x    ONLINE  -
    data04  29.1T  6.11T  23.0T        -         -     0%    21%  1.00x    ONLINE  -
    zroot    107G  47.9G  59.1G        -         -    54%    44%  1.00x    ONLINE  -
    [18:30 r730-01 dvl ~] % zfs list | grep cliff2
    data02/jails/cliff2                                                 4.00G  13.6G  2.46G  /jails/cliff2
    

    It’s all just one filesystem in there:

    [18:36 cliff2 dvl ~] % zfs list
    no datasets available
    [18:36 cliff2 dvl ~] % df -h
    Filesystem             Size    Used   Avail Capacity  Mounted on
    data02/jails/cliff2     16G    2.5G     14G    15%    /
    

    Let’s try:

    [18:30 cliff2 dvl ~] % sudo service postfix restart
    postfix/postfix-script: stopping the Postfix mail system
    postfix/postfix-script: starting the Postfix mail system
    [18:30 cliff2 dvl ~] % 
    

    That didn’t help.

    I tried a jail restart, did not help:

    [18:31 r730-01 dvl ~] % sudo service jail restart cliff2
    Stopping jails: cliff2.
    Starting jails: cliff2.
    

    Let’s try snapshots:

    [18:37 r730-01 dvl ~] % zfs list -r -t snapshot data02/jails/cliff2 | grep -v @autosnap
    NAME                                                          USED  AVAIL  REFER  MOUNTPOINT
    data02/jails/cliff2@mkjail-202509051453                       725M      -  2.24G  -
    data02/jails/cliff2@mkjail-202602101242                       716M      -  2.38G  -
    

    Let’s destroy those two:

    [18:37 r730-01 dvl ~] % sudo zfs destroy data02/jails/cliff2@mkjail-202509051453
    [18:37 r730-01 dvl ~] % sudo zfs destroy data02/jails/cliff2@mkjail-202602101242
    

    Umm, that seems to have fixed it:

    [18:39 mydev dvl ~] % telnet cliff2 25
    Trying 10.55.0.44...
    Connected to cliff2.int.unixathome.org.
    Escape character is '^]'.
    220 cliff2.int.unixathome.org ESMTP Postfix
    EHLO mydev
    250-cliff2.int.unixathome.org
    250-PIPELINING
    250-SIZE 10485760000
    250-ETRN
    250-STARTTLS
    250-ENHANCEDSTATUSCODES
    250-8BITMIME
    250-DSN
    250-SMTPUTF8
    250 CHUNKING
    MAIL FROM:dan@langille.org
    250 2.1.0 Ok
    

    WTF?

    [18:39 r730-01 dvl ~] % zfs list data02/jails/cliff2
    NAME                  USED  AVAIL  REFER  MOUNTPOINT
    data02/jails/cliff2  2.53G  15.0G  2.46G  /jails/cliff2
    [18:39 r730-01 dvl ~] % zpool list data02
    NAME     SIZE  ALLOC   FREE  CKPOINT  EXPANDSZ   FRAG    CAP  DEDUP    HEALTH  ALTROOT
    data02   928G   704G   224G        -         -    66%    75%  1.00x    ONLINE  -
    [18:40 r730-01 dvl ~] % 
    

    No quota or reservation

    The pool had 223G free at the start of this.

    Let’s look around…

    [18:40 r730-01 dvl ~] % zfs get all data02/jails/cliff2 | grep quota
    data02/jails/cliff2  quota                   none                      default
    data02/jails/cliff2  refquota                none                      default
    data02/jails/cliff2  defaultuserquota        0                         -
    data02/jails/cliff2  defaultgroupquota       0                         -
    data02/jails/cliff2  defaultprojectquota     0                         -
    data02/jails/cliff2  defaultuserobjquota     0                         -
    data02/jails/cliff2  defaultgroupobjquota    0                         -
    data02/jails/cliff2  defaultprojectobjquota  0                         -
    [18:41 r730-01 dvl ~] % zfs get all data02/jails | grep quota 
    data02/jails  quota                   none                      default
    data02/jails  refquota                none                      default
    data02/jails  defaultuserquota        0                         -
    data02/jails  defaultgroupquota       0                         -
    data02/jails  defaultprojectquota     0                         -
    data02/jails  defaultuserobjquota     0                         -
    data02/jails  defaultgroupobjquota    0                         -
    data02/jails  defaultprojectobjquota  0                         -
    [18:41 r730-01 dvl ~] % zfs get all data02 | grep quota 
    data02  quota                   none                      default
    data02  refquota                none                      default
    data02  defaultuserquota        0                         -
    data02  defaultgroupquota       0                         -
    data02  defaultprojectquota     0                         -
    data02  defaultuserobjquota     0                         -
    data02  defaultgroupobjquota    0                         -
    data02  defaultprojectobjquota  0                         -
    [18:41 r730-01 dvl ~] % zfs get all data02 | grep reserve
    [18:41 r730-01 dvl ~] % zfs get all data02 | grep res    
    data02  compressratio           1.79x                     -
    data02  reservation             none                      default
    data02  compression             zstd                      received
    data02  aclinherit              restricted                default
    data02  sharesmb                off                       default
    data02  refreservation          none                      default
    data02  usedbyrefreservation    0B                        -
    data02  refcompressratio        1.00x                     -
    [18:41 r730-01 dvl ~] % zfs get all data02/jails/cliff2 | grep reservation
    data02/jails/cliff2  reservation             none                      default
    data02/jails/cliff2  refreservation          none                      default
    data02/jails/cliff2  usedbyrefreservation    0B                        -
    [18:42 r730-01 dvl ~] % zfs get all data02/jails | grep reservation 
    data02/jails  reservation             none                      default
    data02/jails  refreservation          none                      default
    data02/jails  usedbyrefreservation    0B                        -
    [18:42 r730-01 dvl ~] % zfs get all data02 | grep reservation 
    data02  reservation             none                      default
    data02  refreservation          none                      default
    data02  usedbyrefreservation    0B                        -
    [18:42 r730-01 dvl ~] % 
    

    So, what was blocking this?

    zpool status

    As an afterthought:

    [18:42 r730-01 dvl ~] % zpool status
      pool: data01
     state: ONLINE
    status: Some supported and requested features are not enabled on the pool.
    	The pool can still be used, but some features are unavailable.
    action: Enable all features using 'zpool upgrade'. Once this is done,
    	the pool may no longer be accessible by software that does not support
    	the features. See zpool-features(7) for details.
      scan: scrub repaired 0B in 00:00:06 with 0 errors on Thu Feb 12 03:53:00 2026
    config:
    
    	NAME                  STATE     READ WRITE CKSUM
    	data01                ONLINE       0     0     0
    	  raidz2-0            ONLINE       0     0     0
    	    gpt/Y7P0A022TEVE  ONLINE       0     0     0
    	    gpt/Y7P0A02ATEVE  ONLINE       0     0     0
    	    gpt/Y7P0A02DTEVE  ONLINE       0     0     0
    	    gpt/Y7P0A02GTEVE  ONLINE       0     0     0
    	    gpt/Y7P0A02LTEVE  ONLINE       0     0     0
    	    gpt/Y7P0A02MTEVE  ONLINE       0     0     0
    	    gpt/Y7P0A02QTEVE  ONLINE       0     0     0
    	    gpt/Y7P0A033TEVE  ONLINE       0     0     0
    
    errors: No known data errors
    
      pool: data02
     state: ONLINE
    status: Some supported and requested features are not enabled on the pool.
    	The pool can still be used, but some features are unavailable.
    action: Enable all features using 'zpool upgrade'. Once this is done,
    	the pool may no longer be accessible by software that does not support
    	the features. See zpool-features(7) for details.
      scan: scrub repaired 0B in 00:08:44 with 0 errors on Wed Feb 18 04:03:38 2026
    config:
    
    	NAME                     STATE     READ WRITE CKSUM
    	data02                   ONLINE       0     0     0
    	  mirror-0               ONLINE       0     0     0
    	    gpt/S6WSNJ0T208743F  ONLINE       0     0     0
    	    gpt/S6WSNJ0T207774T  ONLINE       0     0     0
    
    errors: No known data errors
    
      pool: data03
     state: ONLINE
    status: Some supported and requested features are not enabled on the pool.
    	The pool can still be used, but some features are unavailable.
    action: Enable all features using 'zpool upgrade'. Once this is done,
    	the pool may no longer be accessible by software that does not support
    	the features. See zpool-features(7) for details.
      scan: scrub repaired 0B in 00:49:32 with 0 errors on Thu Feb 12 04:42:48 2026
    config:
    
    	NAME                     STATE     READ WRITE CKSUM
    	data03                   ONLINE       0     0     0
    	  mirror-0               ONLINE       0     0     0
    	    gpt/WD_22492H800867  ONLINE       0     0     0
    	    gpt/WD_230151801284  ONLINE       0     0     0
    	  mirror-1               ONLINE       0     0     0
    	    gpt/WD_230151801478  ONLINE       0     0     0
    	    gpt/WD_230151800473  ONLINE       0     0     0
    
    errors: No known data errors
    
      pool: data04
     state: ONLINE
    status: Some supported and requested features are not enabled on the pool.
    	The pool can still be used, but some features are unavailable.
    action: Enable all features using 'zpool upgrade'. Once this is done,
    	the pool may no longer be accessible by software that does not support
    	the features. See zpool-features(7) for details.
      scan: scrub repaired 0B in 00:48:58 with 0 errors on Wed Feb 18 04:44:04 2026
    config:
    
    	NAME                     STATE     READ WRITE CKSUM
    	data04                   ONLINE       0     0     0
    	  raidz2-0               ONLINE       0     0     0
    	    gpt/S7KGNU0Y722875X  ONLINE       0     0     0
    	    gpt/S7KGNU0Y915666E  ONLINE       0     0     0
    	    gpt/S7KGNU0Y912937J  ONLINE       0     0     0
    	    gpt/S7KGNU0Y912955D  ONLINE       0     0     0
    	    gpt/S7U8NJ0Y716854P  ONLINE       0     0     0
    	    gpt/S7U8NJ0Y716801F  ONLINE       0     0     0
    	    gpt/S757NS0Y700758M  ONLINE       0     0     0
    	    gpt/S757NS0Y700760R  ONLINE       0     0     0
    
    errors: No known data errors
    
      pool: zroot
     state: ONLINE
    status: Some supported and requested features are not enabled on the pool.
    	The pool can still be used, but some features are unavailable.
    action: Enable all features using 'zpool upgrade'. Once this is done,
    	the pool may no longer be accessible by software that does not support
    	the features. See zpool-features(7) for details.
      scan: scrub repaired 0B in 00:02:22 with 0 errors on Tue Feb 17 04:03:50 2026
    config:
    
    	NAME                               STATE     READ WRITE CKSUM
    	zroot                              ONLINE       0     0     0
    	  mirror-0                         ONLINE       0     0     0
    	    gpt/zfs0_20170718AA0000185556  ONLINE       0     0     0
    	    gpt/zfs1_20170719AA1178164201  ONLINE       0     0     0
    
    errors: No known data errors
    
    Website Pin Facebook Twitter Myspace Friendfeed Technorati del.icio.us Digg Google StumbleUpon Premium Responsive

Leave a Comment

Scroll to Top