geom mirror now rebuilding on every reboot?

Maksim Yevmenkin maksim.yevmenkin at
Tue Aug 7 16:26:25 UTC 2012

On Tue, Aug 7, 2012 at 2:22 AM, Dewayne Geraghty
<dewayne.geraghty at> wrote:
>> -----Original Message-----
>> From: owner-freebsd-stable at
>> [mailto:owner-freebsd-stable at] On Behalf Of Frank Reppin
>> Sent: Tuesday, 7 August 2012 11:46 AM
>> To: stable at; current at
>> Subject: Re: geom mirror now rebuilding on every reboot?
>> by any chance...
>> ... is this maybe related to my PR:
> Maksim, Michael,
> After reading Frank's PR, would you please advise how you newfs your
> devices/partitions - are you using SU+J?

i'm not using SU+J, i.e.

# dumpfs -m /dev/mirror/prim
# newfs command for /dev/mirror/prim (/dev/mirror/prim)
newfs -O 2 -a 16 -b 65536 -d 65536 -e 8192 -f 8192 -g 16384 -h 64 -m 8
-o time -s 6291440 -t /dev/mirror/prim

# tunefs -p /dev/mirror/prim
tunefs: POSIX.1e ACLs: (-a)                                disabled
tunefs: NFSv4 ACLs: (-N)                                   disabled
tunefs: MAC multilabel: (-l)                               disabled
tunefs: soft updates: (-n)                                 disabled
tunefs: soft update journaling: (-j)                       disabled
tunefs: gjournal: (-J)                                     disabled
tunefs: trim: (-t)                                         enabled
tunefs: maximum blocks per file in a cylinder group: (-e)  8192
tunefs: average file size: (-f)                            16384
tunefs: average number of files in a directory: (-s)       64
tunefs: minimum percentage of free space: (-m)             8%
tunefs: optimization preference: (-o)                      time
tunefs: volume label: (-L)


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