Date: Thu, 24 Jul 2014 19:15:14 -0700 From: Dave Hayes <dave@jetcafe.org> To: freebsd-stable@FreeBSD.org Subject: Gmirror + gpart corruption on 9.3-PRE Message-ID: <53D1BDB2.7030906@jetcafe.org>
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At 9.3-PRERELEASE #0 r268066M I've been trying unsucessfuly to set up a
brand shiny new gmirror + gpt style Raid 0 mirror using the following
procedure on a disk
gpart create -s gpt ada0
( shows 931G of space)
gpart add -s 96G -t freebsd-swap -l swap0 ada0
gpart add -t freebsd-ufs -l rw0 ada0
gpart create -s gpt ada1
gpart add -s 96G -t freebsd-swap -l swap1 ada1
gpart add -t freebsd-ufs -l rw1 ada1
gmirror label swap /dev/ada0p1 /dev/ada1p1
gmirror label rw /dev/ada0p2 /dev/ada1p2
gpart create -s gpt mirror/swap
gpart add -s95G -t freebsd-swap -l FBCDSWAP mirror/swap
gpart create -s gpt mirror/rw
gpart add -s833G -t freebsd-ufs -l FBCDRW mirror/rw
This consistently gives me the dreaded
GEOM: mirror/rw: the secondary GPT table is corrupt or invalid
just as soon as I provision the mirror/rw device.
I have tried many ideas of padding these partitions so I don't get this
message, but to noavail. I'm willing to try more, the machine isn't live
(yet) so it can sit here while it gets figured out. :)
Back at 9.2-PRERELEASE #0 r255456 I used the same procedure for setting
up a gmirror, and this worked fine with no corruption. Here's the
partition table:
> gpart show
=> 34 976773101 ada0 GPT (465G)
34 46245840 1 freebsd-swap (22G)
46245874 930523232 2 freebsd-ufs (443G)
976769106 4029 - free - (2M)
=> 34 976773101 ada1 GPT (465G)
34 46245840 1 freebsd-swap (22G)
46245874 930523232 2 freebsd-ufs (443G)
976769106 4029 - free - (2M)
=> 34 46245772 mirror/swap0 GPT (22G)
34 46245772 1 freebsd-swap (22G)
=> 34 930523164 mirror/rw0 GPT (443G)
34 926941184 1 freebsd-ufs (442G)
926941218 3581980 - free - (1.7G)
I've since upgraded this machine to the exact same 9.3 revision and it
still works fine, no corruption. Am I missing something or did something
change in between these two revisions that makes it difficult or
different to set up?
Thanks in advance for any insight you all can provide.
--
Dave Hayes - Consultant - Altadena CA, USA - dave@jetcafe.org
>>>> *The opinions expressed above are entirely my own* <<<<
Enjoyment is not a goal,
it is a feeling that accompanies important ongoing activity
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