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Date: Sat, 29 Oct 2011 13:12:28 GMT
From: Sisantha <sisantha@nirmana.de>
To: freebsd-gnats-submit@FreeBSD.org
Subject: GEOM: mirror GPT 
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>Number:         162147
>Category:       kern
>Synopsis:       [geom] mirror GPT: GPT rejected -- may not be recoverable
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    freebsd-geom
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Oct 29 13:20:03 UTC 2011
>Closed-Date:    Mon Nov 28 15:36:27 UTC 2011
>Last-Modified:  Mon Nov 28 15:36:27 UTC 2011
>Originator:     Sisantha
>Release:        FreeBSD version 9.0RC1
>Organization:
>Environment:
f9server# uname -a
FreeBSD f9server.nirmana.de 9.0-RC1 FreeBSD 9.0-RC1 #0: Tue Oct 18 18:30:38 UTC 2011     root@obrian.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  i386

>Description:
Implementing GMIRROR with 2X2TB or 2X1TB diskd with FreeBSD V.9RC1

after issuing:
1.
# sysctl kern.geom.debugflags=17
2.
gmirror label -vb round-robin gm0 /dev/ada0 
( my disks are:
f9server# df -h
Filesystem     Size    Used   Avail Capacity  Mounted on
/dev/ada0p2      1G    210M    716M    23%    /
devfs          1.0k    1.0k      0B   100%    /dev
/dev/ada0p4    122G     32M    112G     0%    /var
/dev/ada0p5    1.7T    2.3G    1.5T     0%    /usr )

3.
#gmirror label -vb round-robin gm0 /dev/ada0
Metadata value stored on /dev/ada0.
Done.

4.
#gmirror load
5.# echo 'geom_mirror_load="YES"' >> /boot/loader.conf
6.

# vi /etc/fstab
7.
:w /etc/fstab.bak.
8.
:%s/ada/mirror\/gm/g
 
But I'm getting 
GEOM: mirror/gm0: corrupt or invalid GPT detected.
GEOM: mirror/gm0: GPT rejected -- may not be recoverable.

I tested this on two servers with:
1. 2X2TB ( allmost new disks)
1. 2X1TB  (less used disks)

Pl. let me know the reasons for this problem as how to solve it.

I appreciate your cooperation.

Regards,

Sisantha







>How-To-Repeat:

>Fix:


>Release-Note:
>Audit-Trail:
Responsible-Changed-From-To: freebsd-bugs->freebsd-geom 
Responsible-Changed-By: linimon 
Responsible-Changed-When: Sat Oct 29 16:22:05 UTC 2011 
Responsible-Changed-Why:  
Over to maintainer(s). 

http://www.freebsd.org/cgi/query-pr.cgi?pr=162147 
State-Changed-From-To: open->closed 
State-Changed-By: jh 
State-Changed-When: Mon Nov 28 15:33:01 UTC 2011 
State-Changed-Why:  
This is not a bug. You overwrite the partition table with the "gmirror 
label -vb round-robin gm0 /dev/ada0" command. Please ask questions on 
the freebsd-questions@ mailing list. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=162147 
>Unformatted:
