Date: Sat, 14 Jul 2007 20:47:47 -0500 From: Aaron Hurt <aaron@goflexitllc.com> To: freebsd-fs@freebsd.org Subject: gconcat incorrect superblock after adding a disk Message-ID: <46997CC3.3030405@goflexitllc.com>
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I have a fairly decent sized gconcat array composed of 4 disks (ad8 ad10
ad12 ad14) the previous working members. Recently I tried to add
another disk using the following procedure:
umount /dev/concat/store1
gconcat stop store1
gconcat label store1 ad8 ad10 ad12 ad14 ad4
growfs /dev/concat/store1
..... it was at this point that I got the incorrect superblock error
after adding ad4. Now, even if I try to remove ad4 and label with the
original disks (keeping the original order) it still will not mount or
fsck. The exact messages are below:
schroder# mount /dev/concat/store1 /store
mount: /dev/concat/store1 on /store: incorrect super block
Geom name: store1
State: UP
Status: Total=4, Online=4
Type: AUTOMATIC
ID: 1480896172
Providers:
1. Name: concat/store1
Mediasize: 640167540736 (596G)
Sectorsize: 512
Mode: r0w0e0
Consumers:
1. Name: ad8
Mediasize: 120034123776 (112G)
Sectorsize: 512
Mode: r0w0e0
Start: 0
End: 120034123264
2. Name: ad10
Mediasize: 200049647616 (186G)
Sectorsize: 512
Mode: r0w0e0
Start: 120034123264
End: 320083770368
3. Name: ad12
Mediasize: 160041885696 (149G)
Sectorsize: 512
Mode: r0w0e0
Start: 320083770368
End: 480125655552
4. Name: ad14
Mediasize: 160041885696 (149G)
Sectorsize: 512
Mode: r0w0e0
Start: 480125655552
End: 640167540736
schroder# fdisk /dev/concat/store1
******* Working on device /dev/concat/store1 *******
parameters extracted from in-core disklabel are:
cylinders=77829 heads=255 sectors/track=63 (16065 blks/cyl)
Figures below won't work with BIOS for partitions not in cyl 1
parameters to be used for BIOS calculations are:
cylinders=77829 heads=255 sectors/track=63 (16065 blks/cyl)
fdisk: invalid fdisk partition table found
Media sector size is 512
Warning: BIOS sector numbering starts with sector 1
Information from DOS bootblock is:
The data for partition 1 is:
sysid 165 (0xa5),(FreeBSD/NetBSD/386BSD)
start 63, size 1250322822 (610509 Meg), flag 80 (active)
beg: cyl 0/ head 1/ sector 1;
end: cyl 4/ head 254/ sector 63
The data for partition 2 is:
<UNUSED>
The data for partition 3 is:
<UNUSED>
The data for partition 4 is:
<UNUSED>
Any and all help or suggestions would be appreciated. I can be reached
via this email address or by my cell phone number below. The data is
not life threatening since it is just my home server, but there are
several hundred gigs of personal movie clips, family photos and music
and whatnot. I would really like to be able to save this data if at all
possible (and then make an immediate backup of it). I do believe I will
be purchasing some more disks soon for a seperate duplicate machine that
can clone this storage box.
Thank You,
--
Aaron Hurt
Managing Partner
Flex I.T., LLC
611 Commerce Street
Suite 3117
Nashville, TN 37203
Phone: 615.438.7101
E-mail: aaron@goflexitllc.com
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