Re: dmraid 1.0.0.rc14 ddf1 issue

Hi Heinz,

Well, actually I'm not getting 2 different devices.

In the example I've reported, each time I reboot I get just a single
device, but its name changes.

As stated in last e-mail:

1st boot:
/dev/mapper/ddf1_4c53492020202020808627c300000000346e1b3c00000a28

2nd boot:
/dev/mapper/ddf1_4c53492020202020808627c300000000346e1f3100000a28

3rd boot:
/dev/mapper/ddf1_4c53492020202020808627c300000000346e1ff400000a28

I've sent you the image on the last boot (3rd), so you're having device
name ddf1_...e1ff400000a28.

So the problem is that device name get changing each reboot, while I
don't have any other RAID chain in the system.

Regards,

Nhan

Heinz Mauelshagen wrote:

Hi Nhan,

I get the following results with your metadata sample
(/dev/dm-29, /dev/dm-33 being sparse devices in my testbed with
your metadata on):

# dmraid -r
/dev/dm-29: ddf1, ".ddf1_disks", GROUP, ok, 486326272 sectors, data@ 0
/dev/dm-33: ddf1, ".ddf1_disks", GROUP, ok, 486326272 sectors, data@ 0

# dmraid -tay
ddf1_4c53492020202020808627c300000000346e1ff400000a28: 0 486326272 mirror core 2 131072 nosync 2 /dev/dm-29 0 /dev/dm-33 0

After activation:
# dmraid -s
*** Group superset .ddf1_disks
--> Active Subset
name : ddf1_4c53492020202020808627c300000000346e1ff400000a28
size : 486326272
stride : 128
type : mirror
status : ok
subsets: 0
devs : 2
spares : 0

The only device created is:
brw-rw---- 1 root disk 253, 34 19. Nov 11:22 /dev/mapper/ddf1_4c53492020202020808627c300000000346e1ff400000a28

This all looks fine.

I wonder, if you have another drive with DDF metadata on causing the
2 /dev/mapper/ devices ?

Ragards,
Heinz

On Thu, Nov 15, 2007 at 09:52:22PM +0100, Nhan NGO DINH wrote:

Dear Heinz,

Here you are!
Regards,

Heinz Mauelshagen wrote:

Hi Nhan,

please create metadata copies with "dmraid -rD".
Tar/bzip2 the resulting *.{dat,offset,size) files into
isw_ddf1-Nhan_NGO_DINH.tar.bz2 and send it to me for analysis, please.

Regards,
Heinz

On Thu, Nov 15, 2007 at 09:31:29PM +0100, Nhan NGO DINH wrote:

Dear All,

I would like to report an issue with dmraid 1.0.0.rc14 using the
following controller:

Intel Corporation 82801GR/GH (ICH7 Family) SATA RAID Controller
[8086:27c3] (rev 01)

After dmraid -ay devices are mapped under:

/dev/mapper/ddf1_4c53492020202020808627c300000000346e1b3c00000a28

After every reboot, I get device mapper name changing (examples below):

/dev/mapper/ddf1_4c53492020202020808627c300000000346e1f3100000a28
/dev/mapper/ddf1_4c53492020202020808627c300000000346e1ff400000a28

Oviously you still can use /dev/dm-x devices to statically reference
disks in grub and lilo configurations and in /etc/fstab.

Best regards,
Nhan

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Heinz Mauelshagen Red Hat GmbH
Consulting Development Engineer Am Sonnenhang 11
Storage Development 56242 Marienrachdorf
Germany
[email protected] PHONE +49 171 7803392
FAX +49 2626 924446
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--
*Nhan NGO DINH*
Dilogix S.r.l.

Tel: +39 06 85304201
Fax: +39 06 85800461
Cell: +39 328 4711229

http://www.dilogix.it

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

Heinz Mauelshagen Red Hat GmbH
Consulting Development Engineer Am Sonnenhang 11
Storage Development 56242 Marienrachdorf
Germany
[email protected] PHONE +49 171 7803392
FAX +49 2626 924446
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

--
Nhan NGO DINH
Dilogix S.r.l.

Tel: +39 06 85304201
Fax: +39 06 85800436
Cel: +39 328 4711229

e-mail: [email protected]
web: http://www.dilogix.it

See legal notes:
http://www.dilogix.it/legal_mail.html

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