Re: Promise 378 and ATA Raid

[Heinz Mauelshagen <mauelshagen redhat com>]

On Fri, Jul 08, 2005 at 12:42:57AM +0200, Nicolas DELY wrote:
> Heinz Mauelshagen a écrit :
> > As Molle mentioned: please try 1.0.0.rc8 which should help your case.
> 
> ok
> 
> #  dmraid --version
> dmraid version:		1.0.0.rc8 (2005.05.19)
> dmraid library version:	1.0.0.rc8 (2005.05.19)
> device-mapper version:	4.4.0
> 
> # dmsetup version
> Library version:   1.01.01 (2005-03-29)
> Driver version:    4.4.0
> 
> >>>>When I've run:
> >>>>$ dmraid -ay
> >>>>
> >>>>I get a new device:
> >>>>/dev/mapper/pdc_gjbjdagge
> 
> I still need to run manually dmraid -ay to enable /dev/mapper/pdc_gjbjdagge
> 
> *cfdisk /dev/mapper/pdc_gjbjdagge shows me almost disk (only 15MB seem
> to be lost on /dev/sda or sdb). I've succeeded in adding partitions:
> 
> Name            Flags  Part Type  FS Type     [Label]  Size (MB)
>  ----------------------------------------------------------------
> pdc_gjbjdagge1  Boot   Primary    Linux ext3           131.61
> pdc_gjbjdagge2        Primary    Linux LVM            159866.55
> 
> partitions are OK
> 
> I would like to use lvm2 on /dev/mapper/pdc_gjbjdagge2, so I've tried
> # pvcreate  /dev/mapper/pdc_gjbjdagge2
> File descriptor 3 left open
> File descriptor 4 left open
> File descriptor 5 left open
>   Device /dev/mapper/pdc_gjbjdagge2 not found.

You need to change the 'devices' section in /etc/lvm/lvm.conf to contain:

scan = [ "/dev", "/dev/mapper" ]
types = [ "device-mapper", 253 ]

Check if the 'filter' line includes 'pdc_' (eg, 'filter = [ "a/pdc_/" ]')

Regards,
Heinz

> 
> I don't know what's wrong? I remember that disk utility on fedora core
> 3/4 works well to manage lvm, what do you advise me to set 2 logical
> part in logical volume taking place in /dev/mapper/pdc_gjbjdagge2 ?
> 
> Nicolas

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Heinz Mauelshagen                                 Red Hat GmbH
Consulting Development Engineer                   Am Sonnenhang 11
Cluster and Storage Development                   56242 Marienrachdorf
                                                  Germany
Mauelshagen RedHat com                            +49 2626 141200
                                                       FAX 924446
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