Request for method to exempt arrays from handling

Heinz Mauelshagen mauelshagen at
Thu Jun 8 08:08:06 UTC 2006

On Wed, Jun 07, 2006 at 10:51:15PM -0400, Forge wrote:
> (Please skip to **less** or **minimal** for less verbosity)
> I have something of a unique problem here. I currently run three disks on my
> motherboard and a 3Ware card. The three discs on the motherboard (the dmraid
> arrays) are two WD 36GB Raptors in a RAID0 stripe (Windows is here, first
> disk in BIOS), and a single 200GB SATA drive in a 'fake' array, ie a single
> disk JBOD array. I do have to define the disk as some sort of array to have
> it be accessible in Windows.
> **less**
> My problem is this: My linux install is on the single disk, and I can't
> start dmraid there. It detects the metadata on the single disk 'array' and
> wants to activate it, but it can't since Linux is already running from
> there.
> I searched the man page, the --help output, and the archives of this list
> back to last April, but haven't found any reference to anyone with a similar
> problem.
> **minimal**
> Ideally, I'd like to be able to tell dmraid 'dmraid -ay --except=/dev/sdc'
> and have it process everything *but* the device(s) specified.

Hmm, that falls into the category: does dmraid need a config file? ;)

Of course I can add a command line option to help this.
Will think about the syntax for positive/negative device lists to scan
during discovery.

Put on TODO list.

> Would it be possible to get a patch with this functionality, and/or have it
> added to the next rc?
> Thanks much in advance,
> Rich 'Forge' Mingin

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Heinz    -- The LVM Guy --

*** Software bugs are stupid.
    Nevertheless it needs not so stupid people to solve them ***


Heinz Mauelshagen                                 Red Hat GmbH
Consulting Development Engineer                   Am Sonnenhang 11
Storage Development                               56242 Marienrachdorf
Mauelshagen at                            PHONE +49  171 7803392
                                                  FAX   +49 2626 924446

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