[blfs-dev] New page
zarniwhoop at ntlworld.com
Thu Feb 9 05:19:35 PST 2012
On Wed, Feb 08, 2012 at 11:12:11PM -0600, Bruce Dubbs wrote:
> Ken Moffat wrote:
> > What surprised me is that /etc/mdadm.conf isn't mentioned. I
> > thought I had to create this (either manually, or by running some
> > command - I forget which), and without it the kernel cannot assemble
> > the array(s) ?
> It's optional. There are ways to monitor an array using mdmon, but I
> haven't used it. If the partition types are RAID Auto (fd), then the
> kernel will read the metadata from partitions without the .conf file
> (format 0.9 only). I think the .conf file is only needed if the
> partition is not marked or advanced features are desired.
Yes, I went for a newer format. I assumed that anyone else creating
a new array would also use the current format.
> When I look at the mdadm man page, it is 1766 lines long. One thing I
> see there is:
> echo 'DEVICE /dev/hd*[0-9] /dev/sd*[0-9]' > mdadm.conf
> mdadm --detail --scan >> mdadm.conf
> This will create a prototype config file that describes currently
> active arrays that are known to be made from partitions of IDE or SCSI
> drives. This file should be reviewed before being used as it may
> contain unwanted detail.
> -- Bruce
Those were the commands I used. The 'scan' rang a bell.
das eine Mal als Tragödie, das andere Mal als Farce
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