Re: Linux RAID version question

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On 11/26/06, Nix <nix@xxxxxxxxxxxxx> wrote:
On 25 Nov 2006, Dragan Marinkovic stated:
> Hm, I was playing with RAID 5 with one spare (3 + 1) and metadata
> version 1.2 . If I let it build to some 10% and cleanly reboot it does
> not start where it left off -- basically it starts from scratch. I was
> under the impression that RAID with metadata version 1.x exhibits
> different behavior with kernel 2.6.18 . I'm staring the array as:
>
>        /sbin/mdadm --assemble --scan -e 1.2 --no-degraded
> --config=/etc/mdadm.conf
>
> On another topic, I looked through the code trying to find if metadata
> version can be stored as a default in conf file. Unfortunately, there
> is no such option. It would be nice to have it so you don't have to
> specify it when assembling the array.

Well, I assemble my arrays with the command

    /sbin/mdadm --assemble --scan --auto=md

and mdadm.conf looks like

DEVICE partitions
ARRAY /dev/md0 UUID=3a51b74f:8a759fe7:8520304c:3adbceb1
ARRAY /dev/md1 UUID=a5a6cad4:2c7fdc07:88a409b9:192ed3bf
ARRAY /dev/md2 UUID=fe44916d:a1098576:8007fb81:2ee33b5a

MAILADDR postmaster@xxxxxxxxxxxxx


No metadata versions needed anywhere.

--
`The main high-level difference between Emacs and (say) UNIX, Windows,
 or BeOS... is that Emacs boots quicker.' --- PdS

But you do have to specify the version (other than 0.90) when you want
to build the array for the first time, correct?
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