Re: Questions about software RAID

[David Greaves <david@dgreaves.com>]

Hervé Eychenne wrote:
> On Tue, Apr 19, 2005 at 01:00:11PM +0200, bernd@rhm.de wrote:
>>First you have to look if there are partitions on that disk to which no
>>data was written since the disk failed (this typically concerns the swap
>>partition). These partitions have to be marked faulty by hand using mdadm -f
>>before you can remove them with mdadm -r.
> 
> 
> Ok, but how do you automate/simplify that?

EVMS?
Or some other enterprise volume manager


> 
> A script with a while loop and some grep,sed commands? A grep on what
> exactly? (this kind of precise information seems to be written nowhere in
> the manpage of the HOWTOs)
You're talking about specific configs - not all sysadmins will want to 
do this.
And those who do can type:
   fdisk -l /dev/sda | grep -i fd | cut -f1 -d' ' | xargs -n1 mdadm -r

> Wouldn't it be much simpler if it could be possible to do something
> like the following?
> # mdadm --remove-disk /dev/sda
> So this command could mark as faulty and remove of the array any
> implied partition(s) of the disk to be removed.

see above 1 liner...

David

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