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Re: mdadm on lenny64, why two spares?

On Thu, 11 Jun 2009 00:23 +0200, "martin f krafft" <madduck@debian.org>
> also sprach whollygoat@letterboxes.org <whollygoat@letterboxes.org>
> [2009.06.10.2308 +0200]:
> > So, if I understand correctly, in the Lenny version of mdadm 
> > (I never experienced this building arrays with mdadm on Etch)
> > in order for the creation of an array to take place, one must 
> > run "mdadm -w <arrayx>" immediately after running "mdadm
> > -C <arrayx> -n y -x z etcetc" otherwise the new array will just sit 
> > there not syncing the component devices until the first write?
> Yes, this is a safety measure, since -C only writes the superblocks
> and then assembles the array as normal. This is postponed until
> a write operation takes place in case in case the admin needs to
> intervene.

I guess you need to be more of a power user than myself to imagine
a scenario requiring intervention.  But, I do understand what is
happening on my machine, now.  Thanks.


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