Re: Software RAID level 1 issue

[Paul Clements <Paul.Clements@SteelEye.com>]

"Robert L. Harris" wrote:
> 
> The problem I see and I believe I've had is when the box starts to boot
> up the system hangs durring the init script runs (pre-runlevel 3).  At
> these times my system is busy hammering my raid arrays and will finally
> continue on to run level 3 once things are synced up.

Hmm, could it be fsck on a busily resyncing array? It must be something
in the initscripts that is causing this...the driver's raidstart command
will return and give you access to the device before (while) the resync
begins... 

Is this on Red Hat?

--
Paul

> Thus spake Stef Telford (stef@chronozon.artofdns.com):
> 
> > Paul Clements wrote:
> > > Stef Telford wrote:
> > >
> > > [snip]
> > >
> > > > during resync's on raid-1 the mirror will not be available.
> > >
> > > I'm not sure I understand this. md/raid1 devices are accessible while
> > > resync is occurring...albeit with lower I/O throughput since the resync
> > > is consuming bandwidth.
> > >
> >
> > The way i read the original posters question was
> > that he/she was trying to restart the faulted
> > 'device', or rather was trying to re-activate the
> > broken md device whilst the working copy was trying to
> > rebuild it. accessing the working copy should work, but
> > not the broken md (unless i have seriously misread
> > someplace :). Under raid5 or raid10, you can still
> > access the broken md during a resync/rebuild, this
> > was what i thought the person was trying to do.
> >
> > apologies if i misunderstood the original phrasing :)
> >
> > regards
> > Stef Telford <stef@chronozon.artofdns.com>
> >
> > -
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> 
> :wq!
> ---------------------------------------------------------------------------
> Robert L. Harris                     | GPG Key ID: E344DA3B
>                                          @ x-hkp://pgp.mit.edu
> DISCLAIMER:
>       These are MY OPINIONS ALONE.  I speak for no-one else.
> 
> Diagnosis: witzelsucht
> 
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