Re: raidframe with R5/RS not reconstructing?

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Sun, Feb 12, 2012 at 12:35:32PM -0600, John D. Baker wrote:
> On Sun, 12 Feb 2012, Manuel Bouyer wrote:
> 
> >On Sun, Feb 12, 2012 at 06:50:52AM -0600, John D. Baker wrote:
> >>
> >>But it doesn't.  It immediately reports 12% completion and sits there
> >>(almost 9 hours now) with no apparent progress and no ETA computed (00:00).
> 
> >Did you check with 'systat vm' 'vmstat -x' if there's activity on
> >the affected disk, or if the reconstruction is really stalled ?
> 
> Not quite sure what you mean with the whole command suggestion.
> I didn't see any "-x" option to either 'vmstat' or 'systat'.

sorry, I meant iostat -x

> 
> Running 'systat vm' shows the affected unit to be idle.  This is my
> own file server and is thus lightly loaded--the system disk has
> more activity than the RAID right now.  Forcing some activity on the
> RAID ('ls -R' from an NFS client system), the affected unit is sometimes
> idle, or indicates a constant:
> 
>    wd8           9  115K   1.6
> 
> over mutiple sampling periods (the %busy may fluctuate a bit).
> Other units are more dynamic.  A couple of typical snapshots:
> 
> Disks: seeks xfers bytes %busy
>    wd0          24  192K   3.3
>    wd1          30  223K   5.9
>    wd2          33  212K   4.3
>    wd3          26  199K   4.1
>    wd4           2   15K
>    wd5          44  368K   6.3
>    wd6          39  281K   5.5
>    wd7          46  327K   9.3
>    wd8           9  115K   0.2
>  raid0         102  644K  25.2
>    dk0         102  644K  25.2
> 
> Disks: seeks xfers bytes %busy
>    wd0          28   93K   2.0
>    wd1          23   80K   1.6
>    wd2          23   91K   2.8
>    wd3          28   86K   2.8
>    wd4           4   23K   0.2
>    wd5          19   66K   1.8
>    wd6          28   92K   2.2
>    wd7          25   70K   1.0
>    wd8
>  raid0         106  364K  10.0
>    dk0         106  364K  10.0

The activity shouldn't prevent reconstruction progress I think.

Sorry, I've no more idea ...

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--