Lustre discuss - Jun 2007 - MDT full?

I thought I had this written down someplace, but now can''t find it:  Is
there
a definitive way to tell whether an MDT is full?  Alternatively, a particular
OST? 

What''s driving this is I''m trying to build some semi-automated
tools to
diagnose the dreaded "no space left on device" error.

TIA...

On Friday 08 June 2007 15:37:00 John R. Dunning wrote:
> I thought I had this written down someplace, but now can''t find
it:  Is
> there a definitive way to tell whether an MDT is full?  Alternatively, a
> particular OST?
>
> What''s driving this is I''m trying to build some
semi-automated tools to
> diagnose the dreaded "no space left on device" error.
lfs df


bschubert@beo-102 ~>lfs df -h
UUID                     bytes      Used Available  Use% Mounted on
mds-beo_UUID             59.9G      3.9G     56.1G    6% /data/l[MDT:0]
ost1_UUID               831.3G    139.5G    691.8G   16% /data/l[OST:0]
ost2_UUID               554.2G    106.6G    447.6G   19% /data/l[OST:1]

filesystem summary:       1.4T    246.1G      1.1T   17% /data/l


-- 
Bernd Schubert
Q-Leap Networks GmbH

On Jun 08, 2007  15:40 +0200, Bernd Schubert wrote:
> On Friday 08 June 2007 15:37:00 John R. Dunning wrote:
> > I thought I had this written down someplace, but now can''t
find it:  Is
> > there a definitive way to tell whether an MDT is full?  Alternatively,
a
> > particular OST?
> >
> > What''s driving this is I''m trying to build some
semi-automated tools to
> > diagnose the dreaded "no space left on device" error.
> 
> lfs df
> 
> 
> bschubert@beo-102 ~>lfs df -h
> UUID                     bytes      Used Available  Use% Mounted on
> mds-beo_UUID             59.9G      3.9G     56.1G    6% /data/l[MDT:0]
> ost1_UUID               831.3G    139.5G    691.8G   16% /data/l[OST:0]
> ost2_UUID               554.2G    106.6G    447.6G   19% /data/l[OST:1]
> 
> filesystem summary:       1.4T    246.1G      1.1T   17% /data/l
Also "lfs df -i" to report inode usage:

lfs df -i
UUID                    Inodes     IUsed     IFree IUse% Mounted on
mds-myth-0_UUID        2211688     42040   2169648    1% /myth[MDT:0]
ost-myth-0_UUID         737280     12219    725061    1% /myth[OST:0]
ost-myth-1_UUID         737280     12269    725011    1% /myth[OST:1]
ost-myth-2_UUID         737280     12256    725024    1% /myth[OST:2]

filesystem summary:    2211688     42040   2169648    1% /myth

Cheers, Andreas
--
Andreas Dilger
Principal Software Engineer
Cluster File Systems, Inc.