[Lustre-discuss] non-consecutive OST ordering

Wang Yibin wang.yibin at oracle.com
Tue Nov 9 21:10:11 PST 2010


The error message indicates that the UUID of OST #35 does not match between the live filesystem and the ostdb file.
Is this ostdb obsolete?

在 2010-11-9,下午11:45, Christopher Walker 写道:

> 
> 
> For reasons that I can't recall, our OSTs are not in consecutive order 
> -- we have 35 OSTs, which are numbered consecutively from
> 0000-0021
> and then there's one last OST at
> 002a
> 
> When I try to run lfsck on this array, it works fine for the first 34 
> OSTs, but it can't seem to find the last OST db file:
> 
> lfsck: ost_idx 34: pass3 OK (680045 files total)
> lfsck: can't find file for ost_idx 35
> Files affected by missing ost info are : -
> lfsck: can't find file for ost_idx 36
> Files affected by missing ost info are : -
> lfsck: can't find file for ost_idx 37
> Files affected by missing ost info are : -
> lfsck: can't find file for ost_idx 38
> Files affected by missing ost info are : -
> lfsck: can't find file for ost_idx 39
> Files affected by missing ost info are : -
> lfsck: can't find file for ost_idx 40
> Files affected by missing ost info are : -
> lfsck: can't find file for ost_idx 41
> Files affected by missing ost info are : -
> lfsck: can't find file for ost_idx 42
> Files affected by missing ost info are : -
> /n/scratch/hernquist_lab/tcox/tests/SbSbhs_e_8/P-Gadget3.3.1/IdlSubfind/.svn/text-base/ReadSubhaloFromReshuffledSnapshot.pro.svn-base
> 
> and then lists all of the files that live on OST 002a.  This db file 
> definitely does exist -- it lives in the same directory as all of the 
> other db files, and e2fsck for this OST ran without problems.
> 
> Is there some way of forcing lfsck to recognize this OST db?  Or, 
> failing that, is it dangerous to run lfsck on the first 34 OSTs only?
> 
> We're using e2fsck 1.41.6.sun1 (30-May-2009)
> 
> Thanks very much!
> 
> Chris
> 
> 
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