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Date: Fri, 09 Apr 2010 13:54:55 -0700
From: "Christopher J. Morrone" <morrone2@llnl.gov>
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To: Dan <dan@nerp.net>
CC: "lustre-discuss@lists.lustre.org" <lustre-discuss@lists.lustre.org>
Subject: Re: [Lustre-discuss] Unable to activate inactive OSTs
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Dan wrote:
> Hi,
> 
> Recently 3 OSTs started showing up as IN when lctl dl is run.  I cannot get the to activate and indicate UP, no data is being written to them but we can read from them.
> 
> I've tried lctl conf_param as well as the lctl --device 9 activate method.  How else can I activate these? Hopefuly it's straight forward as all other OSTs are at 99%!
> 
> Thanks,
> 
> Dan

What errors do you see on the console of the MDS?

Did you change anything recently, like upgrade from 1.6 to 1.8?