FWIW, your total should be used+free+reserved There is normally a % set aside for root only This is changeable too. tune2fs -m 0 <device>
Brian Andrus ITACS/Research Computing Naval Postgraduate School Monterey, California voice: 831-656-6238 > -----Original Message----- > From: [email protected] [mailto:lustre-discuss- > [email protected]] On Behalf Of Verduzco, Benjamin P. > Sent: Monday, April 22, 2013 9:49 AM > To: Mohr Jr, Richard Frank (Rick Mohr) > Cc: [email protected] > Subject: Re: [Lustre-discuss] OST corruption? > > That's correct, the used and free don't equal the total. While there > is just about a 5% difference, I know the file system was reporting a more > reasonable 158 T used before the reboot. > > Despite the file system size oddness, it seems to be working, so we'll keep it > in service for now, but we're moving up our plans to replace our MDS and > have consistent versions of both Lustre and the OS across all hosts. > > > Thanks, > Ben > -----Original Message----- > From: Mohr Jr, Richard Frank (Rick Mohr) [mailto:[email protected]] > Sent: Wednesday, April 17, 2013 5:07 PM > To: Verduzco, Benjamin P. > Cc: <[email protected]> > Subject: Re: [Lustre-discuss] OST corruption? > > > On Apr 3, 2013, at 1:52 PM, "Verduzco, Benjamin P." > <[email protected]> wrote: > > > * When I brought the system up, it reported the used space > incorrectly (df -h shows 166T total, 150T used and 7.1 T free) > > When you say that the used space is being reported incorrectly, do you > mean that the sum of the used and free space does not match the total > space? Or do you have a reason to believe that 150 TB is not actually > used? If it is the former, then that could be explained by the fact > that ext file systems by default reserve 5% of the disk space for the > root user. > > -- > Rick Mohr > Senior HPC System Administrator > National Institute for Computational Sciences > http://www.nics.tennessee.edu > > > _______________________________________________ > Lustre-discuss mailing list > [email protected] > http://lists.lustre.org/mailman/listinfo/lustre-discuss _______________________________________________ Lustre-discuss mailing list [email protected] http://lists.lustre.org/mailman/listinfo/lustre-discuss
