On Wed, 2010-05-26 at 09:26 -0400, Scott wrote: > Hi, Hi,
You don't provide any particulars (lustre version, lfs df output, etc.) so I will answer generically... > I am not using striping. Question, when creating a new file does Lustre try > to write to the OST > with the most free space? That depends on your lustre version and the values in /proc/fs/lustre/lov/client-clilov-f385fc00/qos_*. Please see the manual for details on those files and how they affect object allocation, if you are running a relevant version of Lustre. > Second question, if for whatever reason it picks the OST with 200Gb free and > i was writing a file > that would be 500Gb at finish, what would happen when that particular OST ran > out of space? The client gets an ENOSPC. > Would > it leave the file as incomplete and show no free space? If the client application doesn't do any cleanup on getting an error, yes. b.
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