Is this still true if the source and target fileset are both in the same storage pool? It seems like they could just move the metadata… Especially in the case of dependent filesets where the metadata is actually in the same allocation area for both the source and target.
Maybe this just doesn’t happen often enough to optimize? -- Stephen > On Apr 16, 2020, at 12:50 PM, Oesterlin, Robert <[email protected]> > wrote: > > Moving data between filesets is like moving files between file systems. > Normally when you move files between directories, it’s simple metadata, but > with filesets (dependent or independent) is a full copy and delete of the old > data. > > > Bob Oesterlin > Sr Principal Storage Engineer, Nuance > > > From: <[email protected] > <mailto:[email protected]>> on behalf of "J. Eric > Wonderley" <[email protected] <mailto:[email protected]>> > Reply-To: gpfsug main discussion list <[email protected] > <mailto:[email protected]>> > Date: Thursday, April 16, 2020 at 11:32 AM > To: gpfsug main discussion list <[email protected] > <mailto:[email protected]>> > Subject: [EXTERNAL] [gpfsug-discuss] gpfs filesets question > > I have filesets setup in a filesystem...looks like: > [root@cl005 ~]# mmlsfileset home -L > Filesets in file system 'home': > Name Id RootInode ParentId Created > InodeSpace MaxInodes AllocInodes Comment > root 0 3 -- Tue Jun 30 > 07:54:09 2015 0 402653184 320946176 root fileset > hess 1 543733376 0 Tue Jun 13 > 14:56:13 2017 0 0 0 > predictHPC 2 1171116 0 Thu Jan 5 > 15:16:56 2017 0 0 0 > HYCCSIM 3 544258049 0 Wed Jun 14 > 10:00:41 2017 0 0 0 > socialdet 4 544258050 0 Wed Jun 14 > 10:01:02 2017 0 0 0 > arc 5 1171073 0 Thu Jan 5 > 15:07:09 2017 0 0 0 > arcadm 6 1171074 0 Thu Jan 5 > 15:07:10 2017 0 0 0 > > I beleive these are dependent filesets. Dependent on the root fileset. > Anyhow a user wants to move a large amount of data from one fileset to > another. Would this be a metadata only operation? He has attempted to > small amount of data and has noticed some thrasing. > _______________________________________________ > gpfsug-discuss mailing list > gpfsug-discuss at spectrumscale.org <http://spectrumscale.org/> > http://gpfsug.org/mailman/listinfo/gpfsug-discuss > <http://gpfsug.org/mailman/listinfo/gpfsug-discuss>
_______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at spectrumscale.org http://gpfsug.org/mailman/listinfo/gpfsug-discuss
