On our build 147 server (pool version 22) I''ve noticed that some directories called ".$EXTEND" (no quotes) are appearing underneath some shared NFS filesystems, containing an empty file called "$QUOTA". We aren''t using quotas. What are these ? Googling for the names doesn''t really work too well :-( I don''t think they''re doing any harm, but I''m curious. Someone''s bound to notice and ask me as well :-) Cheers, Chris
> On our build 147 server (pool version 22) I''ve noticed that some directories called ".$EXTEND" (no quotes) are appearing underneath some shared NFS filesystems, containing an empty file called "$QUOTA". We aren''t using quotas. > > What are these ? Googling for the names doesn''t really work too well :-( > > I don''t think they''re doing any harm, but I''m curious. Someone''s bound to > notice and ask me as well :-)Well, googling for ''.$EXTEND'' and ''$QUOTA'' does give some results, especially when combined with ''NTFS''. :-) Check out the table on "Metafiles" here: http://en.wikipedia.org/wiki/NTFS Regards -- Volker -- ------------------------------------------------------------------------ Volker A. Brandt Consulting and Support for Oracle Solaris Brandt & Brandt Computer GmbH WWW: http://www.bb-c.de/ Am Wiesenpfad 6, 53340 Meckenheim Email: vab at bb-c.de Handelsregister: Amtsgericht Bonn, HRB 10513 Schuhgr??e: 46 Gesch?ftsf?hrer: Rainer J. H. Brandt und Volker A. Brandt
On 3 Jan 2011, at 17:08, Volker A. Brandt wrote:>> On our build 147 server (pool version 22) I''ve noticed that some directories called ".$EXTEND" (no quotes) are appearing underneath some shared NFS filesystems, containing an empty file called "$QUOTA". We aren''t using quotas. >> >> What are these ? Googling for the names doesn''t really work too well :-( >> >> I don''t think they''re doing any harm, but I''m curious. Someone''s bound to >> notice and ask me as well :-) > > Well, googling for ''.$EXTEND'' and ''$QUOTA'' does give some results, > especially when combined with ''NTFS''. :-)Aha! Foolishly I''d used zfs in my search string :-)> Check out the table on "Metafiles" here: > > http://en.wikipedia.org/wiki/NTFSOK, so they''re probably an artefact of having set sharesmb=on, even though I''ve not joined the box to a domain yet. Cheers, Chris
On 1/3/11 10:51 AM, Chris Ridd wrote:> > On 3 Jan 2011, at 17:08, Volker A. Brandt wrote: > >>> On our build 147 server (pool version 22) I''ve noticed that some directories called ".$EXTEND" (no quotes) are appearing underneath some shared NFS filesystems, containing an empty file called "$QUOTA". We aren''t using quotas. >>> >>> What are these ? Googling for the names doesn''t really work too well :-( >>> >>> I don''t think they''re doing any harm, but I''m curious. Someone''s bound to >>> notice and ask me as well :-) >> >> Well, googling for ''.$EXTEND'' and ''$QUOTA'' does give some results, >> especially when combined with ''NTFS''. :-) > > Aha! Foolishly I''d used zfs in my search string :-) > >> Check out the table on "Metafiles" here: >> >> http://en.wikipedia.org/wiki/NTFS > > OK, so they''re probably an artefact of having set sharesmb=on, even though I''ve not joined the box to a domain yet.Those objects are created automatically when you share a dataset over SMB to support remote ZFS user/group quota management from the Windows desktop. The dot in .$EXTEND is to make the directory less intrusive on Solaris. There is no Solaris or ZFS functionality associated with those objects and you can safely delete them on ZFS: they will be recreated as required whenever the dataset is shared over SMB. For more information on those files, look for Quota Tracking in http://msdn.microsoft.com/en-us/library/ms995846.aspx Alan
Le 04/01/2011 08:24, Alan Wright a ?crit :> Those objects are created automatically when you share a dataset > over SMB to support remote ZFS user/group quota management from > the Windows desktop. The dot in .$EXTEND is to make the directory > less intrusive on Solaris. > > There is no Solaris or ZFS functionality associated with those > objects and you can safely delete them on ZFS: they will be > recreated as required whenever the dataset is shared over SMB.I, for one, do not do that. When a ZFS box is used as a SMB file server for a Windows system, that system gets access to snapshots (perhaps created by Time Slider), which allows one to retrieve previous versions of files or directories, exactly as is the case on the Solaris box. I use it for "versioning" in Delphi development. Very handy indeed. I first read about that feature in "Building an OpenSolaris Server: A Better CIFS Server than Windows?" at http://www.slepicka.net/?p=37 -- ?ditions de l''?ge d''Or ? Stanley G. Weinbaum http://www.lulu.com/robert_soubie