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
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