From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jim Subject: snapshots changed behavior Date: Fri, 21 Oct 2011 12:31:34 -0400 Message-ID: <4EA19E66.2020102@webstarts.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed To: linux-btrfs@vger.kernel.org Return-path: List-ID: Good afternoon btrfs list, about a month ago, when testing btrfs, I could create a snapshot with btrfs snap create and be able to drill down in the snapshot to find subvols and files below the snapshot level. I currently need to use btrfsctl -s to create snapshots and can no longer drill down through subvols in them. An example would be a file tree of /btrfs (subvol) /data (subvol) /sites (subvol) /0000 (directory) /files-in-dir. If I snapshot /btrfs/data I can open data and see /sites but can see nothing below /sites. However, if I snap /btrfs/data/sites I can drill down through all lower directories and files. In my past tests I was able to drill all the way down from the /btrfs/data snap. Also, in the past, a snap was definitely a sparse file and was able to easily be moved, moved back, remounted and used. Currently, the useful file /btrfs/data/sites contains 5GB of data and both shows and moves as 5GB of data, not like a sparse file. Am I misusing the filesystem, or improperly using the commands? Or have changes been made to the functionality which I missed? Sorry to take your time on such a simple matter, but I need to understand how to best use the filesystem. Thanks very much for your advice. Jim Maloney