On Mon, Aug 22, 2011 at 05:07:45PM -0400, Jim Maloney wrote: > I have been experimenting exporting btrfs subvolumes over nfs. Main > subvolume is filesys1 mounted at /filesys1. Below this is subvolume > base, user1 is in base and documents is in user1. documents is > mounted at /documents. /etc/exports is: > /filesys1/base/user1 172.16.0.0/24(rw,no_acl,no_root_squash,fsid=0) > /filesys1/user1-snapshot 172.16.0.0/24(rw,no_acl,no_root_squash,fsid=0) > /documents 172.16.0.0/24(rw,no_acl,no_root_squash,fsid=0) I think you need to specify a different fsid for each export. That's what I've got here, and it seems to work. Hugo. > > On the client machine I mount user1 as /mnt/user and all data from > user is present. > I can also umount /mnt/usr and mount /documents as /mnt/documents and > all data is present. > However, if I mount user1 as /mnt/user and then mount /documents as > /mnt/documents > the data from the last subvolume mounted shows in both mounts. Mount > also shows: > 172.16.0.28:/documents/ on /mnt/user type nfs > (rw,relatime,vers=3,rsize=262144,wsize=262144,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=172.16.0.28,mountvers=3,mountport=892,mountproto=udp,local_lock=none,addr=172.16.0.28) > 172.16.0.28:/documents/ on /mnt/documents type nfs > (rw,relatime,vers=3,rsize=262144,wsize=262144,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=172.16.0.28,mountvers=3,mountport=892,mountproto=udp,local_lock=none,addr=172.16.0.28) > > The initial mount of user1 on /mnt/user showed correctly in mount. > Mount changes when I add the mount for /documents. > I don't know how to troubleshoot this. I am happy to provide any info > which can help. > Btrfs is currently on a centOS6 machine running kernel 3.0.1 with > btrfs-progs from git unstable. > NFS is v3 on both server and client and the client is Fedora 15 kernel > 2.6.40-4.fc15.x86_64 > Thanks > Jim Maloney > > -- === Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk === PGP key: 515C238D from wwwkeys.eu.pgp.net or http://www.carfax.org.uk --- Someone's been throwing dead sheep down my Fun Well ---
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