Date: Sun, 11 Sep 2016 13:49:13 +0300 From: Russian <russian@russerver.org> To: freebsd-questions@freebsd.org Subject: df report wrong free space on NFSv4 share Message-ID: <7504fda0-79ed-d2a2-357c-5f6e691295fd@russerver.org>
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Hi all. After migrating to NFSv4 (from NFSv3) i found that df on client shows wrong free space: root@server:~ # df -hT Filesystem Type Size Used Avail Capacity Mounted on /dev/mirror/gm0p2 ufs 39G 3.8G 32G 11% / devfs devfs 1.0K 1.0K 0B 100% /dev /dev/mirror/gm1p1 ufs 1.8T 1.6T 1.6G 100% /usr/local/data root@client:~ # df -hT Filesystem Type Size Used Avail Capacity Mounted on /dev/ada0p2 ufs 7.3G 4.5G 2.3G 66% / devfs devfs 1.0K 1.0K 0B 100% /dev server:/ nfs 1.8T 1.6T 146G 92% /mnt Difference is exactly 8% (looks like nfs don't respect ufs minfree) Is it a bug? or it's me doing something wrong? Server: root@server:~ # uname -a FreeBSD server 10.3-RELEASE-p7 FreeBSD 10.3-RELEASE-p7 #0: Thu Aug 11 18:38:15 UTC 2016 root@amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC amd64 root@server:~ # less /etc/exports /usr/local/data -mapall=user client V4:/usr/local/data client root@storage:~ # less /etc/rc.conf rpcbind_enable="YES" nfs_server_enable="YES" nfsv4_server_enable="YES" nfsuserd_enable="YES" Client: root@client:~ # uname -a FreeBSD client 10.3-RELEASE-p7 FreeBSD 10.3-RELEASE-p7 #0: Thu Aug 11 18:38:15 UTC 2016 root@amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC amd64 root@client:~ # less ./fstab # Device Mountpoint FStype Options Dump Pass# /dev/ada0p2 / ufs rw 1 1 /dev/ada0p3 none swap sw 0 0 server:/ /mnt nfs rw,bg,tcp,intr,nfsv4 0 0 root@client:~ # less /etc/rc.conf nfs_client_enable="YES" nfsuserd_enable="YES" nfscbd_enable="YES"
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