I have been trying to stat a directory in my file share that got mounted from NFS Server  [which is VM Debian 8.11], After i've touched a file in the directory and read the directory content by ls ,the atime,mtime and ctime got modified ,So things went fine here,And then i did the same on my file share that mounted from physical machine [which is Debian 7.9], the atime of the directory remains the same though i have touched and lsed the directory. both of these file share were mounted by realtime,I wonder why does it happen. when I just ran mount on the physical machine[NFS SERVER] ,I could see most of its local files are mounted with noatimetmpfs on /run type tmpfs (rw,nosuid,noexec,relatime,size=26352140k,mode=755)/dev/sda2 on /lib/live/mount/medium type ext4 (rw,noatime,user_xattr,data=ordered)/dev/loop0 on /lib/live/mount/rootfs/filesystem.squashfs type squashfs (ro,noatime)tmpfs on /lib/live/mount/overlay type tmpfs (rw,relatime)tmpfs on /lib/live/mount/overlay type tmpfs (rw,noatime,mode=755)aufs on / type aufs (rw,noatime,si=b3e6ae3b999120a9,noxino)tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k)tmpfs on /run/shm type tmpfs (rw,nosuid,nodev,noexec,relatime,size=52704260k)/dev/sda2 on /var/lib/dsnet-config type ext4 (rw,noatime,user_xattr,data=ordered)/dev/sda2 on /var/log type ext4 (rw,noatime,user_xattr,data=ordered)/dev/sda2 on /var/spool/rsyslog type ext4 (rw,noatime,user_xattr,data=ordered)/dev/sda2 on /var/lib/dsnet-core type ext4 (rw,noatime,user_xattr,data=ordered)/dev/sda2 on /var/lib/dsnet-md type ext4 (rw,noatime,user_xattr,data=ordered)/dev/sda2 on /etc/corosync type ext4 (rw,noatime,user_xattr,data=ordered)/dev/sda2 on /var/lib/heartbeat type ext4 (rw,noatime,user_xattr,data=ordered)Ain't sure whether the above mounts has to deal with my problem , yet these are the only oddity I have been seeing between them.And one more question to ask if I give a NFS request like MKDIR() will this call take the time info from client or it does take it from the NFS SERVER
The atime of a NFS directory does not get updated
linux;debian;filesystems;mount;nfs