On Thu, April 21, 2016 10:23 pm, John R Pierce wrote:
On 4/21/2016 7:49 PM, Chandran Manikandan wrote:
Finally fixed my issue. As you told i have unmount the external hard disk then i checked the /bkhdd/backup folder. I saw that 190GB backup tar.gz file then i deleted and again remount it.
Thanks a lot for your kind supporting to me to fix this issue.
Why it's happened like this environment and how to avoid it.
don't write to mount points when they aren't mounted, the files get written to the file system. and don't create any directories in the mount point... like, if you were mounting /dev/sdb1 as /bkhdd then on the root file ssytem (without that mount) there should never have been any /bkhdd/backup directory. in fact /bkhdd should not be writable by your user processes.
John, thanks for reminding this to all of us, I for one keep forgetting about it (at least if I'm not dealing with it myself which usually acts as a federal offense on me ;-) I know one Linux admin who removes write bit from mount points.
Valeri
I remember older Unix systems would refuse to mount a file system to a non-empty directory, for exactly this reason, it hides stuff thats already there.
-- john r pierce, recycling bits in santa cruz
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++++++++++++++++++++++++++++++++++++++++ Valeri Galtsev Sr System Administrator Department of Astronomy and Astrophysics Kavli Institute for Cosmological Physics University of Chicago Phone: 773-702-4247 ++++++++++++++++++++++++++++++++++++++++