[CentOS] Suddenly increased my hard disk

[Rob Kampen]

On 04/22/2016 03:34 PM, Valeri Galtsev wrote:
> 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.
I usually put a file with a name like "mount point for /dev/mdxyz" into 
that mount point folder just in case I fail to mount it. Then when you 
do a ls or ll it shows me I have a problem.
> 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
> ++++++++++++++++++++++++++++++++++++++++
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