Mount same ext3 filesystem in 2 places... at the same time

[William Muriithi]

2009/9/29 John Miles <jmiles242-Re5JQEeQqe8AvxtiuMwx3w at public.gmane.org>:
> I thought that must be the case.
>
> What exactly causes the corruption (out of curiosity, and only if you have a
> moment).

Think of it like a file. Now if you open the file with two editors,
both can not write as they would can never be sure what the other
editor is changing. File editors solve this being opening the file
read only should the file already be in use.

Filesystem however will allow you to change stuff should you insist on
setting it up this way. Most of the time nothing bad happen because
both mount point may not end up editing the same blocks. However,
should that happen - like on a busy server - you are bound to get
something you will not like



>
> JohnM
>
>
> On Tue, Sep 29, 2009 at 11:00 AM, William Muriithi
> <william.muriithi-Re5JQEeQqe8AvxtiuMwx3w at public.gmane.org> wrote:
>>
>> John
>> >
>> > Still being a #NIX newbie, thought I ought to pose the question:
>> >
>> > Can an ext3 filesystem be mounted in 2 places at the same time?
>> >
>> No, unless you want data corruption.
>>
>> Only cluster aware file system like gfs can safely be mounted in multiple
>> points
>>
>> > Thanks!
>> >
>> > JohnM
>> >
>> >
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