[CentOS] "Overlay" Filesystem Mounts?

Tue Nov 15 18:39:48 UTC 2011
Roger K. Wells <ROGER.K.WELLS at saic.com>

On 11/15/2011 01:05 PM, Ljubomir Ljubojevic wrote:
> Vreme: 11/15/2011 06:39 PM, John Hodrien piše:
>> On Tue, 15 Nov 2011, Tim Nelson wrote:
>>
>>> ----- Original Message -----
>>>> On Tue, 15 Nov 2011, Tim Nelson wrote:
>>>>
>>>>> I'm already doing this. It "works", but is quite messy. I had hoped
>>>>> there
>>>>> would be an actual filesystem merging function that would do this
>>>>> automagically.
>>>> Presumably it's be easy enough to knock up with fuse, but there'd be a
>>>> small
>>>> performance hit compared to the symlink approach.
>>> A small loss of performance would be acceptable.
>>>
>>>> Why are you wanting to do this out of interest? Are you merging
>>>> filesystems
>>>> from multiple servers?
>>> Yes, multiple exports on multiple servers. The data is read by a legacy
>>> application that does not have a concept of 'multiple data locations' in
>>> which to read data from. :-/
>> Anything of interest here?
>>
>> http://en.wikipedia.org/wiki/UnionFS
>>
>> jh
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>>
>>
> Yup, that should be it.
>
> Available Packages
> funionfs.x86_64      0.4.3-6.el6        epel
> fuse-unionfs.x86_64  0.23-1.el6.rf      repoforge
>
> Repoforge built variant seams better, but do not hold me for it.
>
how about mhddfs?

$ yum search unionFS
funionfs-debuginfo.x86_64 : Debug information for package funionfs
funionfs.x86_64 : Union filesystem in userspace
mhddfs.x86_64 : Fuse-based file system for unifying several mount points 
into
                              : one

-- 
Roger Wells, P.E.
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