[lug] JBOD File Browser?

[Paul E Condon]

The -s option in cp allows one to copy a whole file structure to
another disk, except that files in the copy are represented by
symlinks to the original structure. This could be used to create a
merge structure of symlinks wherever you wish. The two (or more)
independent disks are not co-mingled. Creation of the merged structure
of symlinks is very fast. Use the -u option, or not, to control which
source disk is used in case of a name/date collision. Or add your own
collision handling logic.

HTH


On 20110916_125500, Will wrote:
> Lori,
> 
>   JBOD is an acronym for Just a Bunch of Disks and is not a technology or
> software package in and of its self.  I am not sure what your asking when
> you ask if JBOD can span multiple disks as well?
> 
>   As for the simplicity that you are afforded by keeping files from spanning
> disks if your file system spans multiple disks either by concatenation or
> stripping you still loose the entire file system if you loose a disk
> regardless of if files span disks or not.
> 
> On Fri, Sep 16, 2011 at 12:33 PM, Lori Reed <lorireed at lightning-rose.com>wrote:
> 
> > On 09/16/2011 12:07 PM, Will wrote:
> >
> > > LVM can concatenate two drives into one file system but will not keep a
> > > file from spanning the two drives.
> >
> > Thanks for that info. I thought that was the case, but couldn't find any
> > documentation that said so. Do you know if that's also true of JBOD?
> >
> >  > Why do you want the two drives to be
> > > treated as one spanned entity but keep files from being able to span the
> > > two?
> >
> > I knew someone would bite. Because that's what I want it to do. :)
> >
> > If files don't span drives, then each single drive is still simply that
> > - a single drive, with all the simplicity that implies.
> >
> > And since 1.n TB drives are both cheap and readily available, and the
> > biggest files I generally deal with at home are 4.n GB, by the time I
> > have less than 4 GB on any single drive it's time to expand.
> >
> >
> > > On Fri, Sep 16, 2011 at 11:58 AM, Lori Reed <lorireed at lightning-rose.com
> > > <mailto:lorireed at lightning-rose.com>> wrote:
> > >
> > >     Has anyone run across a file browser that could treat two or more
> > drives
> > >     (mount points, actually) as a single entity similar to JBOD but
> > >     guaranteeing that no single file will ever span drives?
> > >
> > >     Or how about software that would allow two or more external drives to
> > be
> > >     mounted with a single mount point in a JBOD fashion?
> > >
> > >     Either nothing like that currently exists, or my Google-Fu has failed
> > >     completely.
> > >
> > >     I have need of and am considering writing such a file browser, but
> > I'm
> > >     not sure I'm all that ambitious at the moment.
> > >
> > >     Lori
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-- 
Paul E Condon           
pecondon at mesanetworks.net