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Re: [Linux-cluster] Unformatting a GFS cluster disk



On Wed, 2008-03-26 at 13:58 -0700, Lombard, David N wrote:
...
> > Can you point me at any docs that describe how best to implement snaps
> > against a gfs lun?
> 
> FYI, the NetApp "snapshot" capability is a result of their "WAFL" filesystem
> <http://www.google.com/search?q=netapp+wafl>.  Basically, they use a
> copy-on-write mechanism that naturally maintains older versions of disk blocks.
> 
> A fun feature is that the multiple snapshots of a file have the identical
> inode value
> 

fun as in 'May you live to see interesting times' kinda fun? Or really
fun?

;)


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