Re: Versioning file system

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Tue, Jun 19, 2007 at 02:03:07PM -0400, Chris Snook wrote:
> I pointed out NetApp's .snapshot directories because that's a method that 
> uses legal path character, but doesn't break anything.  With this method, 
> userspace tools will have to be taught that : is suddenly a special 
> character.  Userspace already knows that files beginning with . are special 
> and treat them specially. We don't need a new special character for every 
>  new feature.  We've got one, and it's flexible enough to do what you want, 
> as proven by NetApp's extremely successful implementation.  Perhaps you 
> want a slightly different interface from what NetApp has implemented, but 
> what you're suggesting will change the default behavior of basic tools like 
> tar and ls.  This is not a good thing.

I think I used one of those systems once (or at least another one with
.snapshot feature).  It managed to completely avoid user space problems
by never actually showing .snapshot in directory listings, but you could
always cd to it or refer to it explicitly.  You never risked having tar
or find or anything else accidentally pick it up.  Very nice interface.

--
Len Sorensen
-
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[Index of Archives]     [Linux Ext4 Filesystem]     [Union Filesystem]     [Filesystem Testing]     [Ceph Users]     [Ecryptfs]     [AutoFS]     [Kernel Newbies]     [Share Photos]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux Cachefs]     [Reiser Filesystem]     [Linux RAID]     [Samba]     [Device Mapper]     [CEPH Development]
  Powered by Linux