[OpenAFS] Undelete support feedback request
Thu, 07 Dec 2006 20:48:21 -0500
I second Rodney's suggestion. Disclaimer: his office is next to mine ;)
Being able to have snapshots of a volume or multiple backups of a volume
from different times.
I think the simplest approach would be to clone a volume and give a new
but predictable name like vol.backup1 or vol.b20061207
I don't have a specific need for this at the moment, but it's in my
"nice to have" category.
Rodney M Dyer wrote:
> I think it would be more interesting to pursue something like the
> "Shadow Volume Copy Services"...
> Yea I know, pie in the sky problems.
> Kidding aside, our upper management is really getting into the kinds
> of services provided by companies like Xythos:
> http://www.xythos.com/home/xythos/index.html The services Xythos
> provides make traditional file systems look "outdated". However this
> is junk to me because it's web based stuff.
> I'm just an old codger... Hey you kids, get off my lawn!
> At 02:21 PM 12/7/2006, Jeffrey Altman wrote:
>> Jeffrey Hutzelman wrote:
>> > On Thursday, December 07, 2006 01:34:50 PM -0500 Jeffrey Altman
>> > <email@example.com> wrote:
>> >> I would believe that what would be desired is a non-permanent delete
>> >> in the r/w volume in which the file/directory would be marked with
>> >> a new attribute that means deleted but not reclaimed.
>> >> Files/directories would be automatically reclaimed as they bump up
>> >> against their quota.
>> >> New RPCs would be required to support the undelete operations:
>> >> * purge all deleted but unclaimed files/dirs
>> >> * undelete the specified file/dir
>> >> * list files/dirs that can be undeleted
>> > Actually, we're only talking about files here. A directory can't be
>> > deleted in the first place unless it's empty, and the undelete
>> > for an empty directory is the same as the directory creation
>> A delete operation on a directory filled with files that have been
>> deleted but not yet reclaimed needs to be marked with the new attribute.
>> Otherwise, you lose the ability to undelete the files stored within it.
>> > Life gets interesting when multiple files with the same name have been
>> > deleted, but maybe you don't care about that (I would).
>> Not so interesting. The function to list the entries reports multiple
>> files with the same name.
>> > I suspect that the improvement over traditional backup volumes is
>> > relatively small, and while it would be a "cool" feature, I think
>> > are probably others on which the time would be better spent. Buy hey,
>> > it's your time, not mine...
>> I completely agree that there are many more important things for time
>> to be spent on that are causing users real problems and not just
>> Jeffrey Altman
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