[gpfsug-discuss] Tracking deleted files

[Sven Oehme]

a couple of years ago tridge demonstrated things you can do with DMAPI
interface and even delivered some non supported example code to demonstrate
it :

https://www.samba.org/~tridge/hacksm/

keep in mind that the DMAPI interface has some severe limitations in terms
of scaling, it can only run on one node and can have only one subscriber.

we are working on a more scalable and supported solution to accomplish what
is asks for (track operations, not just delete) , stay tuned in one of the
next user group meetings where i will present  (Germany and/or London).

Sven


On Mon, Feb 27, 2017 at 5:25 AM Jonathan Buzzard <jonathan at buzzard.me.uk>
wrote:

> On Mon, 2017-02-27 at 12:39 +0000, Simon Thompson (Research Computing -
> IT Services) wrote:
> > Yeah but that uses snapshots, which is pretty heavy-weight for what I
> > want to do, particularly given mmbackup seems to have a way of
> > tracking deletes...
> >
>
> It has been discussed in the past, but the way to track stuff is to
> enable HSM and then hook into the DSMAPI. That way you can see all the
> file creates and deletes "live".
>
> I can't however find a reference to it now. I have a feeling it was in
> the IBM GPFS forum however.
>
> It would however require you to get your hands dirty writing code.
>
> JAB.
>
> --
> Jonathan A. Buzzard                 Email: jonathan (at) buzzard.me.uk
> Fife, United Kingdom.
>
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