[gpfsug-discuss] Presentations from UG #6 - Feedback for IBM appreciated
Orlando Richards
orlando.richards at ed.ac.uk
Tue Sep 25 14:41:57 BST 2012
On 25/09/12 14:05, Jez Tucker wrote:
> Hello all
>
> Firstly can I thank all who attended UG #6. We had a great turn out and the opportunity to network with more people from IBM was most welcome.
>
> I have uploaded the presentations from UG to this small, catchy URL: http://goo.gl/n1in1
> [Bar the SCCS presentation, awaiting clearance].
>
> Please have a read of the presentations.
>
> IBM Almaden Labs welcome your feedback regarding pNFS and Panache as well as FRQs etc.
>
> For instance, one FRQ idea banded around was a GRIO/QoS implementation for GPFS : E.G.: http://goo.gl/zjkN8
> It would be most helpful if a couple of lines use-case was alongside each of these.
>
> If these are messaged back to the list for healthy debate or sent to me directly I'll put them on the UG website for Almaden Labs to peruse/discuss with us.
>
> Regards,
>
> Jez
>
> p.s. I'll also start to solicit previous presentations for UG < #5, so if you were a speaker, please get in touch.
> ---
Thanks for the great meeting Jez, and Claire et al at OCF.
On feature requests, I think one desirable feature request discussed at
the meeting was for "better" performance monitoring tools.
A quick think through the things on my plate which would be eased with
new/changed features in GPFS led me to this wishlist:
- ability to change the designated NSD servers for an NSD without
unmounting the filesystem everywhere
- expansion of the AFM toolchain, including the following to assist
with migration of data between filesystems:
- ability to set a pre-existing fileset as a "cache" of an empty
'home' fileset with AFM, allowing for a push of the data from the
"cache" fileset/filesystem to the "home" target fileset/filesystem as a
data migration strategy
- ability to remove an AFM relationship between filesets, preserving
data in the 'cache' fileset (and making it, independently, a 'live' fileset)
- ability to "flip" the 'home'<->'cache' relationship, resulting in
a flush from the new 'cache' fileset to the new 'home' fileset
- better documentation (and, indeed, automation/automagic) on making
best use of available memory within NSD servers
- read caching of data blocks within an NSD server's memory (when
acting in "server" mode in a multi-cluster environment where the client
nodes do not have direct block access to the disks)
- "hot file" identification tools/data for policy based HSM migration
- some easy and non-invasive method for logging file and folder
deletions (for the purposes of expiring backup data without using a
separate database of files, in my case)
- better licensing model (dare I say it - capacity based?)
I'd love to be able to change the blocksize on an existing filesystem
too, but I imagine that's not possible.
--
Orlando
--
--
Dr Orlando Richards
Information Services
IT Infrastructure Division
Unix Section
Tel: 0131 650 4994
The University of Edinburgh is a charitable body, registered in
Scotland, with registration number SC005336.
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