[gpfsug-discuss] IBM Spectrum Scale transparent cloud tiering

[Vic Cornell]

Simon is right - we are using DMAPI to tier off to WOS our object store and to StrongBox NAS-fronted tape.

We are very interested in the new “lightweight” protocols as they may allow us to do stuff that DMAPI makes hard - like tiering off to more than one DMAPI service from a single filesystem.

If the interface is S3 then it would open the doors to tiering off to any on-prem “cloud” solution that supports S3 sufficiently well ( ours does ;-)  ) 

Cheers,

Vic

> On 29 Jan 2016, at 15:15, Simon Thompson (Research Computing - IT Services) <S.J.Thompson at bham.ac.uk> wrote:
> 
> 
>> Er no the DMAPI was only ever required for HSM as far as I am aware. Now
>> while HSM is a form of tiering, in GPFS parlance tiering generally
>> referred to disk pools of varying "speeds", with file placement and
>> movement being done via the policy engine.
> 
> DMAPI can do more than just HSM though. I think DDN WOS bridge uses it
> (Vic or someone can correct me here). And LWE could *potentially* do some
> of those other aspects that people might want to do.
> 
>> I still remain to be convinced that tiering to some third party cloud
>> provider will ever be cost effective mind you.
> 
> Amazon Glacier maybe? Possibly if you have data you really donąt want to
> touch...
> 
> Now my understanding though is that its an S3 (probably) interface, so it
> needn't be third party, nor public cloud storage necessarily.
> 
> Of course MCStore is hopefully on the list for the next Meet the Devs in
> Oxford (just a few places left), and on my list to get on the agenda for
> the May UG meeting as well.
> 
> Simon
> 
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