[gpfsug-discuss] Experiences with thinly-provisioned volumes?

Jonathan Buzzard jonathan at buzzard.me.uk
Tue Dec 22 23:46:21 GMT 2015


On 22/12/15 17:32, Oesterlin, Robert wrote:
> Can anyone provide experiences with storage devices that use thin
> provisioning? I’ve been testing a few on them and I run into problems
> with the storage device incorrectly reporting the usage allocation after
> the files are deleted. I see this reference in the GPFS FAQ, but I’m
> looking for some real-world experiences.
>
> Most flash devices use thin provisioning internally.
>

What is the usage case of using thin provisioning on a GPFS file system? 
I just can't think of why it would ever be needed or for that matter a 
good idea. I would personally file it under crazy ideas never to 
implement in a production system.

Surely you throw everything into the GPFS file system and then 
overcommit on your quotas. At least that is I would say the philosophy 
of GPFS.

JAB.

-- 
Jonathan A. Buzzard                 Email: jonathan (at) buzzard.me.uk
Fife, United Kingdom.



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