[Lustre-discuss] MDT disk size consideration

[Arne Wiebalck]

Jiawei,

you may want to have a look at section 20.3.2 in the operations manual,
it discusses how to size an MDT.

 From what I understand, a 100GB MDT is more than enough for your 
~200.000 files.

I think the max MDT size is 8TB.

HTH,
  Arne


Jiawei Zhao wrote:
> Hi All,
> 
> I am wondering if there is some guild lines for MDT disk size. We plan 
> to build a rather small luster cluster with about 200TB disk space, 
> served by about 20 OSS with about 40 (or more) OSTs. The file sizes 
> stored on it will be around 1GB in average. Will a MDT disk with 100 - 
> 200 GB size big enough for it? What is the biggest MDT disk size allowed?
> 
> Best Regards,
> Jiawei
> 
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