gpfsug-discuss-boun...@spectrumscale.org wrote on 01/07/2019 09:25:23:
> From: Michael Hennecke
> To: gpfsug main discussion list
> Date: 01/07/2019 09:38
> Subject: [EXTERNAL] Re: [gpfsug-discuss] Any guidelines for choosing
> vdisk size?
> Sent by: gpfsug-discuss-boun...@spectrumscale.org
...
Ryan,
So several others have weighed in with options, I personally have a different view
and so far the deployments i've been involved in have all required multiple filesystems per cluster, with different capacity and performance requirements per filesystem.
Because of this I prefer to use a
I would mainly consider future upgrades. F.ex. do one vdisk per disk shelf
per rg. F.ex. for a GL6S you would have 12 vdisks, and if you add a GL4S
you would add 8 more vdisks, then each spindle of both systems should get
approximately the same number of IOs.
Another thing to consider is
Ryan,
That is a question with many variables. Some of the factors influencing the
decision are:
* Are you sharing data and metadata (the GNR default these days), or are you
building separate data and metadata vdisks (the "older" default, and still
useful for some use cases)? If you have
Sure; thanks, I meant to add those details:
In our case, all GSS/DSS-G with GNR.
The context here is general information, but specifically designing new
filesystems/setting up one of these systems from scratch in what I’d figure to
be the traditional way: don’t allocate the entire storage if
