Re: FW: 20TB Storage System

[Petri Helenius]

Poul-Henning Kamp wrote:

2) What is the maximum size of a filesystem that I can present to the host
OS using vinum/ccd? Am I limited anywhere that I am not aware of?
   

Good question, I'm not sure we currently know the exact barrier.

Just make sure you run UFS2, which is the default on -CURRENT because 
UFS1 has
a 1TB limit.

3) Could I put all 20TB on one system, or will I need two to sustain the IO
required?
   

Spreading it will give you more I/O bandwidth.

 

Can you say why? Usually putting more spindles into one pile gives you 
more I/O,
unless you have very evenly distributed sequential access in pattern you 
can predict
in advance.

Pete

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