Re: I/O tuning... Allocating spindles to databases

  • From: Mladen Gogala <gogala@xxxxxxxxxxxxx>
  • To: kevinc@xxxxxxxxxxxxx
  • Date: Fri, 16 Sep 2005 11:17:03 +0000

On 09/15/2005 03:25:40 PM, Kevin Closson wrote:
>  >>>
> >>>It isn't too difficult to write a simulation that will 
> >>>render the cache useless.
> 
> actually quite easy. create a file that is 100 fold
> larger than cache and do completely random 4KB transfers.
> 
> smoked
> 

But that can easily be solved with larger cache. I know of a site which has 
64GB EMC cache and
they're happy as clams. File that is 100 times larger then that would be 6.4 
TB. They should be
doing 8k transfers.

-- 
Mladen Gogala
http://www.mgogala.com


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