On Tue, 2 Sep 2008, Mertol Ozyoney wrote:

> That's exactly what I said in a private email. J4200 or J4400 can offer
> better price/performance. However the price difference is not as much as you
> think. Besides 2540 have a few function that can not be found on J series ,
> like SAN connectivity, internal redundant raid controllers [redundancy is
> good and you can make use of the controllers when connected to some other
> hosts ilke windows servers] , ability to change stripe size/raid level and
> other paramters on the go etc..

It seems that the cost is the base chassis cost and then the price 
that Sun charges per disk drive.  Unless you choose cheap SATA drives, 
or do not fully populate the chassis, the chassis cost will not be a 
big factor.  Compared with other Sun products and other vendors (e.g. 
IBM), Sun is fairly competitive with its disk drive pricing for the 
2540.  The fiber channel can be quite a benefit since it does not care 
about distance and offers a bit more bandwidth than SAS.  With SAS, 
the server and the drive array pretty much need to be in the same rack 
and close together as well.  A drawback of fiber channel is that the 
host adaptor is much more (3X to 4X) more expensive.

A big difference between the J series and the 2540 is how Sun sells 
it.  The J series is sold in a minimal configuration with the user 
adding drives as needed whereas the 2540 is sold in certain 
pre-configured maximal configurations.  This means that the starting 
cost for the J series is much lower.

Bob
======================================
Bob Friesenhahn
[EMAIL PROTECTED], http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/

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