[Sunhelp] 3500 vs 4500

[Yoho, Cindy]

So if I want 4 CPUs and a separate board each for the tape library and disk
array, I've already used up 4 of my 5 boards on the 3500.  What about lan
cards, if I wanted a second lan interface would I use up the last board? 

> -----Original Message-----
> From:	Jim Howell [SMTP:jwh2 at cornell.edu]
> Sent:	Thursday, September 21, 2000 12:20 PM
> To:	sunhelp at sunhelp.org
> Subject:	Re: [Sunhelp] 3500 vs 4500
> 
> Hi,
>          A single I/O board can handle at least 3 devices and more 
> depending on device type.  So you could have your disk array and tape 
> library share an I/O board from that viewpoint, however they also share
> the 
> capacity of that board and affects redundancy.
>          If you think that your desired configuration would complete fill
> a 
> 3500 I'd consider getting a 4500 so that you have growth potential.
> Jim
> 
> At 12:05 PM 9/21/2000 -0500, Yoho, Cindy wrote:
> >Hi Folks,
> >
> >I am looking at the specs for the E3500 and the E4500 from Sun's website
> and
> >I have a question I'm sure you all can answer for me quicker than a Sun
> >rep...:-)
> >
> >The specs say the only differences are in the max number of CPUs (8 vs
> 14),
> >the max external disk storage (2 TB vs 4 TB), the max amount of RAM (8 GB
> vs
> >14 GB), and the max number of boards (5 vs 8).  It's this last difference
> >that I am wondering about.  Are these boards the CPU and I/O boards?  In
> >other words, the more CPUs I add (14 CPUs would take up 7 boards at 2
> per)
> >the fewer I/O boards I have left (7 left for I/O boards if I have 14
> >CPUs)???
> >
> >We need to put a 300GB disk array and an AIT tape library on this server.
> >Would that take up 2 of my boards, or is it figured differently?  What
> about
> >the internal devices, like DAT, CDROM, and internal disks - do they take
> up
> >a single I/O board?  I guess I'm used to figuring slots, and I'm not sure
> >what a board contains on a Sun.  With HP (which I'm more familiar with!)
> >some of the "boards" are half-height, some are full-height and some are
> 1.5
> >height.  I may have 5 "slots" but I can put into those 5 slots 10 1/2
> height
> >boards, or 5 full-height, or 3 1.5 height and 1 half-height, etc.
> >
> >Thanks in advance for your help on this -
> >
> >Cindy
> >_______________________________________________
> >SunHELP maillist  -  SunHELP at sunhelp.org
> >http://www.sunhelp.org/mailman/listinfo/sunhelp
> 
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