Scalable Mail solution with NAS

Wed Jan 31 08:19:59 UTC 2001

Ok, this is my beef with NetApp.  We have a NetApp F720 with a single 
disk shelf.  The F720 "brain box" has two power supply units that slide 
into the back on the right and left side, each having it's own 48V DC 
connectors (about the size of LS1010 power supplies).

Now the disk shelf.  It has two power supplies that slide into the front 
and connect into the backplane with no connectors on the front.  A fixed 
connector assembly is located on the back.  Just one.  One!

No A side.  No B side.  Just one +/-/GND.  We gave NetApp a call and 
their workaround was "you could use a diode and connect both A & B wires 
to the unit".  Uhh... thanks. They also told us their design engineer 
had already been slapped on the hand, and they are working on their next 
version.

It was an interesting gotcha for our server engineer who wansn't too 
farmiliar with DC power plants.

Now, does anyone know of a diode that can do 10A at 48V?  Any EE's out 
there?

Mike Johnson wrote:

> Patrick Hollowell [phollowell at vnet.net] wrote:
> 
>> My company is in the process of evaluating several mail solutions, scalable
>> to 150k to 200k mailboxes.  One thing we'd like to do is run the message
>> store over Gig-E on network attached storage.  Two of the vendors we've been
>> looking at claim performance issues running this solution over NFS.  Does
>> anyone know of a carrier-class mail solution that will run well on NAS?
> 
> 
> Take a look at NetApp.  My company (unfortunately) signed an NDA with
> NetApp, but they've posted that Yahoo uses NetApp for their e-mail:
> http://www.netapp.com/partners/catalog.cgi/company/28
> 
> Rumor has it (no, I'm not violating my NDA) that Hotmail also uses NetApp.
> -Plenty- of other large sites use 'em for e-mail.  Just call a NetApp
> sales person and and ask for the list.  It's impressive.  I do believe
> it contains some carrier-class implementations.
> 
> Mike