Hi;

You are right that J series do not have nvram onboard. However most Jbods
like HPS's MSA series have some nvram. 
The idea behind not using nvram on the Jbod's is 

-) There is no use to add limited ram to a JBOD as disks already have a lot
of cache.
-) It's easy to design a redundant Jbod without nvram. If you have nvram and
need redundancy you need to design more complex HW and more complex firmware
-) Bateries are the first thing to fail 
-) Servers already have too much ram

Best regards




Mertol Ozyoney 
Storage Practice - Sales Manager

Sun Microsystems, TR
Istanbul TR
Phone +902123352200
Mobile +905339310752
Fax +902123352222
Email [EMAIL PROTECTED]



-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Albert Chin
Sent: Wednesday, July 02, 2008 9:04 PM
To: zfs-discuss@opensolaris.org
Subject: Re: [zfs-discuss] J4200/J4400 Array

On Wed, Jul 02, 2008 at 04:49:26AM -0700, Ben B. wrote:
> According to the Sun Handbook, there is a new array :
> SAS interface
> 12 disks SAS or SATA
> 
> ZFS could be used nicely with this box.

Doesn't seem to have any NVRAM storage on board, so seems like JBOD.

> There is an another version called
> J4400 with 24 disks.
> 
> Doc is here :
> http://docs.sun.com/app/docs/coll/j4200

-- 
albert chin ([EMAIL PROTECTED])
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