[Beowulf] Any recommendations for a good JBOD?

Michael Will mwill at penguincomputing.com
Thu Feb 18 11:07:16 PST 2010

Often a jbod is just sas/sata attached, and the real controller is in the host that attaches to it. It could then be a hardware raid controller
from adaptec, or one of the very fast lsi sas/sata hca's which you could then use with software raid and/or LVM...


-----Original Message-----
From: beowulf-bounces at beowulf.org on behalf of Rahul Nabar
Sent: Thu 2/18/2010 11:00 AM
To: gerry.creager at tamu.edu
Cc: Beowulf Mailing List
Subject: Re: [Beowulf] Any recommendations for a good JBOD?
On Thu, Feb 18, 2010 at 12:12 PM, Gerald Creager <gerry.creager at tamu.edu> wrote:
> For what you're describing, I'd consider CoRAID's AoE technology and system,
> and use their RAID6 capability. Otherwise, get yourself a box with up to 8
> slots, preferably with hot-swap capability, and forge ahead.

Thanks Gerry!  That one looks promising.

One thing that always confuses me:

Let's say I do software RAID. So just buy a JBOD device. It still has
some "controller" on it, correct? Is the quality of this controller
very critical or not so much? And if a unit advertises itself as
Hardware RAID can I still use it as JBOD mode? There seems more hits
for "RAID" out there than for "JBOD". Maybe I am looking up the wrong

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