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From: Sam <sah@softcardsystems.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@cse.psu.edu>
Subject: Re: Fwd: [9fans] Ad link
Date: Thu, 24 Mar 2005 16:15:37 -0500	[thread overview]
Message-ID: <Pine.LNX.4.60.0503241539520.12105@athena> (raw)
In-Reply-To: <Pine.LNX.4.58.0503240853330.17754@enigma.lanl.gov>

On Thu, 24 Mar 2005, Ronald G. Minnich wrote:
>
>> Actually I meant to say, 9fans only price. I'll also give really good
>> prices for the shelf with 10 blades as well.  We sell these for $2,495
>> but I'll sell one to 9fans folk at the `we don't make any money' price
>> of $1,500.
>
> These are just raw disks, or is there a file system on there that does
> snapshots?

<theskinny>

AoE is a really light protocol for wrapping ATA commands in
Ethernet frames.  The EtherDrive blade is a nanoserver
that sits on the network serving AoE and issuing ATA commands
to its attached disk.  The shelf provides a way for each blade
to get its power and physical ethernet port.

So you plug each EtherDrive into a switch, yourself into the
(same) switch, and you access the disks -- whether it's ten or
ten thousand.

</theskinny>

As an aside, since AoE is just a wrapper for the ATA commands,
you can take a disk out of a machine, put it on an ED blade,
and remount it over the network.

So to answer your question, from the client side a full
shelf looks like ten disks.

We're currently developing raid / volume management software
for plan 9 for our raidblade product.  It should be released
within the month.

Sam



  reply	other threads:[~2005-03-24 21:15 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-03-24 15:08 Brantley Coile
2005-03-24 15:54 ` Ronald G. Minnich
2005-03-24 21:15   ` Sam [this message]
2005-03-24 22:31     ` Ronald G. Minnich
2005-03-24 22:47       ` Russ Cox
2005-03-25 15:34         ` Brantley Coile
2005-03-26  0:00           ` geoff
2005-03-26  0:19             ` Russ Cox
2005-03-27 19:03         ` Fwd: " McLone
2005-03-25  4:39       ` geoff
2005-03-25  9:02     ` vdharani
2005-03-25 18:36     ` [9fans] tsleep / timer questions Devon H. O'Dell 
2005-03-25 18:55       ` jmk
2005-03-25 20:19         ` Devon H. O'Dell 
2005-03-25 18:57       ` Russ Cox
2005-03-25 20:04         ` Devon H. O'Dell 
2005-03-25 20:12           ` Russ Cox
2005-03-25 20:23             ` Devon H. O'Dell 
2005-03-25 21:36               ` Russ Cox
2005-03-26  8:30                 ` Devon H. O'Dell 
2005-03-26  8:36                   ` [9fans] Kernel interface manpages Devon H. O'Dell 
2005-03-26 17:45                     ` Russ Cox
2005-03-26 19:56                       ` Devon H. O'Dell 
2005-03-26 23:03                     ` vdharani
2005-03-26  0:22       ` [9fans] tsleep / timer questions vdharani
2005-03-25  8:51 ` Fwd: [9fans] Ad link vdharani
2005-03-25 15:27   ` Brantley Coile

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