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
next prev parent 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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