[OLPC-Philippines] Back-up process requirement

[Mel Chua]

RAID-like option: takes a lot of space. If each student's journal can be 
up to half a gig (afaik that's back-of-the-envelope how much it gets on 
the XO), a classroom of 40 kids = 20GB thumbdrive and 0 data privacy.

Automatic server backup is a feature that's been available for several 
months. 
(http://wiki.laptop.org/go/Feature_Backup_and_restore_to_school_server) 
I've tested this myself; it works, at least on XOs. I see no reason why 
it would not work for SoaS, but have not tried - Caroline may know 
better what the status of SoaS with respect to schoolservers is. It's 
clunky, and the interface is ugly, but it works. You *do* need engineers 
who know what they're doing to make sure it's implemented properly, 
though - last time I checked, ease-of-setup hadn't been tackled yet.

--Mel

James Shields wrote:
> Have you considered a RAID-like option ... store the classroom data on 
> all machines in the classroom?  Full mirror on every machine.
> 
> James Shields
> 
>     -----Original Message-----
>     *From:* Charles Chen [mailto:ideasman88 at yahoo.com.au]
>     *Sent:* Friday, June 12, 2009 12:45 PM
>     *To:* OLPC Mailing List
>     *Cc:* James Shields
>     *Subject:* Back-up process requirement
> 
>     Hi James,
> 
>     Thank you for raising the issue. Yes, the back-up is required to
>     maintain a record of the kid's work as he progresses on doing the
>     course supplement as well as really having a back-up record on the
>     current activity in case the USB being used is not available for any
>     reason (lost, stolen or corrupted).
> 
>     However, please bear in mind we are discussing this on the
>     hypothetical basis. Until we can actually run a pilot which will
>     simulate the same classroom conditions of doing this, we will never
>     know for sure how realiable this will be or if it will work at all.
>     Hence, the need for the pilot.
> 
>     I will keep you in loop when we are about to run the first pilot to
>     avail of your cooking ops, I mean your software developer skills.
> 
>     Thanks.
> 
>     Charles
>         ----------------------------------------------------------------------
> 
>         Message: 1
>         Date: Fri, 12 Jun 2009 12:22:02 +0800
>         From: "James Shields" <james at marasbaras.com
>         </mc/compose?to=james at marasbaras.com>>
>         Subject: Re: [OLPC-Philippines] OLPC deployment model will be
>             interactive
>         To: "OLPC Philippines/Pilipinas grassroots"
>             <olpc-philippines at lists.laptop.org
>         </mc/compose?to=olpc-philippines at lists.laptop.org>>
>         Message-ID: <MPEIKKIHAEKFDBMDPGJBMEGOEDAC.james at marasbaras.com
>         </mc/compose?to=MPEIKKIHAEKFDBMDPGJBMEGOEDAC.james at marasbaras.com>>
>         Content-Type: text/plain; charset="iso-8859-1"
> 
>         For OLPC XO, I agree with you entirely.  USB drives are the only
>         way to go
>         for delivery.  Interactive is the ideal solution.
> 
>         Since I haven't been in on the conversations about how you plan
>         to deliver,
>         what will the back up files be used for?  Keeping the results of
>         student
>         homework?  Keeping the content around so that it can be used for
>         the next
>         class?
> 
>         I was merely commenting on the possibility of a lower tech
>         solution for
>         schools that cannot get XOs.  If this is outside the scope fo the
>         discussion, sorry for bringing it up.
>         James Shields
> 
> 
>           -----Original Message-----
>           From: olpc-philippines-bounces at lists.laptop.org
>         </mc/compose?to=olpc-philippines-bounces at lists.laptop.org>
>         [mailto:olpc-philippines-bounces at lists.laptop.org
>         </mc/compose?to=olpc-philippines-bounces at lists.laptop.org>]On
>         Behalf Of Charles Chen
>           Sent: Friday, June 12, 2009 10:57 AM
>           To: OLPC Mailing List
>           Subject: [OLPC-Philippines] OLPC deployment model will be
>         interactive
> 
> 
>                 Hi James,
> 
>                 The OLPC XO deployment model I am considering for local
>         school
>         pilots will all be interactive using USBs to contain the content
>         to be used
>         and Sugar as the application to support this. I am not
>         considering providing
>         a static option as this will require a printer and all the related
>         consumables involved to support this. There is also the related
>         support and
>         maintenance responsibilities required from the school if this is
>         provided.
> 
>                 I have yet to identify what option will be used to
>         back-up the files
>         used other than using a server for this purpose. I would
>         appreciate your
>         inputs on the matter.
> 
>                 Thanks.
> 
>                 Charles
> 
> 
> 
>