I had RAID 1 hardware fail (2-disk enclosure). The data was fine on both disks and if it hadn't been I would have had the usual assortment of tools to try to repair/recover one or both disks.

I don't know what I'd do if the same occurred with a Drobo disk (and neither did the Drobo salesperson I asked), in the same or a larger configuration, other than to call Drobo and hope that they were still in business, were still supporting my model, would do the repair for a tolerable price, and wouldn't take too long. That's a dependency I don't want and don't see any reason to assume.

        Tom


On Dec 14, 2009, at 9:13 AM, David Avendasora wrote:

Drobo is all magic. There's no RAID version to pick because it does it's own version of RAID - but allows you to swap a drive at any time for a larger drive. In _theory_ you can add more capcity by simply adding new, larger drives as you need.

But it is "magic"

RAID 10 is dead simple, but you can't easily just upgrade drive size like you can with Drobo. I'd go with RAID 10 in a production environment.

Dave


On Dec 14, 2009, at 12:08 PM, Miguel Arroz wrote:

Hi!

Mind something about Drobo... although it may be cool as a consumer product, it's a little too "magic" for my taste. I doubt you can have enough control over it to configure it in the RAID mode you want, and what data is in what disk. But I might be wrong.

 Yours

Miguel Arroz

On 2009/12/14, at 16:51, Kieran Kelleher wrote:

Lon,

Looks very interesting .... which model drobo are you using and how are you interfacing to your server?

-Kieran

On Dec 14, 2009, at 11:44 AM, Lon Varscsak wrote:

I don't know about performance, but my Drobo is frakking awesome
(www.drobo.com).

-Lon

On Mon, Dec 14, 2009 at 7:04 AM, Kieran Kelleher <[email protected]> wrote:
Hi All,

Looking for suggestions for an economical (< $1000) "poor man's" RAID 1+0 4-drive storage solution for a dual 2.0 G5 Xserve that must be used as a dedicated database server. It is a cluster node model with just one
hard-drive bay.

It has Firewire 800 ports and 2 PCI-X slots. One PCI slot has a video card,
one is empty.

I was thinking possibly of a esata PCIX card with a OWC 4-drive hardware
RAID rack unit:
http://www.datoptic.com/cgi-bin/web.cgi? product=eSATA_pcix&detail=yes - $99 http://eshop.macsales.com/shop/hard-drives/RAID/Rack_Mount/ FireWire_eSATA_USB2_RAID
-   $850 (includes 4 x 500GB enterprise hard drives)

There will be 2 slaves continuously replicating for additional data
protection.

Any thoughts or other suggestions?

Regards, Kieran
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Senior Software Engineer
K12, Inc.

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