I would say
Data Domain  de-dupe ratio ==> 24:1
or
protecTier 7650G de-dupe ratio => 34:1


On Tue, Jul 3, 2012 at 12:52 AM, Shawn Drew
<shawn.drew AT americas.bnpparibas DOT com> wrote:
> If someone pulls a disk out of the array, (replacing a bad disk, etc), you
> can't tell a regulator/auditor that it was encrypted.  A purely
> bureaucratic reason, but still valid.
> Regulations pop up all the time without actual technical consideration. (I
> want to punch anyone who says the words "7 years" to me!)
>
> The OP's email address sounds like he's involved in the health care
> industry.  They have the worst of it.  Almost as bad as the financial
> industry.
>
>
> Regards,
> Shawn
> ________________________________________________
> Shawn Drew
>
>
>
>
>
> Internet
> dplaflamme AT GMAIL DOT COM
>
> Sent by: ADSM-L AT VM.MARIST DOT EDU
> 07/02/2012 05:35 PM
> Please respond to
> ADSM-L AT VM.MARIST DOT EDU
>
>
> To
> ADSM-L
> cc
>
> Subject
> Re: [ADSM-L] VTL's and D2D solutions
>
>
>
>
>
>
> On Jul 2, 2012, at 9:35 AM, Kevin Boatright wrote:
>
>> We are currently looking at adding a Disk to Disk backup solution.  Our
> current solution has a 3584 tape library with LTO-5 drives using TKLM.
>>
>> We have looked at Exagrid and Data Domain.  Also, I believe HP has a
> solution.
>>
>> We will need to have encryption on the device and the ability to
> replicate between the two disk units.
>
> Why do you have to have encryption on the device?
>
> No, that wasn't a sarcastic question.
>
> If someone pulls a disk out of your DataDomain RAID, what can they do with
> it? Your data is striped across many drives, in chunks that are admittedly
> large enough to have a whole mailing address on it. Is someone afraid that
> someone else will steal one or more drives and then read unstructured
> streams of data looking for PII? Really?
>
> There's no chance that a tape will fall off a truck as you ship your
> backups off site. Sure, encrypt the VPN between sites, or use a dedicated
> network. But that doesn't mean you have to encrypt your data on the
> appliance, unless you're more paranoid than I am (or answer to people who
> are more paranoid than I am). At this point, I start worrying more about
> debacles from poor implementation or management of encryption than I do
> about loss of unencrypted data.
>
>> Anyone have any comments or recommendations?
>
> Besides DataDomain, HP, and IBM, I'm sure the rest of EMC, Oracle, and
> even small brands like Coraid would propose different solutions. For
> example, why not replicate cheap disk, on top of which you build FILE
> devices? Do you need the cost of a DataDomain or ProtecTier front-end, or
> do you just replicate unduplicated data? Oracle and Coraid will sell you
> large arrays of cheap disk with ZFS front-ends that could replicate data
> if you need it and could deduplicate the data as justified. I'm not saying
> I'd want to bet my job on Coraid, but others find there cost advantage
> over DataDomain attractive.
>
>> Thanks,
>> Kevin
>
> Nick
>
>
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