Without HW or SW encryption , data can be recovered ?? (295 Views)
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Valued Contributor
chindi
Posts: 385
Registered: ‎07-24-2008
Message 1 of 4 (295 Views)

Without HW or SW encryption , data can be recovered ??

Hi ,

In our setup we are using LTO 3 & LTO 4 , without any H/W or S/W encryption .

Say if due to negligence our tape gets misplaced somewhere , then can data be recovered from it ?

 

We are using 2003 Cell manager DP 6.11 , HP-UX 11iv2 clients .

Honored Contributor
danielbraun
Posts: 752
Registered: ‎07-07-2010
Message 2 of 4 (284 Views)

Re: Without HW or SW encryption , data can be recovered ??

Hi,

 

yes, the data can be recovered from it. So if you loose the media you'll get into trouble. Of course, if someone finds your media, he would need to know that you are using DP to get the data imported and recovered. But when you imagine that a internal guy could crap the media, then the data can be recoverred  with no big effort.

 

So I strictly recommend to buy the software encryption license and as I'm not sure if this was already implemented in DP 6.11, I recommend to upgrade at least  to DP 7.01 too. The encryption license encrypts all data before written to tape. It might be worth to calculate to get rid of LTO 3 and replace it with at least LTO 4, as with LTO 4 the encrytion was implemented on hardware for no costs.

 

Best regards

Daniel

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Valued Contributor
chindi
Posts: 385
Registered: ‎07-24-2008
Message 3 of 4 (276 Views)

Re: Without HW or SW encryption , data can be recovered ??

Hi Daniel ,

 

> with LTO 4 the encrytion was implemented on hardware for no costs.

 

are you talking about Hardware encryption here ?

Hardware vs software which one is the best ? and why ?

 

Honored Contributor
danielbraun
Posts: 752
Registered: ‎07-07-2010
Message 4 of 4 (269 Views)

Re: Without HW or SW encryption , data can be recovered ??

Hi,

 

the hardware encryption on the tape drive is better, since the data are compressed first and encrypted afterwards. When using software encrytion the data are encrypted first, sent to the tape drive and as the data are encrypted no compression can be done. Second pro for HW encryption, you do need any license in DP. Cons for both methods - if you loose the key, all data are lost. So make sure you backup the internal database of DP at least once a day.

 

Best regards

Daniel

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