Re: [Veritas-bu] Sun/StorageTek based LTO4 encryption
2010-03-02 09:49:20
On Tue, 2 Mar 2010, Shekel Tal wrote:
> I have also been looking at this as an option.
> One of the considerations is the effect encryption has on compression.
>
> I have heard you loose the ability to compress effectively when using
> compression.
>
> Have you noticed an effect on your tape drive compression when using
> tape drive based encryption?
Yes.
LTO-4 TAPE = 800GB
IBM LTO-4 ENCRYPTED (RATIO = ~1.5:1)
ABCD25 3 67 02/17/2010 20:00 02/23/2010 00:00 hcart 1188618163 0
MPX 03/26/2010 00:00 N/A FULL ENCRYPTION
ABCD36 3 101 02/18/2010 00:12 03/02/2010 00:00 hcart 1239789810 0
MPX 04/02/2010 00:00 N/A FULL ENCRYPTION
IBM LTO-4 NO ENCRYPTION (RATIO = ~3.1:1)
ABCD49 2 1144 02/23/2010 02:43 02/26/2010 01:32 hcart 2451541654 0
MPX 03/19/2010 02:49 N/A FULL
ABCD50 2 1350 02/26/2010 01:32 03/01/2010 01:05 hcart 2377975447 0
MPX 03/22/2010 02:05 N/A FULL
ABCD51 2 1275 02/24/2010 20:01 02/27/2010 10:40 hcart 2575741349 0
MPX 03/20/2010 11:40 N/A FULL
Justin.
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- Re: [Veritas-bu] Sun/StorageTek based LTO4 encryption, (continued)
- Re: [Veritas-bu] Sun/StorageTek based LTO4 encryption, judy_hinchcliffe
- Re: [Veritas-bu] Sun/StorageTek based LTO4 encryption, Shekel Tal
- Re: [Veritas-bu] Sun/StorageTek based LTO4 encryption, Justin Piszcz
- Re: [Veritas-bu] Sun/StorageTek based LTO4 encryption, judy_hinchcliffe
- Re: [Veritas-bu] Sun/StorageTek based LTO4 encryption, Shekel Tal
- Re: [Veritas-bu] Sun/StorageTek based LTO4 encryption, judy_hinchcliffe
- Re: [Veritas-bu] Sun/StorageTek based LTO4 encryption, David Magda
- Re: [Veritas-bu] Sun/StorageTek based LTO4 encryption, judy_hinchcliffe
- Re: [Veritas-bu] Sun/StorageTek based LTO4 encryption,
Justin Piszcz <=
- Re: [Veritas-bu] Sun/StorageTek based LTO4 encryption, Shekel Tal
- Re: [Veritas-bu] Sun/StorageTek based LTO4 encryption, Justin Piszcz
- Re: [Veritas-bu] Sun/StorageTek based LTO4 encryption, Shekel Tal
- Re: [Veritas-bu] Sun/StorageTek based LTO4 encryption, Shekel Tal
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