Re: [Bacula-devel] Hardware Crypto-Accelerators and Bacula

[Kern S. <ke...@si...>]

Hello

Given the way you asked your questions, I don't expect you will get any 
answers ...

On Wednesday 09 September 2009 16:52:12 Steve Polyack wrote:
> I may have asked this question before, but has anyone had any luck with
> getting Bacula to utilize a hardware crypto accelerator for FD
> encryption?  Setting the engine(3) options in openssl.cnf do not appear
> to have any affect.  This can be confirmed with statistic programs which
> hook into the crypto drivers, showing that no data is being processed by
> the accelerator during backups.
>
> A few months ago I attempted a patch to add OpenSSL engine(3) selection
> support to the Bacula source code.  This was unsuccessful, as merely
> selecting and enabling the hardware crypto engine will cause Bacula to
> crash upon updating the cipher context.  Based on various similar
> examples I have coded, the best I can come up with is that this has
> something to do with the IV generation / IVs that are being used.  

I have no idea what IVs are, and I imagine it is the same for other 
developers.

> Does anyone have any ideas here?

No.

>
> This is a valuable feature to support.  When backing up large amounts of
> data, I have witnessed almost a quadrupling of the job run time after
> simply enabling FD encryption.  Rates drop from 15MB/sec to under
> 5MB/sec, making backups take way too long.  It is also easy to monitor
> the massive load which they put upon the CPU.

Kern

>
>
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