> Currently I do gpg encryption and upload it to amazon s3 but only on
> the files that are "Static archives" aka after x amount of time they
> do not change but we need a copy of them.
>
> http://lucasmanual.com/mywiki/Bacula#head-53a198d817eca824a1d8ecb3f86c5662303fd668
>
> I would be interested to know how get bacula backup file to be
> automatically gpg-ed. What are the performance hits on restore when
> going through 20x15gb bacula volumes?
>
> Thanks,
> Lucas
To automatically encrypt the file volume you will have to put a command
in the "run_after" file. (see my previous email for howto link).
As far as performance hits - below is a set of benches from a while back.:
(this is on single Xeon 2.8 EM64T, 1 Gig RAM with RAID5 running Gentoo
in two separate 64 and 32 bit installs)
GnuPG 1.4.2 Benchmarks (symmetric encryption, no compress)
4.0 Gig backup file
GnuPG-64 | GnuPG-32
---------------------------------------------------------------------------
twofish (256) 253s (16.2 mbps) | 257s (15.9 mbps)
aes (128) 310s (13.2 mbps) | 278s (14.7 mbps)
aes192 318s (12.8 mbps) | 288s (14.2 mbps)
aes256 325s (12.6 mbps) | 311s (13.2 mbps)
OpenSSL 0.9.7-r2 Benchmarks
4.0 Gig backup file
OpenSSL-64 | OpenSSL-32
---------------------------------------------------------------------------
aes (128) 164s (25.0 mbps) | 163s (25.1 mbps)
aes192 166s (33.9 mbps) | 168s (24.4 mbps)
aes256 173s (23.5 mbps) | 179s (22.9 mbps)
Please note, that Bacula's native implementation of OpenSSL will be a
lot slower (10 times?) because it calculates signatures for each file.
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