On 30/03/12 09:39, Alex Crow wrote:
> We tried removing the compression on some jobs, and we got a great speed
> boost. However, the SSL compression was either absent or minimal, even
> though OpenSSL libs are compiled with zlib:
They probably use Z0 or Z1 for best speed.
if that's the case the
On 05/03/12 21:37, Alan Brown wrote:
> On 05/03/12 19:51, Alex Crow wrote:
>
>> Thanks Alan,
>>
>> I am specifically addressing the encryption support within Bacula:
>>
>> http://www.bacula.org/en/dev-manual/main/main/Data_Encryption.html
> Openssl compresses _if_ compiled with zlib (it usually is)
Am 05.03.2012 15:28, schrieb Kleber l:
> 2012/3/5 Gael Guilmin
>> On 05/03/12 14:00, Gael Guilmin wrote:
>>> I'd like to know if there is a way to allow the use of multi-cores
>> during a backup and especially for the compression of the data?
>>
>> Why do you want compression?
> No, you dont n
The software (bacula in this case) is not involved with managing the keys
in hardware encryption. It is managed by other software or by the tape
library itself. I came from a Networker environment using LTO-4 and
encryption. In that specific case, Quantum has their own key manager (a
relabel of
How does the software specify the encryption key? I read that it needs
specific SCSI commands, which Bacula doesn't send.
__Martin
> On Tue, 6 Mar 2012 14:12:47 -0500, Clark, Patricia A said:
>
> Why would bacula care about hardware LTO encryption? It's transparent to
> the software.
>
>
Why would bacula care about hardware LTO encryption? It's transparent to
the software.
Patti Clark
Sr. Linux System Administrator
On 3/6/12 10:14 AM, "Jeremy Maes" wrote:
>Op 5/03/2012 22:37, Alan Brown schreef:
>> On 05/03/12 19:51, Alex Crow wrote:
>>
>>> Thanks Alan,
>>>
>>> I am specific
Op 5/03/2012 22:37, Alan Brown schreef:
> On 05/03/12 19:51, Alex Crow wrote:
>
>> Thanks Alan,
>>
>> I am specifically addressing the encryption support within Bacula:
>>
>> http://www.bacula.org/en/dev-manual/main/main/Data_Encryption.html
> Openssl compresses _if_ compiled with zlib (it usually
> I thought about that, and so I'm wondering if it's really useful to use an
> MD5/SHA1 signature?
>
I think its very useful. I use that on all of my backups or ~40TB.
This allows verification that the tapes are consistent and you can
also compare that what is on the filesystem matches the hashes
cula-users@lists.sourceforge.net
Subject: Re: [Bacula-users] Multi-cores compression
Ok I didn't know that.
Thank you for your help!
Gael
-Original Message-
From: John Drescher [mailto:dresche...@gmail.com]
Sent: Monday, March 05, 2012 3:30 PM
To: Gael Guilmin
Cc: Alan Brown; bacula-users@lists.
On 05/03/12 19:51, Alex Crow wrote:
> Thanks Alan,
>
> I am specifically addressing the encryption support within Bacula:
>
> http://www.bacula.org/en/dev-manual/main/main/Data_Encryption.html
Openssl compresses _if_ compiled with zlib (it usually is)
It's not hard to test, write to a file ins
>>
>> What about when you are encrypting? You have to do the compression in
>> Bacula as once you've encrypted the data it can no longer be compressed
>> by the drive (eg for LTO < LTO4 where the drive cannot encrypt.)
>
> Encryption programs generally compress as well in order to increase
> entr
On 05/03/12 15:08, Alex Crow wrote:
> On 05/03/12 14:45, Alan Brown wrote:
>> On 05/03/12 14:24, Gael Guilmin wrote:
>>> To gain space on the LT0.
>> Don't bother.
>>
>> 1: Compression maxes out at about 30MB/s
>>
>> 2: LTO has inbuilt hardware compression which is "good enough" and a
>> _LOT_ fast
On 3/5/2012 9:45 AM, Alan Brown wrote:
> On 05/03/12 14:24, Gael Guilmin wrote:
>> To gain space on the LT0.
> Don't bother.
>
> 1: Compression maxes out at about 30MB/s
>
> 2: LTO has inbuilt hardware compression which is "good enough" and a
> _LOT_ faster than any CPU you can throw at the task.
Ok I didn't know that.
Thank you for your help!
Gael
-Original Message-
From: John Drescher [mailto:dresche...@gmail.com]
Sent: Monday, March 05, 2012 3:30 PM
To: Gael Guilmin
Cc: Alan Brown; bacula-users@lists.sourceforge.net
Subject: Re: [Bacula-users] Multi-cores compression
O
To: Gael Guilmin
> Cc: bacula-users@lists.sourceforge.net
> Subject: Re: [Bacula-users] Multi-cores compression
>
> On 05/03/12 14:00, Gael Guilmin wrote:
>> Hello,
>> I'd like to know if there is a way to allow the use of multi-cores during a
>> backup and espec
> Thanks for the answer.
> When you say "at the moment", you mean that in the future it'll?
>
Possibly. This is covered by a few planned projects.
http://bacula.org/en/?page=feature-request
http://www.bacula.org/git/cgit.cgi/bacula/plain/bacula/projects?h=Branch-5.2
John
---
On Mon, Mar 5, 2012 at 9:24 AM, Gael Guilmin wrote:
> To gain space on the LT0.
>
You mean tape. Do not use bacula compression with tape. The HW does
compression automatically and it is much faster.
John
--
Try before y
wn [mailto:a...@mssl.ucl.ac.uk]
> Sent: Monday, March 05, 2012 3:33 PM
> To: Gael Guilmin
> Cc: bacula-users@lists.sourceforge.net
> Subject: Re: [Bacula-users] Multi-cores compression
>
> On 05/03/12 14:00, Gael Guilmin wrote:
> > Hello,
> > I'd like to know if
From: Alan Brown [mailto:a...@mssl.ucl.ac.uk]
> Sent: Monday, March 05, 2012 3:33 PM
> To: Gael Guilmin
> Cc: bacula-users@lists.sourceforge.net
> Subject: Re: [Bacula-users] Multi-cores compression
>
> On 05/03/12 14:00, Gael Guilmin wrote:
> > Hello,
> > I'd like
To gain space on the LT0.
-Original Message-
From: Alan Brown [mailto:a...@mssl.ucl.ac.uk]
Sent: Monday, March 05, 2012 3:33 PM
To: Gael Guilmin
Cc: bacula-users@lists.sourceforge.net
Subject: Re: [Bacula-users] Multi-cores compression
On 05/03/12 14:00, Gael Guilmin wrote:
> He
On 05/03/12 14:00, Gael Guilmin wrote:
> Hello,
> I'd like to know if there is a way to allow the use of multi-cores during a
> backup and especially for the compression of the data?
Why do you want compression?
--
Tr
> I’d like to know if there is a way to allow the use of multi-cores during a
> backup and especially for the compression of the data?
>
I do not believe this is available in bacula at the moment. However
you may be able to turn compression off and use a filesystem that
supports compression like b
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