On 4/29/2011 10:18 AM, Richard Shaw wrote:
> I was recently sub-contracted to setup BackupPC for a business and
> everything's fine so far but I was hoping to make some improvements.
>
> 1. On the server, which is a Xeon Quad 2GHz machine, I've got a rsync
> over ssh dump that's been running for over 12 hours which is about
> 300GB into a 800GB share. Perl seems to be the bottleneck on the
> server and ssh is only using about 20-30% of one core on the client so
> I'm assuming changing the ssh cypher will not help.
>
> Is there any tips or tricks I can apply in this case?

Is this the 1st or 2nd full? It may improve by itself if you have the 
--checksum-seed=32761 option set so the server won't have to recompute 
the values.  You could also look at the content and how it changes. Big 
files with small changes are bad, since the system has to reconstruct 
the copy with a mix of decompressing the old version and the changes 
from the network.  Maybe there is something that you can exclude or 
handle some other way.  Also, remember that incrementals without levels 
copy everything changed since the previous full and with levels have to 
do extra server-side work to merge the comparison view.

> 2. Can more than one email address be added to the configuration for
> the EMailAdminUserName?

I think it should work to use a comma separated list, but an alternative 
would be an alias in the mail system.

> 3. I have more than one share that needs to be backed up from the
> client but they want a different backup schedule for 1 of the shares.
> Am I going to have to setup fake/virtual hosts to accomplish this?

Yes.  But make sure they understand that the pooling in backuppc means 
they wouldn't actually store more copies (unless they change) of files 
if they run all the shares at the more frequent schedule.

> The host->ip resolution is being handled by a hosts file so I could
> add aliases there so BackupPC would treat them as separate clients,
> right?

Yes, but you could also use the ClientAlias setting in backuppc itself 
to make different host configurations point to the same real name or IP.

-- 
   Les Mikesell
    lesmikesell AT gmail DOT com




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