[Box Backup] Continuous backup only when idle

Chris Wilson chris at qwirx.com
Thu May 5 21:53:01 BST 2011

Hi all,

On Thu, 5 May 2011, Peter Jalajas, GigaLock Backup Services wrote:

> Yes, I have had the same problem.  It appears to me that Box Backup
> fills my meager outbound DSL bandwidth, which apparently interferes
> with my inbound bandwidth, making our systems run slow.

Yang Zhang, is it your Internet connection that is slowing down, or the 
host running bbackupd?

> I've tried trickle and wondershaper; wondershaper worked a little 
> better.  Within the past week, I've tried setting AutomaticBackup = no 
> and then set up a late night cronjob with
> 43 2 * * * nice /usr/local/sbin/bbackupctl sync-and-wait
> Seems to be working well enough so far.

Some other options might be:

1. Setting the new MaxUploadRate setting to some value (in bytes per 
second) around half your upload bandwidth, or lower if you want to 
reduce CPU usage on the client;

2. Reducing MaximumDiffingTime to reduce the amount of time that bbackupd 
spends performing heavy disk I/O;

3. Using a SyncAllowScript to prevent backups from starting during your 
peak hours.

Cheers, Chris.
_____ __     _
\  __/ / ,__(_)_  | Chris Wilson <chris+sig at qwirx.com> Cambs UK |
/ (_/ ,\/ _/ /_ \ | Security/C/C++/Java/Ruby/Perl/SQL Developer |
\__/_/_/_//_/___/ | We are GNU : free your mind & your software |

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