On Thu, May 30, 2013 at 6:53 AM, Nicola Scattolin <n...@ser-tec.org> wrote:
>
> i have checked the disk usage and the i/o that backuppc output me in the
> summary page, and 7.37 is Mb/sec is the value i got.
> The server is virtualized but the hardisk is linked directly to the
> virtual machine in mirroring raid, do you thing is a good speed or could
> be better?
I always start with the assumption that disk seek time is the
bottleneck until proven otherwise, because it is orders of magnitude
slower than any other computer operation and backuppc does a lot of
it. What else is competing for the head position on those drives?
It can also be on the sending side, especially if you have a lot of
little files and/or applications running concurrently. It is
possible for CPU/RAM/network to be the problem, but you have to have
done something wrong.
--
Les Mikesell
lesmikes...@gmail.com
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