On Wed, Jul 8, 2009 at 12:12 PM, Martin Simmons<martin AT lispworks DOT com> 
wrote:
>>>>>> On Mon, 6 Jul 2009 10:14:09 -0700, Hayden Katzenellenbogen said:
>>
>> Hello,
>>
>> Thanks to a patch published two weeks ago I am finally making headway
>> into the wonderful world of Bacula. I have a single machine right now
>> with about 1.2T of data I am backing up.
>>
>> When I run the btape fill test I get write speeds of around 70MB/s when
>> I run a full backup from the local machine I get about 20MB/s is there
>> anyway to figure out where the bottle neck is?
>
> Are you using software compression (gzip) in Bacula?
>
> What do "top" and "iostat 10" show when running a backup?
>
> You could try using tar to check the speed of your filesystem, e.g.
>
> time tar cf /dev/null /some/very/large/directory
>

Could also be the database. I mean if the db is on the same raid array
as the source disk do not expect 70MB/s backups. Spooling attributes
should help some in this case.

John

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