I have what sounds like it is a less-powerful system than yours, and I 
see significantly faster performance from Bacula 3.0.2 (and before that 
with 2.4 and earlier).  My system uses a 3ware 9500 connected merely via 
32-bit PCI, and I have a single separate spool drive connected via the 
motherboards SATA ports.  My machine does have motherboard GigE, but as 
previously pointed out that shouldn't matter.  Director, File Daemon, 
Storage Daemon and MySQL all reside on the same system.

Just to reconfirm:
     * Is this the performance you see with full backups? (differentials 
and incrementals will always be slower, of course).
     * Are you avoiding using software compression?
     * Are the files from the raid array very small or with thousands of 
files per directory? (which can be important depending on the filesystem 
used).


You may want to verify that the spool drive is performing as expected by 
just doing some copying from the raid array to the spool drive--although 
I doubt that is the issue you are hitting.

-se

On 12/8/2009 2:38 PM, Hayden Katzenellenbogen wrote:
> Write cache is enabled.
>
> I have a separate sata drive connected to the motherboards sata controller 
> that I am using to spool the data.
>
> The only thing that is coming off this raid array is the data to be backed 
> up.  Writing to that array is done only once per hour and totals about 1gig 
> per day.
>
> I must say I am at a total loss.
>
> -H
>
> -----Original Message-----
> From: John Drescher [mailto:drescherjm AT gmail DOT com]
> Sent: Tuesday, December 08, 2009 2:30 PM
> To: Timo Neuvonen; bacula-users
> Subject: Re: [Bacula-users] Network transfer Speed
>
> On Tue, Dec 8, 2009 at 5:13 PM, Timo Neuvonen<timo-news AT tee-en DOT net>  
> wrote:
>    
>> "John Drescher"<drescherjm AT gmail DOT com>  kirjoitti viestissä
>> news:387ee2020912081330v6e8fa197s5009971859acbd75 AT mail.gmail DOT com...
>>      
>>> On Tue, Dec 8, 2009 at 4:16 PM, Hayden Katzenellenbogen
>>> <hayden AT nextlevelinternet DOT com>  wrote:
>>>        
>>>> Yes it is a raid-6 configuration running on a 3ware 9690SA-8I.
>>>>
>>>>          
>> I've never had this card, it should be powerful one I think. But I've
>> sometimes experienced really poor write performance with 3ware 9550 and 9650
>> cards when unit's write cache was disabled (controller default). If it is
>> disabled, try if it has any effect.
>>
>>      
> Yes if the cache is disabled you will get horrible random write
> performance. If this is also the spool drive that can be the reason.
>
> John
>
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