HAST initial sync speed

Thomas Steen Rasmussen thomas at gibfest.dk
Wed Aug 18 12:42:10 UTC 2010


On 18-08-2010 14:11, Pawel Jakub Dawidek wrote:
> On Wed, Aug 18, 2010 at 01:26:19PM +0200, Thomas Steen Rasmussen wrote:
>    
>> Sorry for responding to my own post. I recreated the HAST setup with the
>> four harddrives and it is now saturating the gigabit link, it is
>> synching at a steady
>> rate of 112 megabytes per second, meaning that each of the disks are
>> reading/writing at just under 30 megabytes per second. It would probably be
>> even faster if the network wasn't limiting it.
>>
>> I built ZFS on top of it and everything seems to be working as expected.
>>
>> Thank you again for looking at this.
>>      
> I'm very glad to hear that. I changed the default MAX_SEND_SIZE to 32kB
> as it seems to be the safest setting. I had similar problem in ggate.
>
>    

OK. So it will be (or has been) committed to the tree ? What about MFC ? 
I should
probably know this, but:
What does this mean, like, when will this fix be in -STABLE or even in a 
-RELEASE ?

> BTW. What network cards do you use there?
>
>    

The servers has four of these:
bce0: <Broadcom NetXtreme II BCM5709 1000Base-T (C0)>

Thomas Steen Rasmussen


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