[DRBD-user] drbd + 10gig network
igor at 3gnt.net
Fri Nov 20 18:35:56 CET 2009
On 11/20/2009 05:01 PM, Mike Lovell wrote:
> Mike Lovell wrote:
>> Mike Lovell wrote:
>>> Igor Neves wrote:
>>>> Are you still using software raid?
>>>> Have you tryed out using hardware raid?
>>>> The only time i had tryed out drbd with mdraid, well let's say, i
>>>> never will try that again, from now on, we only use areca raid
>>>> cards. Anyway, software raid it's slow, if you want to do this
>>>> thing, buy raid controllers, the best ones are areca, 3ware and lsi
>>>> it's bad, don't know all the others.
>>>> On 10/23/2009 10:40 PM, Mike Lovell wrote:
>>>>> exaggerated the problem. when the sync hangs, the drbd module is
>>>>> almost completely unresponsive. i tried doing a pause-sync and
>>>>> then resume-sync thinking that it would nudge the module into
>>>>> working but the commands timeout on talking to the module. i can
>>>>> still cat /proc/drbd but that is about it until i take down the
>>>>> network interface and drbd detects the network change. if i then
>>>>> bring back up the interface, drbd detects it can talk again but
>>>>> then only syncs a couple of megabytes before stalling again. i
>>>>> have tried every way i can think of to check the integrity of the
>>>>> network link between the hosts and everything says they are fine
>>>>> except for during a ping flood there will be a few out of a couple h
>>> yes, i am using software raid. i guess i didn't try changing that
>>> during my hardware changes. i'll see if i can scrounge up some raid
>>> controllers to test this with.
>> i got a hold of a few 3ware controllers and used these for the disk
>> array instead of the software raid. unfortunately, it still broke.
> after much more experimentation and buying new hardware, i got a
> things working. i did eventually try doing this on the hardware i had
> using opensuse 11.2 and centos 5.4. same problems. luckily, i was able
> to convince my boss to let me buy some new 10 gig nics cause those are
> the only thing that didn't change. i ordered some cards from chelsio
> (pcie, dual port cx4) and just got them on wednesday. put them in,
> configure them, and start syncing. never hiccuped. so, i guess for
> anyone else wanting to try this, avoid using 10gig pcie intel nics.
Can you please give me the exact Part-Number of the Cards that work from
And by the way the exact Model/Part-Number from intel, the ones that
Igor Neves<igor.neves at 3gnt.net>
3GNTW - Tecnologias de Informação, Lda
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