[DRBD-user] drbd + 10gig network

Mike Lovell mike at dev-zero.net
Sat Oct 31 04:59:54 CET 2009

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.

Mike Lovell wrote:
> Igor Neves wrote:
>> Hi,
>> 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.
>> Cheers,
>> 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.


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