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: > 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. 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. mike