[DRBD-user] drdb+raid 5 + gigabit ethernet

Sandra sandra at ccuec.unicamp.br
Mon Feb 14 12:34:23 CET 2005

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


   We are using Fedora Core 1, drbd-0.6.10, Linux Kernel 2.4.22-1.2174,  
SCSI RAID ADPTEC 2200S, and an
Intel PILA 8490MT 10/100/1000 PCI RJ netcard on a  two INtel Xeon 
3,6GHZ  microprocessor slave .  And on the master Fedora Core 1, 
drbd-0.6.10, Linux Kernel 2.4.22-1.2174 , Intel PRO 100 netcard, two 
Intel Pentium III 1.4GHZ microprocessor.

On the master and on the slave we have defined the same LVM filesystems 
configuration (4 drbd configs), and
on the slave we have made a 2 raid 5 configuration . The problem occurs 
when we start drbd on the master
and the slave starts to syncronize only one drbd config per time (speed 
500M). The others configs stay waiting for connect state,
and with the drbd0, that is the biggest one ( 120G), the slave became 
blocked, it only answers to pings...

Does anybody knows if drbd works with raid cards, or if raid cards work 
well with drbd syncronization? Is there
any performance tunning that we have to do to it work better, or it is 
better to remove raid 5 and use the disks

Thanks in advance


More information about the drbd-user mailing list