Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Hi,
I have DRBD 0.7.22 running on two SLES 10 SP1 servers. The partitions for DRBD are located on a LVM volume. While doing the initial sync, it seems that this is very slow:
0: cs:SyncSource st:Primary/Secondary ld:Consistent
ns:598700 nr:0 dw:0 dr:601844 al:0 bm:36 lo:0 pe:198 ua:786 ap:0
[>...................] sync'ed: 0.1% (604824/605408)M
finish: 215:02:54 speed: 708 (684) K/sec
I use dedicated gigabit NICs for this, having tried a straight and crossed cable and a switch. "ethtool" reports 1000 Mbits. Filecopies with SCP go beyond 80 MB/sec.
The "rate" parameter in drbd.conf is at 33M, which I derived from the drbd.org site.
I do get this in the secondary node:
Cpu0 : 0.0%us, 0.3%sy, 0.0%ni, 0.0%id, 99.3%wa, 0.0%hi, 0.3%si, 0.0%st
Cpu1 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu2 : 0.0%us, 0.0%sy, 0.0%ni, 0.0%id,100.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu3 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Which seems to indicate that twee CPUs are at 100%.
Anyone any idea as to why?
Thank you!
Bart