[DRBD-user] drbd is performing at 12 MB/sec on recent hardware
bart.coninckx at telenet.be
Tue Oct 14 18:32:50 CEST 2008
I previously posted about a sync going somewhat slow (managed to get it up to
I figured this could be just the syncing, so I decided to do some performance
tests as mentionned in the webinar.
dd if=/dev/zero of=/dev/drbd0 bs=1G count=1 oflag=direct
and the output was:
1073741824 bytes (1.1 GB) copied, 86.4031 seconds, 12.4 MB/s
Not very exciting.
The server is a HP ML370 G5 with a 1TB RAID-5 setup. The controller used the
cciss driver. DRBD is 0.7.22. OS is SLES 10 SP1. The network link is gigabit,
full duplex, set to 1000 Mbit.
I plan to enable write back cache, but I wonder if that is going to make THE
What else could I do to boost this? Use another I/O scheduler?
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