Harold Hannelius, If you are using the "cp" utility to copy into Gluster then you may be running into a problem with use of an extremely small record size coupled with write replication overhead, try dd if=/dev/zero of=/gluster/test.dd bs=1024k count=256 Which uses a 1-MB write size, and see if that behaves differently. I'm not a debian expert but in RHEL5.3 the "cp" utility record size was 4 KB and in RHEL6.2 the same utility has a 32-KB I/O size, you can check using strace utility. For small-write-size utilities you can also try NFS to Gluster server, since NFS client aggregates writes.
