Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Jürgen Scholz wrote: >> I'm crudely testing whether replication works at all using 'dd': >> at m1: dd if=/dev/urandom of=/dev/drbd4 bs=512 count=1 conv=fsync >> oflag=sync seek=0 >> at m2: less -f /dev/drbd4 > I never used iSCSI, but the protocol probably uses caching in the > server daemon. Try with bs=1M count=~$RAM_of_machine. This definately > will make all involved caches overflow and force the iscsi server and > the i/o kernel layer to write their cache on the disk. I'm not actually using iSCSI for anything. Hadn't gotten to that step yet. I intended to use iscsi-target to export the drbd to other machines, and then seeing if I can multipath the primaries together. However, just starting iscsi-target without actually using the iscsi devices or an initiator, is already enough to trigger the problem. So I'm not sure what I messed up :)