Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Of course there is no such thing as protocol D in DRBD. Currently, local writes are only as fast as data reaches the remote side (plus some TCP buffer tuning with protocol A, which won't make a big difference in a long term). This can be a bit of pain if you: - have a slow link, - want to use DRBD for disaster recovery mainly, not for (fast) failover, - have lots of gigabytes to sync, - want the writes to happen fast. I was wondering if a non blocking, async protocol was ever considered in DRBD? So that local writes would be almost as fast as a local media allows; anything which was not transferred to the remote side would be marked as "dirty" and transferred when the time/bandwidth/conditions permit. -- Tomasz Chmielewski http://wpkg.org