[DRBD-user] sync data size of DRBD

Lyre 4179e1 at gmail.com
Fri Sep 23 10:09:31 CEST 2011

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.

Hi all:

Want to know the sync data size of DRBD.

If application write 1 bytes to a drbd device, how may datas will be
write to another node? In this 2 scenarios:

1. Both nodes are connected (UpToDate/UpToDate).

Does it equal to the IO size?

2. background resync.

In a oracle case, we have file size increased about 135MB, but DRBD
have to transmit about 1GB, is that something wrong?

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