Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Tomki wrote:
> resource r0 {
> protocol C;
> startup { wfc-timeout 0; degr-wfc-timeout 120; }
> disk { on-io-error detach; }
> }
>
> If I copy a 1GB file to /mnt on primary node , how to measure the time
> of this file's synchronization to secondary node
> done completely.
according to the config you posted, you are using protocol C on the drbd
resource. the drbd.conf man pages says that with protocol C the "write
IO is reported as completed, if it has reached both local and remote
disk." in other words, when you write a file on the primary, drbd will
not return the write operation as completed until drbd has written the
blocks to the local disk as well as written it to the disk on the remote
node. this makes it really easy to measure the time that it takes. just
do `time cp /path/to/large/file /mnt/new/path/to/large/file`. the write
operations in the cp wont complete until the data is on both disks.
mike