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<p>Hello,<br>
<br>
We are having a problem in the synchronization of the DRBD, we
currently have storage with zfs+drbd. <br>
</p>
<p>We recently had an incident in the mirror storage, so we had to
reconfigure the pool for this storage.<br>
But when activating the drbd synchronization the main storage
raises a lot of load and currently it is in production containing
VMs disks which causes problems in these, we tried to reduce the
synchronization rate but the configuration does not seem to obey
us. <br>
</p>
<p>Do you have any idea what could cause this problem?. Thanks.<br>
</p>
<p><u>Next I show you the configuration that we use</u>:<br>
</p>
<p>resource "rec1" {<br>
device minor 1;<br>
disk "/dev/zvol/zfs-storage/DiscoZFS";<br>
meta-disk internal;<br>
<br>
on "drbd-st03" {<br>
node-id 0;<br>
}<br>
<br>
on "drbd-st04" {<br>
node-id 1;<br>
}<br>
<br>
disk {<br>
resync-rate 1M;<br>
c-max-rate 1M;<br>
c-min-rate 500;<br>
c-plan-ahead 5;<br>
}<br>
<br>
connection {<br>
host "drbd-st03" address PRIVATEIP:7789;<br>
host "drbd-st04" address PRIVATEIP:7789;<br>
net {<br>
protocol B;<br>
max-buffers 2048;<br>
max-epoch-size 2048;<br>
sndbuf-size 2M;<br>
}<br>
}<br>
}<br>
</p>
<p><br>
</p>
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