Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
I have tried everything under the sun and I can't get syncer to go
faster that about 15Mbit/sec. Any hints would be greatly appreciated as
these devices are greater than 300G and initial sync is taking forever
at ~10-15M/sec.
I'm running drbd82 and kmod-drbd82 (v8.2.6) on CentOS 5. Here's the
cleansed version of my drbd.conf:
global {
usage-count no;
}
common {
protocol C;
}
resource mysql-01 {
syncer {
al-extents 3833;
rate 500M;
}
net {
max-buffers 8192;
}
disk {
no-disk-flushes;
no-md-flushes;
}
on mysql1 {
device /dev/drbd1;
disk /dev/data1/mysql-01;
address <IP>;
meta-disk internal;
}
on mysql2 {
device /dev/drbd1;
disk /dev/data1/mysql-01;
address <IP>;
meta-disk internal;
}
}
resource mysql -02 {
syncer {
al-extents 3833;
rate 100M;
}
net {
max-buffers 8192;
}
disk {
no-disk-flushes;
no-md-flushes;
}
on mysql1 {
device /dev/drbd2;
disk /dev/data1/mysql-02;
address <IP>;
meta-disk internal;
}
on mysql2 {
device /dev/drbd2;
disk /dev/data1/mysql-02;
address <IP>;
meta-disk internal;
}
}
resource mysql3 {
syncer {
al-extents 3833;
rate 100M;
}
net {
max-buffers 8192;
}
disk {
no-disk-flushes;
no-md-flushes;
}
on mysql1 {
device /dev/drbd3;
disk /dev/data1/mysql-3;
address <IP>;
meta-disk internal;
}
on mysql2 {
device /dev/drbd3;
disk /dev/data1/mysql-3;
address <IP>;
meta-disk internal;
}
}
Thanks,
Sylvain Niles
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