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spickzettel:linux:drbd [2016/10/30 11:57:16] – external edit 127.0.0.1spickzettel:linux:drbd [2020/03/08 15:41:29] (current) – Marcel Jäpel
Line 1: Line 1:
 +====== DRBD ======
 +===== Pakete installieren: =====
 +<code bash>
 +apt-get install drbd8-utils
 +</code>
 +
 +===== Konfiguration /etc/drbd.conf schreiben: =====
 +<code bash>
 +global {
 + usage-count no;
 +}
 +
 +common {
 + startup {
 + wfc-timeout  30;
 + degr-wfc-timeout 15;
 + outdated-wfc-timeout 10;
 + }
 +
 + net {
 + protocol C;
 + shared-secret "MyS3cre3t";
 + max-buffers 36k;
 + sndbuf-size 1024k;
 + rcvbuf-size 2048k;
 + }
 +
 + syncer {
 + rate 4194304k;
 + al-extents 6433;
 + }
 +
 + disk {
 + on-io-error detach;
 + c-plan-ahead 2;
 + c-fill-target 24M;
 + c-min-rate 80M;
 + c-max-rate 720M;
 + }
 +}
 +
 +
 +resource r0 {
 + device /dev/drbd0;
 + disk /dev/sdb;
 + meta-disk internal;
 +
 + on drbd1.eisscholle.net {
 + address 10.0.0.101:7788;
 + }
 +
 + on drbd1.eisscholle.net {
 + address 10.0.0.102:7788;
 + }
 +}
 +
 +</code>
 +Die Konfigurationsdatei auf alle beteiligten Hosts kopieren.
 +
 + 
 +===== Nodes vorbereiten: =====
 +<code bash>
 +root@drbd1:~# drbdadm create-md r0; /etc/init.d/drbd start
 +root@drbd2:~# drbdadm create-md r0; /etc/init.d/drbd start
 +</code>
 + 
 +===== Ersten Primary festlegen und Dateisystem erzeugen: =====
 +<code bash>
 +root@drbd1:~# drbdadm -- --overwrite-data-of-peer primary r0
 +root@drbd1:~# mkfs.ext3 /dev/drbd0
 +</code>
 + 
 +===== Infos über DRBD: =====
 +<code bash>
 +cat /proc/drbd
 +drbdadm cstate r0
 +drbdadm dstate r0
 +drbdadm role r0
 +</code>
 +