cual es mejor viagra viagra o viagra Lustervol to see monitor the status of the sync and status of the drbd resource, run the following command: [root@viking-07 ~]# drbd-overview verbose once the syncing has started, we are ready to initialize the drbd resource as a lvm physical volume by running the following command: [root@viking-07 ~]# pvcreate /dev/drbd/by-res/clustervol next, we create an lvm volume group that includes this pv: [root@viking-07 ~]# vgcreate clustervol /dev/drbd/by-res/clustervol finally, we need to add a logical volume to represent the iscsi logical unit (lus). cheap generic viagra cheap viagra online buy viagra viagra online viagra online forsale buy viagra online buy cheap viagra There can be multiple lus, but in our setup, we created one 10 gig logical volume for testing purposes.  we created the lv with the following command: [root@viking-07 ~]# lvcreate -l 10g -n lun1 clustervol when the drbd sync has finally completed, when drbd-overview verbose is executed, the output should look similar to this: [root@viking-07 ~]# drbd-overview verbose 1:clustervol connected primary/secondary uptodate/uptodate c r----- lvm-pv: clustervol 930. 99g 10. 00g pacemaker configuration pacemaker is a cluster resource manager which handles resource level failover.   corosync is the messaging layer which handlers node membership in the cluster and node failure at the infrastructure level. To configure pacemaker, do the following: primary node generate corosync key: [root@viking-07 ~]# corosync-keygen chmod authkey to read-only by root, then copy authkey file to the other node: [root@viking-07 ~]# chmod 0400 /etc/corosync/authkey [root@viking-07 ~]# scp /etc/corosync/authkey root@192. 168. 39. 108:/etc/corosync/ copy corosync. Conf. Example to corosync. Conf under /etc/corosync: [root@viking-07 ~]# cp /etc/corosync/corosync. Conf. Example /etc/corosync/corosync. Conf edit the following fields (this example assumes eth0 is the primary interface): [root@viking-07 ~]# export coro_port=4000 [root@viking-07 ~]# export coro_mcast=226. 94. 1. 1 [root@viking-07 ~]# export coro_addr=`ifconfig eth0 | grep "inet addr" | awk '{print $2}' | cut -d ":" -f 2 | cut -d ". " -f 1,2,3 | xargs -i {} echo {}". 0"` [root@viking-07 ~]# sed -i. Gres "s/. *mcastaddr:. */mcastaddr:\ $coro_mcast/g" /etc/corosync/corosync. Conf [root@viking-07 ~]# sed -i. Gres "s/. *mcastport:. */mcastport:\ $coro_port/g" /etc/corosync/corosync. Conf [root@viking-07 ~]# sed -i. Gres "s/. *bindnetaddr:. */.