NFS server is used to make its data generally available to clients. The automount program is used to manage mount points for autofs. Continue reading
Author Archives: Lisenet
Setting up an O2CB Cluster with Dual Primary DRBD and OCFS2 on Oracle Linux 7
We are going to build a two-node active/active HA cluster using O2CB and DRBD. Continue reading
Active/Active High Availability Pacemaker Cluster with GFS2 and iSCSI Shared Storage on CentOS 7
We are going to build a three-node active/active HA cluster using Pacemaker and Corosync. Continue reading
Fixing Sendmail: fatal: setrlimit: Permission denied
SELinux prevents Apache from sending emails on CentOS. Continue reading
Active/Passive MySQL High Availability Pacemaker Cluster with DRBD on CentOS 7
We are going to build a two-node active/passive MariaDB HA cluster using Pacemaker and Corosync. Continue reading
Active Node Not Updated by Virtual Server: Simpana cvclusternotify on Unix Failover
After installing the software components on the physical nodes and the cluster group client is configured, we must configure the cvclusternotify script. Continue reading
Resize GPT Multipath Disk with Parted on CentOS 6
Online resize of an iSCSI multipath device with GPT partition. Requires no server restart, but the partition needs to be unmounted and not in use. Continue reading
Active/Passive Cluster With Pacemaker, Corosync and DRBD on CentOS 7: Part 4 – Configure Fencing (STONITH)
The following is part 4 of a 4 part series that will go over an installation and configuration of Pacemaker, Corosync, Apache, DRBD and a VMware STONITH agent. Continue reading
Active/Passive Cluster With Pacemaker, Corosync and DRBD on CentOS 7: Part 3 – Replicate Storage with DRBD
The following is part 3 of a 4 part series that will go over an installation and configuration of Pacemaker, Corosync, Apache, DRBD and a VMware STONITH agent. Continue reading
Active/Passive Cluster With Pacemaker, Corosync and DRBD on CentOS 7: Part 2 – Add and Configure Resources
The following is part 2 of a 4 part series that will go over an installation and configuration of Pacemaker, Corosync, Apache, DRBD and a VMware STONITH agent. Continue reading