NetEye installation topology can fluctuate over time, with hosts of various types that can be, for example, added or removed from a cluster in response to changes in business demand or customer requirements. In a cluster environment, hosts are manually mapped in a file called /etc/neteye-cluster, a sort of static inventory solution that is the…
Read MoreUpgrading a NetEye 4 installation, either as a cluster or a single instance, is not always a painless activity. NetEye 4 is, in fact, a very sophisticated product that offers its customers a very large number of features, and operates in complex and business-critical environments. From version to version, the upgrade procedure may change: as…
Read MoreIn the previous blog post in our #devops series, we discussed how to automatically provision a NetEye cluster with virtually zero hassle. Thanks to Ansible, in fact, we dramatically reduced the amount of manual effort needed to generate a fully working cluster. This, in turn, opened up an opportunity to boost our cluster testing infrastructure…
Read MoreDeploying a NetEye Cluster If you regularly follow this blog, you know that we automatically generate and test a NetEye ISO every night. Starting from the ISO, we can also automatically provision a NetEye virtual machine in a VMware vSphere infrastructure. One might wonder, “What if, since I already have these two ingredients available, I…
Read MoreHistorically, NetEye Clusters were configured with DRBD as Master/Slave resources. This led to the following rather cumbersome resource configuration for an N-node cluster: $SERVICE_drbd_master ( x 1 ) $SERVICE_drbd_master_clone ( x N ) $SERVICE_drbd_fs $SERVICE_virt_ip $SERVICE Note: $SERVICE serves as a placeholder for any Cluster Service running in NetEye 4. At least ten constraints were…
Read MorePer ottenere, oltre la completa replicazione dei dati con RAID, anche una flessibilita’ di continuita’ dei servizi NetEye in caso di problemi, tanti clienti hanno installato un cluster con tutti i servizi di monitoraggio, capacity view/management ed asset management (inventario hw / software ) in failover. La configurazione di questo cluster comprende la funzionalita’ di…
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