We wanted to provide you an in-depth explanation of the Ping-Node offering clarifications on its function and usage. Incorrect Ping-Node configuration and functionality can cause problems with HA clusters. The importance of this post is critical for a proper setup with the iSCSI Failover. Why do we need a ping-node or rather ping-nodes? DSS V6 iSCSI Failover (and soon NFS Failover) uses a heartbeat to check the Primary and Secondary hosts to each other. We [...]

I am not kidding. We were getting queries about the performance of our latest DSS V6 build 4786. So I needed to quickly set up a performance benchmark. It took me about 5 minutes to set one up with a Fibre Channel volume connected to a VMware ESXi 4.1.0 host. My test server has a 4Gb dual-port FC HBA, so in order to get maximum performance I configured a round-robin Multipath. Then I ran IOmeter [...]

Business continuity is becoming a more and more important feature. A significant portion of the purchases of our Data Storage Software are in pairs. Customers are using pairs of 2 systems in order to build high availability clusters with our iSCSI Failover feature. (Our recent webinar on iSCSI Failover was our best attended webinar ever.) Getting to the point: why would one want to make switchless 10Gb connections. Even though 10Gb CX4 ports are inexpensive [...]