Juniper SRX Cluster (Active / Standby)
SRX Cluster KB ID 0000990 Problem I’ve had very little exposure to JUNOS and Juniper equipment, and later in the year I have to deploy some for a client in a failover cluster. So I had a good look round on the Internet, and found loads of good blog posts and KB articles like this one. The problem is they are all geared to setting up a cluster, they ASSUME you then know about security zones, how to add default routes, and setup...
Proxmox HA Cluster
Proxmox HA Cluster KB ID 0001872 Problem Proxmox HA Cluster: As the name implies this allows the cluster to ‘restart’ failed virtual machines on another host in the cluster in the event of a host failure. Unlike VMware (that has a vCenter appliance to do this) in Proxmox it can be configured from any host. Which may seem like an advantage – but the GUI can get a little ‘clunky’ whilst configuring HA....
Nutanix: Could Not Reach Next Server
Could Not Reach Next Server KB ID 0001865 Problem Nutanix is very flaky! On a new (single host cluster,) post setup whilst attempting to login to Prism for the first time, it wanted to link to my Nutanix account. Unknown host, could not reach NEXT server. Please configure name server Solution : Could Not Reach Next Server Why do I say it’s flaky, well I defined a DNS server when I created the cluster. However, If I fired up SSH...
Cluster: Not Reachable On UDP Port 3433
KB ID 0001621 Problem Seen on a Microsoft Hyper-V failover cluster (Server 2019); Network Interfaces {Node-Name} {Interface-Name} and {Node-Name} {Interface-Name} are on the same cluster network, yet address {IP-Address} is not reachable from {IP-Address} using UDP port 3433 Solution I’ve seen this error before, and usually you just need to disable the firewall or open UDP port 3433 and then re-validate the cluster (job done)....
Hyper V: Live Migration Error 0x80071008
KB ID 0001387 Problem When attempting to perform a ‘live migration’ of a virtual machines storage, this happened. Error Invalid Parameter Code 0.80071008 Solution Oddly I had already moved one of the virtual machines drives to another cluster, before this happened, so I was a little confused. To get the migration to work, I needed to ‘unmount’ the parent VMs mounted .ISO file. The set the migration going again....