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....
vSphere – ‘The Number of HA Heartbeat Datastores for this host is 0’
KB ID 00011202 Problem Seen after enabling HA on your vSphere Cluster HA Error: The number of heartbeat datastores for host is 0, which is less than required: 2 or HA Error: The number of heartbeat datastores for host is 1, which is less than required: 2 I had this on my test network today, and to be honest thats not really surprising because I don’t have any shared storage. Note: You can see the same error if your ‘HA...
VMware ESX Error “cmd addnode failed for primary node: Internal AAM error”
KB ID 0000298 Problem Seen in a Virtual Center HA environment – even after selecting “Reconfigure for HA” on the ESX host. Errors: cmd addnode failed for the primary node:Internal AAM error – agent could not start – Unknown HA error. Cannot complete the configuration of the HA agent on the host – See the task details for additional information. Other HA configuration error. Solution 1. How...
Exchange 2007 CCR to Exchange 2010 HA Migration with (HA Proxy)
KB ID 0000525 Problem Today, I am pleased to say we have the work of guest poster Hesan Javed, who runs through an Exchange 2007 CCR to Exchange 2010 HA Migration. Solution Steps Required. Exchange 2007 HUBCAS Upgrade to SP3 Exchange 2007 Mailbox Upgrade to SP3 Installing Exchange 2010 SP1 HUBCAS after Upgrading Exchange 2007 to SP3 Uninstalling Exchange 2007 from the Passive node in the Cluster Installing Exchange 2010 SP1 Mailbox...