First of all, there are a few prerequisites that are required before your configure VCHA A dedicated port group for HA traffic preferably on a separate VLAN A Range of IP addresses from the subnet / VLAN define above A Minumum of 3 ESXi hosts in the cluster that will contain the vCenter, Peer, and Witness… Continue reading vSphere6.5 vCenter HA Configuration and vCenter Fail Over
During the C220 M4S POST (Power On Self Test) the system may hang during power on. Bios version encountered this on was: C220M126.96.36.199b.0.1201161639 BMC/CIMC Firmware was on 3.0.(1)c POST hung on this screen: Configuring platform hardware screen. Subsequent reboots have no impact. and no noticeable errors or alarms present. The trick is here is to… Continue reading Cisco C220 M4S Hangs during POST
Q: Why Can’t I see all my Nexus Switches (3k and 9k including MDS) in my Vision Intelligent Operations (Multi System Managment) MSM Sunburst chart or compliance reports? A: When adding Nexus switches to your Vision Intelligent Operations instance please note that there is a hard limit on the number of switches that will be… Continue reading Vision Intelligent Operations Nexus Switch Limit.
A Colleague recently asked me that was the reason in configuring two PSCs with our management environment as they are not fully redundant without a load balancer sitting in front of them in a multi PSC deployment. I explained that there is replication between both PSC’s and in the event of the primary PSC failing that with a simple CLI command… Continue reading Repointing vCenter PSC after PSC Node Failure
With the rollout of ESX6.0 Update 2 (build number 362759) VMware has bundled a new VIB for the VMware VSAN in the update. Previously there was no VSAN VIB included the ESXi Image and if you trying to upgrade your host using esxcli with this command esxcli software vib update -d “/vmfs/volumes/bnesx03-localstorage/ESXi-6.0.0-4192238-6.0.10.zip” Tthe process will fail with this error… Continue reading Upgrading Hosts beyond ESXi 6.0 U2
Recently I had an issue with the VMware VSAN where the health status was listing a number of inaccessible objects . It issue was due to an MTU mismatch on a Nexus 5k that was configured incorrectly. But prior to figuring that out I had to do some troubleshooting and that was my first introduction to RVC… Continue reading Introduction to RVC – VSAN Trouble Shooting Tool
With the introduction of the new AMP-2S management platform into the Vblock/Vxblock CI Solution portfolio it might be a good time to review the supportability and compatibility of of each amp type. Before that a quick note on the AMP-2S. The AMPs-2s introduces for the first time iSCSI Datastores presented from the VNX-e array . DELL EMC… Continue reading V(x)Block AMP supportability matrix