Category: Uncategorized

Nutanix .NEXT first day

When I got to the key note this morning, the word was out that there would be some pretty cool announcements be made. And that was the fact. One of the biggest announcements is Acropolis. This is Nutanix own hypervisor platform with there management interface Prism. The hypervisor is based on KVM but is modified to […]

Tuesday June 9th, 2015 in Uncategorized | No Comments »

Nutanix alert not cleared in Prism

When I visit a Nutanix customer, I always check the cluster health and if there are no alerts. One customer had a error that wasn’t acknowledged for more than 45 day’s. And that alert repeated itself every hour resulting in more than 500 critical alerts. After resolving the issue (rebooting the CVM) I wanted to […]

Tuesday November 4th, 2014 in Uncategorized | 1 Comment »

How to check the Nutanix cluster metadata store

Just a quick note. While upgrading 32 Nutanix nodes for a customer, I wanted to make sure that every node is part of the metadata store. This can be achieved by entering the command: nodetool -h localhost ring Output will look like: nutanix@NTNX-14SX31290007-C-CVM:10.83.9.152:~$ nodetool -h localhost ring Address         Status State   Load            Owns    Token                                                           w7iesrvWOTsU53XPvNTlWCVgub36H9PIJcE3nYDS2rHb4N7XzJEUpGp            […]

Friday October 10th, 2014 in Uncategorized | 2 Comments »

Updating a single Nutanix node

All the controller VMs of a Nutanix cluster have to have the same version of NOS installed. If you upgrade a cluster. All the CVMs are upgraded one-by-one.If you want to add a new node to the cluster, that node has to have to same version of NOS. So what if you bought new Nutanix […]

Thursday October 2nd, 2014 in Uncategorized | No Comments »

Putty fatal error after upgrading Nutanix NOS

After a upgrading 32 Nutanix servers (8 boxes of 4 servers) I got a error from Putty while trying to connect to a CVM with SSH: “Disconnected: No supported authentication methods available (server sent: publickey)”         Before upgrading I haven’t any problems using Putty to SSH to a CVM. The error indicates […]

Wednesday July 30th, 2014 in Uncategorized | No Comments »