like we know ECC (Error-Correcting Code) is a great feature we have to tackle soft errors happening in RAM, without causing OS to fail, but ECC protects us from single soft error in a memory block at a time, so if there are multiple soft errors in a single memory block or hard errors on… Continue reading vSphere 5.5 or higher and Reliable Memory Technology
Category: vSphere 6
Currency Settings in vRA 6.2
How to change currency settings in vRA 6.2? Login with ‘IaaS Admin’ role account. go to Infrastructure -> Administration -> Global Properties Find Group: Installation – Edit Core set Value: en-US or hi-IN or gu-IN (See full list here) (see following screenshot)
Network IO Control 3.0 – Per vNIC bandwidth control
Per vNIC bandwidth Reservation, Limits and Shares a vNIC connected with Distributed Portgroup on DVSwitch created with version 6.0 gives you following settings for the same vNIC, if I change network portgroup to Standard switch based port group, what I see is there in following scree.
Long Distance vMotion in vSphere 6
With the help of dynamically resized network socket buffer, vSphere 6 is capable to support vMotion of a VM across vCenter servers located far apart. Network round trip latency >100 ms (upto 150 ms) is tolerated/supported. basic requirements to achieve long distance vMotion are as bellow 1) L2 Streched VM Network 2) Multi-site gateway support… Continue reading Long Distance vMotion in vSphere 6
vSphere 6, Clear state
Memory management in vSphere 5 happens with following 4 states. High State: 100% of minFree available (<100% and >=64%, TPS is in action) Soft State: 64% of minFree is available (<64% and >=32%, Ballooning is in action) Hard State: 32% of minFree is available (<32% and >= 16%, Compression, Page Swapping) Low State: 16% of minFree… Continue reading vSphere 6, Clear state
ESXi 6 – minFree value
minFree is associated with High Memory state of ESXi 6 or prior to it. If you are wondering how ESXi is calculating minFree value, here is the math behind it. Value of minFree is 899 MB for the ESXi host with upto 28 GB RAM. host with more than 28 GB RAM, minFree is calculated… Continue reading ESXi 6 – minFree value
Modify DCUI access list
In vSphere 6 or prior, by default ROOT is the user who has access to DCUI, even in the lockdown mode. If I wish to add additional users in this list, how to do it? Using vSphere Web Client Select your host, go to Manage->Settings->Advanced System Settings and try to locate DCUI.Access parameter as shown… Continue reading Modify DCUI access list
vSphere 6, Lockdown mode
What is Lockdown mode? to improve security of ESXi host which is being managed by vCenter server, we enable lockdown mode on that host, that way it will restrict any operations to be carried out on that host directly but you will be forced to go via vCenter server only to be able to manage… Continue reading vSphere 6, Lockdown mode
VMware vCenter 6.0 – deployment
Most I liked about it is same set of features in windows based vCenter server and Linux based appliance. And the way services are arranged in two parts, Platform Services Controller (PSC) and vCenter Server (Management Node). Supports embedded PSC based deployment mode which is just one VM/Physical host with PSC and vCenter server both… Continue reading VMware vCenter 6.0 – deployment