vRA_vROPs

What-If VMWare vRealize Operations for VxRail/vSAN Host Remove from Cluster

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Have you ever acquired hardware for a new project that gets killed or moved to the cloud?  Has it ever been end of year for a vendor and you acquire additional hardware for future projects?  Have you ever been approaching your end of quarter/year and you still have funds that need spent from your budget and you acquire more hardware?  If you have ever found yourself in the above scenarios then you have also found yourself with one cluster is over sized and another cluster may need to expand resources. 
If you have ever found yourself in this situation then leveraging vROPS to see if you can remove hosts from one cluster to move another will come in handy.  Any time I am planning node relocations I leverage vROPs to see what my remaining resources will be.  Also, see if the hosts I’m removing will give me the required resources on the other cluster.  See previous article for leveraging what-if for host adds.

Article on same process but for adding host

What-If in VMware vRealize Operations for VxRail/vSAN Host adds to Cluster

How to use What-If Process

Machine generated alternative text: vm vRealize Operations Manager Home Alerts Environment Administration Q BACK Quick Start Operations Overview Optimize Performance Workload Optimization Rightsizing Recommended Actions Optimize Capacity Overview Reclaim What-If Analysis Troubleshoot Workbench Virtual Machine VSAN using Logs Compliance Manage Applications Discover Services Monitor Applications What-lf Analysis Overview o Saved Scenarios Workload planning: Traditional Workload Workload planning: Hyperconverged c Workload Setup a scenario to 'deploy applications' by adding new workload or 'deprecate applications' by removing existing workload You can also evaluate the impact ot 'reclaiming inefficient workload' using remove workload scenario. by Plan tor 'future workload' to be deployed on vSAN environment with VMS associated with specific storage policy related factors (such as FTT, RAID), to evaluate if the usable capacity can cater to workload to be deployed. You can also evaluate the impact ot 'reclaiming inefficient workload' an vSAN cluster by using remove VMS scenario. ADD VMS REMOVE VMS ADD VMS REMOVE VMS Infrastructure planning: Traditional Infrastructure Infrastructure planning: Hyperconverged Infrastructure Determine the impact ot adding or removing specific capacity in your environment. If you are planning to upgrade the hosts in a cluster, setup a stacked scenario to 'Refresh hardware' with combination of remove existing capacity trom cluster and add new capacity to cluster. Determine the impact ot adding specific hyperconverged capacity in your vSAN environment You can plan to add new vSAN ready nodes to your vSAN cluster to evaluate the impact ot increase in HCI ADD HOSTS REMOVE HOSTS capacity ADD HCI NODES REMOVE HCI NODES

Home > Optimize Capacity > What-if Analysis > Infrastructure Planning: Hyperconverged > REMOVE HCI NODES

Machine generated alternative text: Infrastructure Planning: Hyperconverged Remove HCI Nodes SCENARIO NAME LOCATION SERVER DETAILS DATE RUN SCENARIO Remove Single Host Richardson (DALPRDESXVlC02) Server type Dell Inc. vxRaiI P570F Specification Manufacture year Cost Number of servers to remove Start date 4/09/20 CANCEL Non-produc tion Intel(R) xeon(R) cold 6154 CPU g 300GHZ, 299 GHZ, 2 sockets, 36 cores, 766 GB RAM, 20,796 GS 2017 us$87,532 Currently there are I server(s) of the selected type in this cluster End date* •our engine is able to make projections up to maximum of one year from the current date SAVE
Select your vCenter & cluster you want to remove hosts from. Select server and select the host type in cluster and then select number of hosts you want to remove
Machine generated alternative text: O CPU* O Available capacity: 370.71 GHz/770 GHz S With Removed capacity: -107.75 GHz, 262.97 GHz/662.25 GHz •All capacity utilization numbers are projected peak values for forecasted perioc[ Memory* O Available capacity: 2.72 TB/5_33 TB S With Removed capacity: -766 GB, 1.98 TB/4.58 TB Disk spaces O Available capacity: 83.86 TB/141.41 Ta S With Removed capacity: -20.31 TB, 63.55 TB/121.1 TB CPU Memory Disk Space > 1 year remaining until CPU runs out 800K 600K 400K 200K Apr I Apr 9 (New Workload) May I Jun I Jul 1 Aug I Sep I Oct 1 Nov I Dec 1 Jan I Feb 1 Mar I Apr I
Machine generated alternative text: CPU Memory Disk Space > 1 year remaining until Memory runs out Apr I Apr 9 (New Workload) May I Jun I Aug I sep 1 octi Nov 1 Dec 1 Jan I Feb 1 Mar I Apr I
Machine generated alternative text: CPU Memory Disk Space > 1 year remaining until Disk Space runs out 125K 100K 75K SOK 25K Apr I Apr 9 (New Workload) May I Jun I Aug I Sep I Nov I Dec 1 Jan I Feb 1 Mar I Apr I

Summary:
As you can see the what if tool for removing hosts from a cluster can be very useful.  In my example I was able to show a single host could be removed and still leave remaining resources for the existing workloads.  As always, I hope y’all found this helpful.

One comment

  1. Pingback: What-If in VMware vRealize Operations for VxRail/vSAN Host adds to Cluster - Digital Thought Disruption

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