PramodCV
Enthusiast
Enthusiast

Hi,

Please find the answer to question posted above in the same order.

Answer to Q1
When the tool is run, we will start getting the split stats of network (transmitted + received) and datastore (read + write). Definitely we will be storing more stats and this will have space implications. However, the amount of extra space that will be needed depends on the no. of devices per VM i.e. the no. of VNICs for network and datastores associated with a VM. This is because the split stats are available per VM, per device.
Chargeback publishes a 'Database Sizing Tool (in the form of an Excel sheet)' to estimate the DB size based on the count of VMs, duration, enabled counters. Please refer to the documentation about this guide to estimate the DB size increase.

Answer to Q2
This will also increase/affect db sizing of vCenter as well. So, you need to plan for that as well. Usually, you should not face any problem in CBM/vCenter because of this. In case, if you face any problem, you can revert. Already ran reports in CBM are not affected, but further reports which generates usage/cost for these split counters, will not give any data.
If the setting is reverted the cost /usage report will have only the aggregate stats and not the split stats. There will be *NO* side effects.

Answer to Q3
Yes, The tool needs to be run on each vCenter Server. Even in case of a linked VC configuration every VC maintains its own configurations.

Thanks

Pramod.

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