VSAN Disk Groups - easy one..

[cyberfed2727]

Hello. I have a question that I suspect you all can answer easily.

When working with VSAN Disk Groups do the disk groups need to be created evenly?

For example if I have Disk Group A that contains 1 SSD and 3HDDs and I decide to create Disk Group B does it also have to have 1 SSD and 3HDDs? or could Disk Group B have say 1SSD and 5HDDs?

I am unsure if the number of HDDs contributed has to be equal for each disk group.

Thanks!

[admin · Accepted solution]

Greetings!

Fortunately VSAN is not like traditional RAID Groups. That means, as per your scenario, you can have your Disk Group B with 1 SSD and 5 HDDs.

Regarding your query - "I am unsure if the number of HDDs contributed has to be equal for each disk group." The answer is - It is not necessary that number of HDDs contributed has to be equal for each disk group.

You may want to read in detail about this on blog post - Using differently sized disks in a VSAN environment‌

Also, It is recommended to follow VMware® Virtual SAN™ 6.2 Design and Sizing Guide

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