VSAN VMs thin provisioning query

[ManivelR]

Hi Guys,

I have some doubt on VSAN VMs thin provisioning query.

Im using VSAN 6.7.0 update 1 and lot of Windows/linux VMs,NSX manager/vROPS available.

I created a new storage policy and not added any rule "Object space reservation to zero" in to my storage policy.Which means,all the newly created VMs will be thin provisioning by default.

I guess,without adding this rule,"Object space reservation to zero" in storage policy, all the VMs should be created as a thin provisioning. Am i right?

All the VMs(Windows/Linux VMs) are listed as "thin provisioning",however NSX/vrops(created from OVA) are listed as "thick provisioning lazy zeroed"( i checked from both HTML & flash web client).Is this known bug? Please suggest.

https://www.virtuallyghetto.com/2016/06/heads-up-ovfova-always-deployed-as-thick-on-vsan-when-using-...

Thanks,

Manivel RR

[vpradeep01 · Accepted solution]

Hello Manivel,

Good day !

Please find the answers:

Q

I guess,without adding this rule,"Object space reservation to zero" in storage policy, all the VMs should be created as a thin provisioning. Am i right?

Yes this is correct. By default it would be thin for any VMs provisioned newly on vSAN.

A

All the VMs(Windows/Linux VMs) are listed as "thin provisioning",however NSX/vrops(created from OVA) are listed as "thick provisioning lazy zeroed"( i checked from both HTML & flash web client).Is this known bug? Please suggest.

Yes, this is a known issue. Please refer the below KB to get the VMDKs converted from thick to thin. Applies to 6.7 as well.

https://kb.vmware.com/s/article/2145798

Thanks

[ManivelR]

Thanks so much for your response.