ESXi 6 Lun Extents

My organization has recently purchase a NetApp SAN

Welcome to the 21st Century! - LOL!

max Lun size in VMware is 15TB

Why ? Is this what you created ? Max LUN Size is 64TB to an ESXi host.

I know using extents is an option but feel very uneasy doing this since if something happens to one Lun, the whole volume goes offline. Am I being overly paranoid?

Paranoia! But you have a right to question, we've had a number of Posts on EE, where a LUN has been deleted, removed, and the WHOLE datastore has then been corrupted!!!

How are other dealing with this issue?

Document it, so the VMware/Storage Team know which LUNs, e.g. LUN 1 + LUN2 = DATASTORE 4...

Are you expanding the existing LUN, or adding another LUN to create the datastore.

Which Netapp SAN are you using?   Are you using 7 mode or cDot?

We have 4 FAS2620 nodes. Also we are using Fiber cables. Our SAN Admin stated he confirmed through support that a max Lun size for NetApp in Vmware is 15TB

https://community.netapp.com/t5/Data-ONTAP-Discussions/VMware-max-LUN-size/td-p/142292


https://www.netapp.com/us/media/tr-4597.pdf

That's a NetApp limitation LUN Size Max 16TB (well OnTap to be correct), if you need larger datastore use Extents.

Just document!

or use NFS.

Any performance issues with using extents?