Hi everyone.
Let say we have a NET APP Storage array with two Storage processors. These processors are configured as active active. Assume we have multiple paths between ESXI and this storage array.
We want to implement multi path and we would like to use NMP plug-in.
1) Do we have to tell ESXI that Storage array is using active active or it is something ESXI discovers automatically via communication with Storage array?
2) If EXSI does not discover the Storage Mode ( Active/Active or Active/Passive) on its won, does Operator have to tell ESXI via configuration what SATP to use say active active?
Thanks and have a good weekend!!
The rules for the NMP to be used are typically already defined within ESXi by default. So when you connect the storage array and ESXi discovers it, it should typically be configured correctly. I do recommend validating it of course just to make sure. If it hasn't discovered it correctly you can manually override it by setting a claim rule for the system, you need to do this on each host.
Moderator note: Moved to vSphere Storage
The rules for the NMP to be used are typically already defined within ESXi by default. So when you connect the storage array and ESXi discovers it, it should typically be configured correctly. I do recommend validating it of course just to make sure. If it hasn't discovered it correctly you can manually override it by setting a claim rule for the system, you need to do this on each host.
Thanks for the response.
Does ESXI discovers the Storage Mode automatically or we have tell ESXI what mode the Storage array is using via SATP ?
I understand we can ask ESXI to discover Storage but I was not sure it that also entails discovering Storage Mode.
For each storage device managed by NMP, an ESXi host uses a path selection policy (Fixed, Round Robin, Most Recently Used). Just remember the following points: