Our vSphere version combined with EMC VNX MCX OE version advices Round Robin as path policy. For RDMs used by a Microsoft Cluster however, Most-Recently-Used is the adviced policy. If a Microsoft Cluster has the incorrect path policy, there is a hughe latency on the RDM. We have noticed that reboot of the ESXi host or […]
MRU
Changing NetApp storage policies from non-ALUA to ALUA
My latest customer was still running on VMware ESX 3.5 and Virtual Center 2.5 and asked me to upgrade their environment. Their whole environment was running on NetApp storage and for ESX there is a change in the Storage Array Type Policy (SATP) and the Path Selection Policy (PSP) when moving from ESX 3.5 to […]