NMP latency best practices with VMAX and PowerMax

...continued from my previous post. So at this point you’re probably asking, do I use this new feature and if so when do I use it? Well there is a perfect use case for type=latency and that is uniform vSphere Metro Storage Clusters using SRDF/Metro. Recall that uniform configurations, or cross-connect, zone and map hosts... Continue Reading →

vSphere 6.7 U1 & NMP latency

In vSphere 6.7 VMware released, albeit without fanfare, a new type of NMP, latency. Most customers probably never even knew it was there - I was among them until a colleague told me about it. In Update 1 of 6.7 released today here, they've supplied the documentation to go along with the feature so we'll... Continue Reading →

SRM reprotect with SRDF/Metro and async leg

Our SRDF SRA supports many configurations - 2 site, 3 site, STAR, SRDF/Metro - well you get the idea. For the majority of these environments, all SRM functions are supported. That includes test, planned migration, failover, failback and reprotect. There are a couple of specific, 3 site setups where we cannot support reprotect. This comes... Continue Reading →

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