Monthly Archives: July 2015

3PAR StoreServ 7000 – Peer Persistence links

Howdy all,

I have been testing a 3PAR Peer Persistence setup using two 3PAR StoreServ 7200c, dual interconnected fabrics between sites and a multi-site VMware cluster (although only one node per site).

It works flawlessly!

Being able to take a array offline (disruptively, removing power to the controller shelf) and the only thing that happens is about ~10 second “delay” (while Peer Persistence fails the VMFS volumes over) for the virtual machines is pretty awesome.

We are still missing VVOL support for replicated volumes (and vMSC) but hopefully it will come later this year.

Here are the most important links on Peer Persistence: (KB article 2055904)
HP’s own Implementing vSphere Metro Storage Cluster using HP 3PAR Peer Persistence

And for a added bonus – HP 3PAR SSMC 2.1 makes Peer Persistence configuration easy as 1-2-3 by

The whole thing takes about 1 hour to configure when you know what you are doing and adding a new volume to the Peer Persistence configuration is a snap.


3PAR StoreServ 7000 – Zoning best practices

Howdy all,

Recently I started working with HP 3PAR StoreServ 7000 series storage. While installing them I was looking for the best-practice zoning information and seemed to find conflicting information. But after reading this document you see that HP recommends either:

  1. One initiator to one target
  2. One initiator to multiple targets

Check out the section called “FC hosts zoning” and things should be pretty clear! 🙂