vSphere 6 NFS4.1 does not include parallel striping!

Oh how happy are we that VMware FINALLY decided to add support for NFS4.1 especially since the NFS3 client’s major problem has always been single-session connectivity. HOWEVER; going over Chris Wahl’s – extensive – coverage on this news item I did miss a key ingredient we were actually waiting for in NFS4.1: support for pNFS (parallel NFS). Chris mentions the following improvements from vSphere 5.5 to 6: Authentication with Kerberos In-band, mandatory, and stateful server side locking Session trunking (true NFS multipathing) Greater error recovery So what does this session trunking do for us and what not?  I tried to simplify the story

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RDP on View4.5 versus PCoIP on View5

CASE:  VDI environment at customer site with an average user base of 300 clients. Issues: performance (duuuh!) Consultancy: January 2011: dear customer, buy more spindles please! January 2011: dear customer, can we please change from view4.5 to 4.6 so we can use PCoIP? The customer: January 2011: $$$$$ …. NO February 2011: $$$$$ …. NO March 2011: … December 2011: please solve our performance issues before the end of the year! Consultancy: (thoughts) ARE YOU KIDDING ME? (answer) yes mr customer, we will give you our own hardware and prove you wrong. On the other hand, we are allready one year further so we offer

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Equallogic Multipath driver for vSphere (MEM) installation

vSphere is known to work out-of-the-box. Dell Equallogic does this too. But as it is not Microsoft, nobody stops at next-next-finish 😉 Whats not to forget? Multipathing, multipathing and multipathing. Let’s start by showing what a mounted Equallogic volume looks like on a nex-next-finish installation: You should have noticed that vSphere recognizes it’s an Equallogic volume (Array Type) and found 4 active channels to the target (paths). It does not however take full advantage of those available paths. In an environment where your array supports Round-Robin (HP EVA, Lefthand, DELL MD3000,….) you could just set the setting for that volume

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