My London Tech Week – 2 ducks in a row

I love London. Well, I like spending time in the UK in general anyhow but London is still a special place. Maybe it’s because it’s the only place in the world where I actually use public transportation (the Underground) without the feeling I need to kill people. If it wasn’t so ridiculously expensive I’d spend a lot more time there or even move. TECH.UNPLUGGED – April 22nd So no need to say I like going back whenever I have a reason. This time I have two! First of all I will be speaking at TECH.UNPLUGGED on april 22nd. Tech.Unplugged is

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So now you’re a vExpert?

aToday you’ll see plenty of blogposts about the vExpert 2015 nominations. I am proud to say I’ve got a hat-trick now, being recognized as one for the 3rd year in a row. Instead of just dancing around with the certificate in your/my hand, I urge you to now be grateful with that piece of paper and go do something with it! Go earn another one. But as you already know how to do that, here’s my message to your employer! You are a Startup I think if you are a startup in the VMware realm, you should have at least

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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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My checkbox is bigger than your checkbox!

This morning Josh Odgers from Nutanix published a blogpost where he rightfully pointed out that having support for a specific feature(set) doesn’t necessarily mean the same for all vendors (link). In this case we are talking about NAS-VAAI. The example given is that there are a lot of vendors that have support for NAS-VAAI but Nutanix is the only one that supports, and is certified for all primitives. Point well taken Josh and luckily there is always the HCL to check that out as you showed. note: the same applies to VAAI for block primitives! Of course when one rep

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vSphere Storage Array FEEDBACK requested

I am working on a lengthy post/presentation related to UNMAP on all levels of the stack (from Guest Volume to Physical disk). During my research I have noticed that there is no way for me to find out through the VMware HCL which arrays support T10 UNMAP. Therefor I need your help. If you find 5 minutes of your time I’d love to get a few details from your array. Vendor + Model + Firmware vSphere Version VAAI Status (screenshot 2) Thin Provisioning Status (screenshot 2) Delete Status (screenshot 1) Screenshot 1: Look up datastore device name: # esxcli storage

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Is the End of the Federation the real question?

Sometimes you get this one single thought that triggers a whole blogpost. This week someone asked me what’s to become of the EMC Federation when Joe Tucci is going on his retirement in 2015. To give this some background; when the EMC Federation got it’s third leg, being Pivotal, next to VMware and EMC itself, there were some chairs being shifted. Once Pat Gelsinger made the move as COO of EMC to become CEO at VMware (2012), Paul Maritz moved into EMC to later become CEO of the third leg Pivotal (2013). In that light Joe Tucci said he wouldn’t

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