E2EVC 2015 Berlin SMB Direct Slide Deck

I attended and presented at E2EVC 2015 in Berlin from June 12th to June 14th. The networking was a blast. No “marchitecure” bull shit or vendor fairy tales what so ever and lots of very open discussions on the realities we’re seeing and facing in virtualization and cloud. Most account managers and esoteric presales would die a painful (but fast) death in this environment.

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One session was with my Hyper-V Amigo buddy Carsten Rachfahl and was pure demo extravaganza, so no slides. My own session was “SMB Direct – The Secret Decoder Ring” and was an attempt to position this technology what by looking at the why and where followed by the how by who and when.

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I hope a lot of people had at least a better understanding of SMB Direct, RDMA and DCB. The second aim was to take away the fear many people have of this tech by showcasing it in short demos. Time constraints where a challenge so it was not a 200 level session.

Please download the presentation here if interested.

Enjoy. If you have any concerns or questions, ask, and I’ll try to answer.

KB3058168: Update that enables Windows 8.1 and Windows 8 KMS hosts to activate Windows 10

Unless you’re living under a rock you will know that Windows 10 will be available on July 29th 2015. Microsoft has prepared for this by already making an Update that enables Windows 8.1 and Windows 8 KMS hosts to activate a “later version of Windows”. This must mean Windows 10. I do not know if this means that even the versions after Windows 10 will be activated by a KMS server running this update but it might.

Select the version you need for the KMS server or servers you use and install them.

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Launch the update by launching Windows8.1-KB3058168-x64.msu

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Click “Yes” to install the update

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Install the update

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Restart the KMS Server

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So there you go, you’re ready to to start deploying Windows 10 Enterprise edition which can then be activated by your KMS server when the new client OS is generally available. Good luck.

Closing note: Don’t even bother posting comments where you ask for KMS Server keys or MAK keys for Windows 10. As I’ve stated before, while it might be more fun to join the pirates we’re the navy and as such we don’t condone piracy Winking smile. Got it? GOOD!

Windows Deduplication And Mysterious Folder & File Sizes

There was a brief moment of “this can’t be good” the sys admin looked at the file size of the backup folders and compared it to the size reported for the files. Sure I had told him that Windows inbox deduplication rocked but this had to be too good to be true or deduplication had just eaten all the backup files and he was “toast”. It was neither. But that requires some explanation. The good news is that Windows Data Deduplication combined with a backup product that supports it like VEEAM will save you a ton of money on deduplication licenses some charge and storage costs.

This is what he saw, and what caused the raised eye brow. 12.4TB reduced to 285GB.

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Deduplication can’t be that great, right? Did something go wrong? Checking the properties of ALL selected files themselves did not report anything else but compared to the volume info for used space something seems very wrong. That’s supposed to be 5.34 TB.

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The volume properties report the effective spaces consumed on the volume, so that reflects the true deduplication results. You can confirm this with PowerShell

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A savings rate of 57% and  5.34 TB of actually consumes space (5880575557632 bytes) and an unoptimized size of 12.4 TB.  Just as server manager reports.

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So what is explorer up to at the folder and file level? Nothing, it just can’t show you the complete picture. Windows Data Deduplication stores duplicated chunks into the System Volume Information folder. Windows explorer runs under your account and has no access to that folder and doesn’t report the size of all chunks in there. The only thing it does reports are the non duplicated bits that are left in the source folder. In our case where the backups reside. The result is, as said, raised eyebrows.

The same is true for any other tool actually, like WinDirStat in the blow screenshot.

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When we run this tools as system we get a different picture and you can navigate to the actual ChunkStore and learn more about the internals.

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Presenting at ITProceed 2015 & E2EVC 2015 Berlin on SMB Direct

You cannot afford to ignore SMB3 and it’s capabilities related to storage traffic such as multichannel, RDMA and encryption. SMB Direct over RoCE seems to have a bright future as it continuous to evolve and improve in Windows Server 2106. The need for DCB (PFC and optionally ETS) intimidates some people. But it should not.

I’ll be putting SMB Direct & RoCE into perspective at ITPROCEED | Welcome to THE IT Pro Event of the year! and #E2EVC E2EVC 2015 Berlin, June 12-14, 2015 Berlin, Germany, sharing experiences, tips and demos!  Come see PFC & ETS in action and learn what it can do for you. Storage vendors should most certainly consider supporting all features of SMB 3 natively as a competitive advantage. So Join me for the talk “SMB Direct – The Secret Decoder Ring”.

All these talks are at extremely affordable community driven events to make sure you can attend. The sessions are given by speakers who do this for the community (speakers and attendees do this in their own time and pay for their our own travel/expenses) and who work with these technology in real life and provide feedback to vendors on the issues or opportunities we see. This makes the sessions very interesting and anything but marketing, slide ware or sales pitches. See you there!