Integrating Trendnet IP Cameras with my homelab

What do you get when you take an IT Systems Engineer with more time on his hands than usual and an unfinished home project list that isn’t getting any shorter?

You get this:

Daytime
My home automation/Internet of Things ‘play’

That’s right. I’ve stood-up some IP surveillance infrastructure at my home, not because I’m a creepy Big Brother type with a God-Complex, rather:

  1. Once my 2.5 year old son figured out how to unlock the patio door and bolt outside, well, game over boys and girls….I needed some ‘insight’ and ‘visibility’ into the Child Partition’s whereabouts pronto and chasing him while he giggles is fun for only so long
  2. My home is exposed on three sides to suburban streets, and it’s nice to be able to see what’s going on outside
  3. I have creepy Big Brother tendences and/or God complex

I had rather simple rules for my home surveillance project:

  • IP cameras: ain’t no CCTV/600 lines of resolution here, I wanted IP so I could tie it into my enterprise home lab
  • Virtual DVR, not physical: Already have enough pieces of hardware with 16 cores, 128GB of RAM, and about 16TB of storage at home.
  • No Wifi, Ethernet only: Wifi from the camera itself was a non-starter for me because 1) while it makes getting video from the cameras easier, it limits where I can place them both from a power & signal strength perspective 2) Spectrum & bandwidth is limited & noisy at distance-friendly 2.4GhZ, wide & open at 5ghz, but 5 has half the range of 2.4. For those reasons, I went old-school: Cat5e, the Reliable Choice of Professionals Evereywhere
  • Active PoE: 802.3af as I already own about four PoE injectors and I’ve already run Cat5e all over the house
  • Endpoint agnostic:  In the IP camera space, it’s tough to find an agnostic camera system that will work on any end-device with as little friction as possible. ONVIF is, I suppose, the closest “standard” to that, and I don’t even know what it entails. But I know what I have: Samsung GS6, iPhone 6, a Windows Tiered Storage box, four Hyper-V hosts, System Center, an XBox One and 100 megabit internet connection.
  • Directional, no omni-PTZ required: I could have saved money on at least one corner of my house by buying a domed, movable PTZ camera rather than use 2 directionals, but 1) this needed to work on any end-point and PTZ controls often don’t

And so, over the course of a few months, I picked up four of these babies:

TV-IP310PI_d02_2

Trendnet TV-IP310PI

Design

I liked these cameras from the start. They’re housed in a nice, heavyweight steel enclosure, have a hood to shade the lens and just feel solid and sturdy. Trendnet markets them as outdoor cameras, and I found no reason to dispute that.

My one complaint about these cameras is the rather finicky mount. The camera can rotate and pivot within the mount’s attachment system, but you need to be careful here as an ethernet cable (inside of a shroud) runs through the mount. Twist & rotate your camera too much, and you may tear your cable apart.

And while the mount itself is steel and needs only three screws to attach, the interior mechanism that allows you to move the camera once mounted is cheaper. It’s hard to describe and I didn’t take any pictures as I was cursing up a storm when I realized I almost snapped the cable, so just know this: be cognizant that you should be gentle with this thing as you mount it and then as you adjust it. You only have to do that once, so take your time.

Imaging and Performance:

ircam
Nighttime

Trendnet says the camera’s sensor & processing is capable of pushing out 1080p at 30 frames per second, but once you get into one of these systems, you’ll notice it can also do 2560×1440, or QHD resolutions. Most of the time, images and video off the camera are buttery smooth, and it’s great.

I’m not sharp enough on video and sensors to comment on color quality, whether F 1.2 on a camera like this means the same as it would on a still DSLR, or understand IR Lux, so let me just say this: These cameras produce really sharp, detailed and wide-enough (70 degrees) images for me, day or night. Color seems right too; my lawn is various hues of brown & green thanks to the heat and California drought, and my son’s colorful playthings that are scattered all over do in indeed remind me of a clown’s vomit. And at night, I can see far enough thanks to ambient light. Trendnet claims 100 foot IR-assisted viewing at night. I see no reason to dispute that.

Let the camera geeks geek out on teh camera; this is an enterprise tech blog, and I’ve already talked abou the hardware, so let’s dig into the software-defined & networking bits that make this expensive project worthwhile.

Power & Networking

These cameras couldn’t be easier to connect and configure, once you’ve got the power & cabling sorted out. The camera features a 10/100 ethernet port; on all four of my cameras, that connects to four of Trendnet’s own PoE injectors. All PoE injectors are inside my home; I’d rather extend ethernet with power than put a fragile PoE device outside. The longest cable run is approximately 75′, well within the spec. Not much more to say here other than Trendnet claims the cameras will use 5 watts maximum, and that’s probably at night when the IR sensors are on.

From each injector, a data cable connects to a switch. In my lab, I’ve got two enterprise-level switches.

One camera, the garage/driveway camera, is plugged into trunked, native vlan 410 port on my 2960s in the garage,

The other switch is a small CIsco SG-300 10p. The three other cameras connect to it. The SG-300 serves the role of access-layer switch and has a 3x1GbE port-channel back to the 2960s. This switch wasn’t getting used enough in my living room, so I moved it to my home office, where all ports are now used. Here’s my home lab environment, updated with cameras:

The Homelab as it stands today
The Homelab as it stands today

Like any other IP cam, the Trendnet will obtain an IP off your DHCP server. Trendnet includes software with the camera that will help you find/provision the camera on your network, but I just saved a few minutes and looked in my DHCP table. As expected, the cameras all received a routable IP, DNS, NTP and other values from my DHCP.

Once I had the IP, it was off to the races:

  • Set DHCP reservation
  • Verify an A record was created DNS so I could refer to the cameras by names rather than IP
  • Login, configure new password, update firmware, rename camera, turn-off UPNP, turn-off telnet
  • Adjust camera views

Software bits – Server Side

Trendnet is nice enough to include a fairly robust and rebadged version of Luxriot camera software, which has two primary components: Trendnet View Pro (Fat Client & Server app) and VMS Broacast server, an http server. Trendnet View Pro is a server-like application that you can install on your PC to view, control, and edit all your cameras. I say server-like because this is the free-version of the software, and it has the following limits:

  • Cannot run as a Windows Service
  • An account must be logged in to ‘keep it running’
  • You can install View Pro on as many PCs as you like, but only one is licensed to receive streaming video at a time

Upgrading the free software to a version that supports more simultaneously viewers is steep: $315 to be exact.

Smoking the airwaves with my beater kiosk PC in the kitchen. This is the TrendNet View client, limited to one viewer at a time
Smoking the airwaves with my beater kiosk PC in the kitchen. This is the TrendNet View client, limited to one viewer at a time

Naturally, I went looking for an alternative, but after dicking around with Zoneminder & VLC for awhile (both of which work but aren’t viewable on the XBox), I settled on VMS Broadcast server, the http component of the free software.

Just like View Pro, VMS Broadcast won’t run as a service, but, well, sysinternals!

So after deliberating a bit, I said screw it, and stood-up a Windows 8.1 Pro VM on a node in the garage. The VM is Domain-joined, which the Trendnet software ignored or didn’t flag, and I’ve provisioned 2 cores & 2GB of RAM to serve, compress, and redistribute the streams using the Trendnet fat client server piece as well as the VMS web server.

Client Side

On that same Windows 8.1 VM, I’ve enabled DLNA-sharing on VLAN 410, which is my trusted wireless & wired internal network. The thinking here was that I could redistribute via DLNA the four camera feeds into something the XBox One would be able to show on our family’s single 48″ LCD TV in the living room via the Media App. So far, no luck getting that to work, though IE on the XBox One will view and play all four feeds from the Trendnet web server, which for the purposes of this project, was good enough for me.

Additionally, I have a junker Lenovo laptop (Ideapad, 11″) that I’ve essentially built into a Kiosk PC for the kitchen/dining area, the busiest part of the house. This PC automatically logs in, opens the fat client and loads the file to view the four live feeds. And it does this all over wifi, giving instant home intel to my wife, mother-in-law, and myself as we go about our day.

Finally, both the iOS & Android devices in my house can successfully view the camera streams, not from the server, but directly (and annoyingly) from the cameras themselves.

The Impact of RTSP 1080p/30fps x 4 on Home Lab 

I knew going into this that streaming live video from four quality cameras 24×7 would require some serious horsepower from my homelab, but I didn’t realize how much.

From the compute side of things, it was indeed alot. The Windows 8.1 VM is currently on Node2, a Xeon E3-1241v3 with 32GB of RAM.

Typically Node2’s physical CPU hovers around 8% utilization as it hosts about six VMs in total.

With the 8.1 VM serving up the streams as well as compressing them with a variable bit rate, the tax for this DIY Home surveillance project was steep: Node2’s CPU now averages 16% utilized, and I’ve seen it hit 30%. The VM itself is above 90% utilization.hosts

More utilization = more worries about thermal as Node2 sits in the garage. In southern California. In the summertime.

Ambient air temperature in my garage over the last three weeks.
Ambient air temperature in my garage over the last three weeks.

Node2’s average CPU temperature varies between 22c and 36c on any given warm day in the garage (ambient air is 21c – 36c). But with the 8.1 VM, Node2 has hit as high as 48c. Good thing I used some primo thermal paste!

trsp

All your Part 15 FCC Spectrum are belong to me, on channel 10 at least
All your Part 15 FCC Spectrum are belong to me, on channel 10 at least

From the network side, results have been interesting. First, my Meraki is a champ. The humble MR-18 802.11n access point doesn’t break a sweat streaming the broadcast feed from the VM to the Lenovo Kiosk laptop in the kitchen. Indeed, it sustains north of 21mb/s as this graph shows, without interrupting my mother in law’s consumption of TV broadcasts over wifi (separate SSID & VLAN, from the SiliconDust TV tuner), nor my wife’s Facebooking & Instagramming needs, nor my own tests with the Trendnet application which interfaces with the cameras directly.

Meraki’s analysis says that this makes the 2.4ghz spectrum in my area over 50% utilized, which probably frustrates my neighbors. Someday perhaps I’ll upgrade the laptop to a 5ghz radio.

vSwitch, the name of my Converged SCVMM switch, is showing anywhere from 2megabits to 20 megabits of Tx/Rx for the server VM. Pretty impressive performance for a software switch!network

Storage-wise, I love that the Trendnets can mount an SMB share, and I’ve been saving snapshots of movement to one of the SMB shares on my WindowsSAN box.

I am also using Trendnet’s email alerting feature to take snapshots and email them to me whenever there’s motion in a given area. Which is happening a lot now as my 2 year old walks up to the cameras, smiles and says “Say cheeeese!”

All in all, a tidy & fun sub-$1000 project!

It’s been awhile since I posted about my home lab, Daisettalabs.net, but rest assured, though I’ve been largely radio silent on it, I’ve been busy.

If 2013 saw the birth of Daisetta Labs.net, 2014 was akin to the terrible twos, with some joy & victories mixed together with teething pains and bruising.

So what’s 2015 shaping up to be?

Well, if I had to characterize it, I’d say it’s #LabGlory, through and through. Honestly. Why?

I’ve assembled a home lab that’s capable of simulating just about anything I run into in the ‘wild’ as a professional. And that’s always been the goal with my lab: practicing technology at home so that I can excel at work.

Let’s have a look at the state of the lab, shall we?

Hardware & Software

Daisetta Labs.net 2015 is comprised of the following:

  • Five (5) physical servers
  • 136 GB RAM
  • Sixteen (16) non-HT Cores
  • One (1) wireless access point
  • One (1) zone-based Firewall
  • Two (2) multilayer gigabit switches
  • One (1) Cable modem in bridge mode
  • Two (2) Public IPs (DHCP)
  • One (1) Silicon Dust HD
  • Ten (10) VLANs
  • Thirteen (13) VMs
  • Five (5) Port-Channels
  • One (1) Windows Media Center PC

That’s quite a bit of kit, as a former British colleague used to say. What’s it all do? Let’s dive in:

Physical Layout

The bulk of my lab gear is in my garage on a wooden workbench.

Nodes 2-4, the core switch, my Zywall edge device, modem, TV tuner, Silicon Dust device and Ooma phone all reside in a secured 12U, two post rack I picked up on ebay about two years ago for $40. One other server, core.daisettalabs.net, sits inside a mid-tower case stuffed with nine 2TB Hitachi HDDs and five 256GB SSDs below the rack.

Placing my lab in the garage has a few benefits, chief among them: I don’t hear (as many) complaints from the family cluster about noise. Also, because it’s largely in the garage, it’s isolated & out of reach of the Child Partition’s curious fingers, which, as every parent knows, are attracted to buttons of all types.

Power & Thermal

Of course you can’t build a lab at home without reliable power, so I’ve got one rack-mounted APC UPS, and one consumer-grade Cyberpower UPS for core.daisettalabs.net and all the internet gear.

On average, the lab gear in the garage consumes about 346 watts, or about 3 amps. That’s significant, no doubt, costing me about $38/month to power, or about 2/3rds the cost of a subscription to IT Pro TV or Pluralsight. 🙂

Thermals are a big challenge. My house was built in 1967, has decent insulation and holds temperature fairly well in the habitable parts of the space. But none of that is true about the garage, where my USB lab thermometer has recorded temps as low as 3C last winter and as high as 39c in Summer 2014. That’s air-temperature at the top of the rack, mind you, not at the CPU.

One of my goals for this year is to automate the shutdown/powerup of all node servers in the Garage based on the temperature reading of the USB thermometer. The $25 thermometer is something I picked up on Amazon awhile ago; it outputs to .csv but I haven’t figured out how to automate its software interface with powershell….yet.

Anyway, here’s my stack, all stickered up and ready for review:

IMG_20150329_214535914

Beyond the garage, the Daisetta Lab extends to my home’s main hallway, the living room, and of course, my home office.

Here’s the layout:

homelab2015

Compute

On the compute side of things, it’s almost all Haswell with the exception of core and node3:

[table]

Server, Architecture, CPU, Cores, RAM, Function, OS, Motherboard

Core, AMD A-series, A8-5500, 2, 8GB, Tiered Storage Spaces & DC/DHCP/DNS, Server 2012 R2, Gigabyte D4

Node1, Haswell, i7-4770k, 4, 32GB, Main PC/Office/VM host/storage, 2012R2, Supermicro X10SAT

Node2, Haswell, Xeon E3-1241, 4, 32GB, Cluster node, 2012r2 core, Supermicro X10SAF

Node3, Ivy Bridge, i7-2600, 4, 32GB, Cluster node, 2012r2 core, Biostar

Node4, Haswell, i5-4670, 4, 32GB, Cluster node/storage, 2012r2 core, Asus

[/table]

I love Haswell for its speed, thermal properties and affordability, but damn! That’s a lot of boxes, isn’t it? Unfortunately, you just can’t get very VM dense when 32GB is the max amount of RAM Haswell E3/i7 chipsets support. I love dynamic RAM on a VM as much as the next guy, but even with Windows core, it’s been hard to squeeze more than 8-10 VMs on a single host. With Hyper-V Containers coming, who knows, maybe that will change?

Node1, the pride of the fleet and my main productivity machine, boasting 2x850 Pro SSDs in RAID 0, an AMD FirePro, and Tiered Storage Spaces
Node1, the pride of the fleet and my main productivity machine, boasting 2×850 Pro SSDs in RAID 0, an AMD FirePro, and Tiered Storage Spaces

While I included it in the diagram, TVPC3 is not really a lab machine. It’s a cheap Ivy Bridge Pentium with 8GB of RAM and 3TB of local storage. It’s sole function in life is to decrypt the HD stream it receives from the Silicon Dust tuner and display HGTV for my mother-in-law with as little friction as possible. Running Windows 8.1 with Media Center, it’s the only PC in the house without battery backup.

Physical Network
About 18 months ago, I poured gallons of sweat equity into cabling my house. I ran at least a dozen CAT-5e cables from the garage to my home office, bedrooms, living room and to some external parts of the house for video surveillance.
I don’t regret it in the least; nothing like having a reliable, physical backbone to connect up your home network/lab environment!

Meet my underlay
Meet my underlay

At the core of the physical network lies my venerable Cisco 2960S-48TS-L switch. Switch1 may be a humble access-layer switch, but in my lab, the 2960S bundles 17 ports into five port channels, serves as my DG, routes with some rudimentary Layer 3 functions ((Up to 16 static routes, no dynamic route features are available)) and segments 9 VLANs and one port-security VLAN, a feature that’s akin to PVLAN.

Switch2 is a 10 port Cisco Small Business SG-300 running at Layer 3 and connected to Switch1 via a 2-port port-channel. I use a few ports on switch2 for the TV and an IP cam.

On the edge is redzed.daisettalabs.net, the Zyxel USG-50, which I wrote about last month.

Connecting this kit up to the internet is my Motorola Surfboard router/modem/switch/AP, which I run in bridge mode. The great thing about this device and my cable service is that for some reason, up to two LAN ports can be active at any given time. This means that CableCo gives me two public, DHCP addresses, simultaneously. One of these goes into a WAN port on the Zyxel, and the other goes into a downed switchport

Love Meraki's RF Spectrum chart!
Love Meraki’s RF Spectrum chart!

Lastly, there’s my Meraki MR-16, an access point a friend and Ubiquity networks fan gave me. Though it’s a bit underpowered for my tastes, I love this device. The MR-16 is trunked to switch1 and connects via an 802.3af power injector. I announce two SSIDs off the Meraki, both secured with WPA2 Personal ((WPA2 Enterprise is on the agenda this year)). Depending on which SSID you connect to, you’ll end up on the Device or VM VLANs.

Virtual Network

The virtual network was built entirely in System Center VMM 2012 R2. Nothing too fancy here, with multiple Gigabit adapters per physical host, one converged logical vSwitch and a separate NIC on each host fronting for the DMZ network:

Nodes 1, 2 & 4 are all Haswell, and are clustered. Node3 is standalone.

Thanks to VMM, building this out is largely a breeze, once you’ve settled on an architecture. I like to run the cmdlets to build the virtual & logical networks myself, but there’s also a great script available that will build a converged network for you.

A physical host typically looks like this (I say typically because I don’t have an equal number of adapters in all hosts):

I trust VLANs and VMM's segmentation abilities, but chose to build what is in effect air-gapped vSwitch for the DMZ/DIA networks
I trust VLANs and VMM’s segmentation abilities, but chose to build what is in effect air-gapped vSwitch for the DMZ/DIA networks

We’re already several levels deep in my personal abstraction cave, why stop here? Here’s the layout of VM Networks, which are distinguished from but related to logical networks in VMM:

labnet13

I get a lot of questions on this blog about jumbo frames and Hyper-V switching, and I just want to reiterate that it’s not that hard to do, and look, here’s proof:

jumbopacket

Good stuff!

Storage

And last, and certainly most-interestingly, we arrive at Daisetta Lab’s storage resources.

My lab journey began with storage testing, in particular ZFS via NexentaCore (Illumos), NAS4Free and Solaris 11. But that’s ancient history; since last summer, I’ve been all Windows, all the time in my lab, starting with SAN.Daisettalabs.net ((cf #StorageGlory : 30 Days on a Windows SAN)).

Now?

Well, I had so much fun -and importantly so few failures/pains- with Microsoft’s Tiered Storage Spaces that I’ve decided to deploy not one, or even two, but three Tiered Storage Spaces. Here’s the layout:

[table]Server, #HDD, #SSD, StoragePool Capacity, StoragePool Free, #vDisks, Function

Core, 9, 6, 16.7TB, 12.7TB, 6 So far, SMB3/iSCSI target for entire lab

Node1,2, 2, 2.05TB, 1.15TB,2, SMB3 target for Hyper-V replication

Node4,3,1, 2.86TB, 1.97TB,2, SMB3 target for Hyper-V replication

[/table]

I have to say, I continue to be very impressed with Tiered Storage Spaces. It’s super-flexible, the cmdlets are well-documented, and Microsoft is iterating on it rapidly. More on the performance of Tiered Storage Spaces in a subsequent post.

Thanks for reading!

More than good hygiene : applying a proper cert to my Nimble array

So one of my main complaints about implementing a cost-effective Nimble Storage array at my last job was this:

Who is Jetty Mortbay and why does he want inside my root CA store?
Who is Jetty Mortbay and why does he want inside my root CA store?

I remarked back in April about this unfortunate problem in a post about an otherwise-flawless & easy Nimble implementation:

The SSL cert situation is embarrassing and I’m glad my former boss hasn’t seen it. Namely that situation is this: you can’t replace the stock cert, which, frankly looks like something I would do while tooling around with OpenSSL in the lab.

I understand this is fixed in the new 2.x OS version but holy shit what a fail.

Well, fail-file no more,  because my new Nimble array at my current job has been measured and validated by the CA Gods:

verified
Green padlocks. I want green padlocks everywhere

Oh yeah baby. Validated in Chrome, Firefox and IE. And it only cost me market rates for a SAN certificate from a respected CA, a few hours back ‘n forth with Nimble, and only a few IT McGuyver-style tricks to get this outcome.

Now look. I know some of my readers are probably seeing this and thinking…”But that proves nothing. A false sense of security you have.”

Maybe you’re right, but consider.

I take a sort of Broken Windows Theory approach to IT. The Broken Windows Theory, if you’re not familiar with it, states that:

Under the broken windows theory, an ordered and clean environment – one which is maintained – sends the signal that the area is monitored and that criminal behavior will not be tolerated. Conversely, a disordered environment – one which is not maintained (broken windows, graffiti, excessive litter) – sends the signal that the area is not monitored and that one can engage in criminal behavior with little risk of detection.

Now I’m not saying that adding a proper certificate to my behind-the-firewall Nimble array so that Chrome shows me Green Padlocks rather than scary warnings is akin to reducing violent crime in urban areas. But I am saying that little details, such as these, ought to be considered and fixed in your environment.

Why? Well, somehow fixing even little things like this amount to something more than just good hygiene, something more than just ‘best practice.’

Ultimately, we infrastructurists are what we build, are we not? Even little ‘security theater’ elements like the one above are a reflection on our attention to detail, a validation of our ability to not only design a resilient infrastructure on paper at the macro level, but to execute on that design to perfection at the micro level.

It shows we’re not lazy as well, that we care to repair the ‘broken windows’ in our environment.

And besides: Google (and Microsoft & Mozilla & Apple) are right to call out untrusted certificates in increasingly disruptive & work-impairing ways.

*If you’re reading this and saying: Why don’t you just access the array via IP address, well, GoFQDNorGoHomeSon.com

Going full Windows 10 Server in the Lab, part 1

So many new goodies in Windows Server 10.

So little time to enjoy them.

Highlights so far:

  • Command line transparency is awesome. Want the same in my Powershell windows
  • Digging the flat look of my Windows when they are piled atop one another. THere’s a subtle 3d effect (really muted shadows I think) that helps to highlight Window positions and focus. Nice work UI team
  • Server 10 without Desktop mode looks just about 100% like Server 2012 R2. So yeah, if you’re using your PC as a server, definitely install the Desktop mode

On the agenda for today:

  • Build what has to be one of the few Windows Server 10 Hyper-V clusters
  • Install the new VMM & System Center
  • Testing out the new Network Controller role on a 1U AMD-powered server I’ve had powered-off but ready for just this moment (never got around to building a Server 2012 R2 Network Virtualization Gateway server)
  • Maybe, just maybe, upgrading the two Domain Controllers and raising forest/domain functional level to “Technical Preview”, if it’s even possible.

What won’t be upgraded in the short term:

  • San.daisettalabs.net, the Tiered Storage box that hosts my SMB 3 shares as well as several iSCSI .vhdx drives
  • The VM hosting SQL 2012 SP2, IPAM, and other roles
  • The TV computer, which is running Windows 8.1 Professional with Media Center Edition. Yes, it’s a lab, but even in a lab environment, television access is considered mission critical

More later.

Tales from the Hot Lane

A few brief updates & random thoughts from the last few days on all the stuff I’ve been working on.

Refreshing the Core at work: Summer’s ending, but at work, a new season is advancing, one rack unit at a time. I am gradually racking up & configuring new compute, storage, and network as it arrives; It Is Not About the Hardware™, but since you were wondering: 64 Ivy Bridge cores and about 512GB RAM, 30TB of storage, and Nexus 3k switching.

Cisco_logoAhh, the Nexus line. Never had the privilege to work on such fine switching infrastructure. Long time admirer, first-time NX-OS user. I have a pair of them plus a Layer 3 license so the long-term thinking involves not just connecting my compute to my storage, but connecting this dense stack northbound & out via OSPF or static routes over a fault-tolerant HSRP or VRRP config.

To do that, I need to get familiar with some Nexus-flavored acronyms that aren’t familiar to me: virtual port channels (VPC), Control Plane policy (COPP), VRF, and oh-so-many-more. I’ll also be attempting to answer the question once and for all: what spanning tree mode does one use to connect a Nexus switch to a virtualization host running Hyper-V’s converged switching architecture? I’ve used portfast in the lab on my Catalyst, but the lab switch is five years old, whereas this Nexus is brand new. And portfast never struck me as the right answer, just the easy one.

To answer those questions and more, I have TAC and this excellent tome provided gratis by the awesome VAR who sold us much of the equipment.

Into the vCPU Blender goes Lync: Last Friday, I got a call from my former boss & friend who now heads up a fast-growing IT department on the coast. He’s been busy refreshing & rationalizing much of his infrastructure as well, but as is typical for him, he wants more. He wants total IT transformation, so as he’s built out his infrastructure, he laid the groundwork to go 100% Microsoft Lync 2013 for voice.

Yeah baby. Lync 2013 as your PBX, delivering dial tone to your endpoints, whether they are Bluetooth-connected PC headsets, desk phones, or apps on a mobile.

Forget software-defined networking. This is software-defined voice & video, with no special server hardware, cloud services, or any other the other typical expensive nonsense you’d see in a VoIP implementation.

If Lync 2013 as PBX is not on your IT Bucket List, it should be. It was something my former boss & I never managed to accomplish at our previous employer on Hyper-V.

Now he was doing it alone. On a fast VMware/Nexus/NetApp stack with distributed vSwitches. And he wanted to run something by me.

So you can imagine how pleased I was to have a chat with him about it.

He was facing one problem which threatened his Go Live date: Mean Opinion Score, or MOS, a simple 0-5 score Lync provides to its administrators that summarizes call quality. MOS is a subset of a hugely detailed Media Quality Summary Report, detailed here at TechNet.

thMy friend was scoring a .6 on his MOS. He wanted it to be at 4 or above prior to go-live.

So at first we suspected QoS tags were being stripped somewhere between his endpoint device and the Lync Mediation VM. Sure enough, Wireshark proved that out; a Distributed vSwitch (or was it a Nexus?) wasn’t respecting the tag, resulting in a sort of half-duplex QoS if you will.

He fixed that, ran the test again, and still: .6. Yikes! Two days to go live. He called again.

That’s when I remembered the last time we tried to tackle this together. You see, the Lync Mediation Server is sort of the real PBX component in Lync Enterprise Voice architecture. It handles signalling to your endpoints, interfaces with the PSTN or a SIP trunk, and is the one server workload that, even in 2014, I’d hesitate making virtual.

My boss had three of them. All VMs on three different VMware hosts across two sites.

I dug up a Microsoft whitepaper on virtualizing Lync, something we didn’t have the last time we tried this. While Redmond says Lync Enterprise Voice on top of VMs can work, it’s damned expensive from a virtualization host perspective. MS advises:

  • You should disable hyperthreading on all hosts.
  • Do not use processor oversubscription; maintain a 1:1 ratio of virtual CPU to physical CPU.
  • Make sure your host servers support nested page tables (NPT) and extended page tables (EPT).
  • Disable non-uniform memory access (NUMA) spanning on the hypervisor, as this can reduce guest performance.

Talk about Harshing your vBuzz. Essentially, building Lync out virtually with Enterprise Voice forces you to go sparse on your hosts, which is akin to buying physical servers for Lync. If you don’t, into the vCPU blender goes Lync, and out comes poor voice quality, angry users, bitterness, regret and self-punishment.

Anyway, he did as advised, put some additional vCPU & memory reservations in place on his hosts, and yesterday, whilst I was toiling in the Hot Lane, he called me from Lync via his mobile.

He’s a married man just like me, but I must say his voice sounded damn sexy as it was sliced up into packets, sent over the wire, and converted back to analog on my mobile’s speaker. A virtual chest bump over the phone was next, then we said goodbye.

Another Go Live Victory (by proxy). Sweet.

Azure Outage: Yesterday’s bruising hours-long global Azure outage affected Virtual Machines, storage blobs, web services, database services and HD Insight, Microsoft’s service for big data crunching. As it unfolded, I navel-gazed, when I felt like helping. There was literally nothing I could do. Had I some crucial IaaS or PaaS in the Azure stack, I’d be shit out of luck, just like the rest. I felt quite helpless; refreshing Mary Jo’s pageyellow-exclamation-mark-in-triangle-md and the Azure dashboard didn’t help. I wondered what the problem was; it’s been a difficult week for Microsofties whether on-prem or in Azure. Had to be related to the update cycle, I thought.

On the plus side, Azure Active Directory services never went down, nor did several other services. Office 365 stayed up as well, though it is built atop separate-but-related infrastructure in my understanding.

Lastly, I pondered two thoughts: if you’re thinking of reducing your OpEx by replacing your DR strategy with an Azure Site Recovery strategy, does this change your mind? And if you’re building out Azure as your primary IaaS or PaaS, do you just accept such outages or do you plan a failback strategy?

Labworks : Towards a 100% Windows-defined Daisetta Lab: What’s next for the Daisetta Lab? Well, I have me an AMD Duron CPU, a suitable motherboard, a 1U enclosure with PSU, and three Keepin’ it RealTek NICs. Oh, I also have a case of the envies, envies for the VMware crowd and their VXLAN and NSX and of course VMworld next week. So I’m thinking of building a Network Virtualization Gateway appliance. For those keeping score at home, that would mean from Storage to Compute to Network Edge, I’d have a 100% Windows lab environment, infused with NVGRE which has more use cases than just multi-tenancy as I had thought.

Stack Builders ‘R Us

This is a really lame but (IMHO) effective drawing of what I think of as a modern small/medium business enterprise ‘stack’:

stack

As you can see, just about every element of a modern IT is portrayed.

Down at the base of the pyramid, you got your storage. IOPS, RAID, rotational & ssd, snapshots, dedupes, inline compression, site to site storage replication, clones and oh me oh my…all the things we really really love are right here. It’s the Luntastic layer and always will be.

Above that, your compute & Memory. The denser the better, 2U Pizza Boxes don’t grow on trees and the business isn’t going to shell out more $$$ if you get it wrong.

Above that, we have what my networking friends would call the “Underlay network.” Right. Some cat 6, twinax, fiber, whatever. This is where we push some packets, whether to our storage from our compute, northbound out to the world, southbound & down the stack, or east/west across it. Leafs, spines, encapsulation, control & data planes, it’s all here.

And going higher -still in Infrastructure Land mind you- we have the virtualization layer. Yeah baby. This is what it’s all about, this is the layer that saved my career in IT and made things interesting again. This layer is designed to abstract all that is beneath it with two goals in mind: cost savings via efficiency gains & ease of provisioning/use.

And boy,has this layer changed the game, hasn’t it?

So if you’re a virtualization engineer like I am, maybe this is all you care about. I wouldn’t blame you. The infrastructure layer is, after all, the best part of the stack, the only part of the stack that can claim to be #Glorious.

But in my career, I always get roped in (willingly or not) into the upper layers of the stack. And so that is where I shall take you, if you let me.

Next up, the Platform layer. This is the layer where that special DBA in your life likes to live. He optimizes his query plans atop your Infrastructure layer, and though he is old-school in the ways of storage, he’s learned to trust you and your fancy QoS .vhdxs, or your incredibly awesome DRS fault-tolerant vCPUs.

Or maybe you don’t have a DBA in your Valentine’s card rotation. Maybe this is the layer at which the devs in your life, whether they are running Eclipse or Visual Studio, make your life hell. They’re always asking for more x (x= memory, storage, compute, IP), and though they’re highly-technical folks, their eyes kind of glaze over when you bring up NVGRE or VXLAN or Converged/Distributed Switching or whatever tech you heart at the layer below.

Then again, maybe you work in this layer. Maybe you’re responsible for building & maintaining session virtualization tech like RDS or XenApp, or maybe you maintain file shares, web farms, or something else.

Point is, the people at this layer are platform builders. To borrow from the automotive industry, platform guys build the car that travels on the road infrastructure guys build. It does no good for either of us if the road is bumpy or the car isn’t reliable, does it? The user doesn’t distinguish between ‘road’ and ‘car’, do they? They just blame IT.

Next up: software & service layer. Our users exist here, and so do we. Maybe for you this layer is about supporting & deploying Android & iPhone handsets and thinking about MDM. Or maybe you spend your day supporting old-school fat client applications, or pushing them out.

And finally, now we arrive to the top of the pyramid. User-space. The business.

This is where (and the metaphor really fits, doesn’t it?) the rubber meets the road ladies and gentlemen. It’s where the business user drives the car (platform) on the road (infrastructure). This is where we sink or swim, where wins are tallied and heros made, or careers are shattered and the cycle of failure>begets>blame>begets>fear>begets failure begins in earnest.

That’s the stack. And if you’re in IT, you’re in some part of that stack, whether you know it or not.

But the stack is changing. I made a silly graphic for that too. Maybe tomorrow.

Respect my Certificate Authoritah

Fellow #VFD3 Delegate and Chicago-area vExpert Eric Shanks has recently posted two great pieces on how to setup an Active Directory Certificate Authority in your home lab environment.

Say what? Why would you want the pain of standing up some certificate & security infrastructure in your home lab?

Eric explains:

Home Lab SSL Certificates aren’t exactly a high priority for most people, but they are something you might want to play with before you get into a production environment.

Exactly.

Security & Certificate infrastructure are a weak spot in my portfolio so I’ve been practicing/learning in the Daisetta Lab so that I don’t fail at work. Here’s how:

As I was building out my lab, I knew three things: I wanted a routable Fully Qualified Domain Name for my home lab, I was focused on virtualization but should also practice for the cloud and things like ADFS, and I wanted my lab to be as secure as possible (death to port 80 & NTLM!)

With those loose goals in mind, I decided I wanted Daisetta Labs.net to be legit. To have some Certificate Authority bonafides…to get some respect in the strangely federated yet authoritarian world of certificate authorities, browser and OS certificate revocations, and yellow Chrome browser warning screens.

dlabs
Too legit, too legit to quit

So I purchased a real wildcard SSL certificate from a real Certificate Authority back in March. It cost about $96 for one year, and I don’t regret it at all because I’m using it now to secure all manner of things in Active Directory, and I’ll soon be using it as Daisetta Labs.net on-prem begins interfacing with DaisettaLabs.net in Azure (it already is, via Office 365 DirSync, but I need to get to the next level and the clock is ticking on the cert).

Building on Eric’s excellent posts, I suggest to any Microsoft-focused IT Pros that you consider doing what I did. I know it sucks to shell out money for an SSL certificate, but labwork is hard so that work-work isn’t so hard.

So, go follow Eric’s outline, buy a cert, wildcard or otherwise (got mine at Comodo, there’s also an Israeli CA that gives SSL certs for free, but it’s a drawn-out process) and stand up a subordinate CA (as opposed to a on-prem only Root CA) and get your 443 on!

Man it sucks to get something so fundamentally wrong. Reader Chris pointed out a few inaccuracies and mistakes about my post in the comments below.

At first I was indignant, then thoughtful & reflective, and finally resigned. He’s right. I built an AD Root -not a subortinate as that’s absurd- Certificate Authority in the lab.

Admittedly, I’m not strong in this area. Thanks to Chris for his coaching and I regret if I mislead anyone.