Archive for December, 2009

Cutting through the FUD: Facts you should know about Hyper-V and System Center

Wednesday, December 23rd, 2009

Microsoft has an interesting blogpost which they hope will help fight back against what they regard as unofficial FUD campaign against HyperV and their associated virtualization products:

http://blogs.technet.com/virtplanet/archive/2009/12/19/cutting-through-the-fud-facts-you-should-know-about-hyper-v-and-system-center.aspx

It’s written by Edwin Yuen, Senior Technical Product Manager. Some Pro-VMware folks might find it a bit “kettle calling the pot black” of Microsoft to accuse others of FUD.  After all Microsoft haven’t been shy of producing their own FUD in recent years. You might remember that Yuen was the co-presenter in the now notorious “Microsoft Myth Busters: Top 10 VMware Myths” -  that claimed VMware introduced more “layers” than the MS model.

What’s interesting about Yuen’s blogpost is how conciliatory it is, compared to the more recent content spats – which saw VMware & Microsoft at each others throats on whole raft of features and issues. So for example Yeun states in the blogpost

“At the most basic level, you can deploy Hyper-V and Microsoft Virtualization side by side with any VMware installation.  Virtualization is a growing technology and there are plenty of opportunities in most business to deploy both hypervisors.  It is NOT an all or nothing proposition.”

To be honest I think the may be some merits in Yuen’s argument – that there maybe indeed a strategic use of Microsoft Virtualization or even Citrix Xen – for certain applications. I have customers coming to me with arguments along the line of – should we be using VMware for Tier1 applications, and “good enough” virtualization for the lower end. The only trouble I have with this perspective is… Firstly, running multiple environments which overlapping functionally in itself is not free from cost. Secondly, I think Yuen’s suggestion is essentially an argument designed to leverage a Microsoft deployment into a VMware shop – in real effort to squeeze out VMware altogether. No disrespect to guy personally, but I think he’s been a bit disingenuous when postulates a side-by-side installation. If Microsoft is worth its salt. If any company is worth it salt. It will actually want to usurp of the competition. If you like this precisely how MS successfully defeated Novell. So MS says:

“Look were not out to get you to remove Novell VMware. No, our technologies work along side your existing Novell VMware environment. Our technologies are complementary, you don’t have to get rid of Novell VMware. It’ is NOT an all or nothing proposition.”

That’s all very reasonable. It’s not that is bad thing – but I’m interested in the realities rather than just PR. We all know Microsoft want piece of the virtualization pie. The competition is good for the customer at the end of the day. If VMware had no competitors we would be a very difficult situation.

Yuen goes on to criticize what he calls – “clickbox-its”. The way some pro-VMware types enumerate a dizzying list of features to demonstrate that other products (like MS Virtualization) are some not “Enterprize Ready”. This is something I call “Featurism”. Where products become bloated monsters overstuffed with features that customers/users hardly ever use…like [FILL IN THE BLANK]. :-)

Of course, all software vendors use such features to differentiate themselves from there competitors all the time. It’s a disease systemic to the IT generally – and to world of consumer electronics. All of these companies need to construct some kind of value-add proposition and try to construct some kind of USP to differentiate themselves from the competitors. That’s all fine and dandy – the trouble is it that its left to us as consummers to in our sometimes clumsy way to work out if

a.) The claims are true

b.) if those differentiators are significant as they tell us they are

c.) is worth the premium in terms of licensing costs – that they attach to those features.

In my experience – many companies spend a truck load of cash on software/hardware – and then only use 10% of its functionality. This happens NOT because they don’t need the other 90%, but they have less investment in the skills & abilities of the folks who drive and manage those technologies. They are merely ignorant of other 90% of what the technology can do for them – and they just accept the defaults and core functionality. In the average IT shop you’re expected to know 10% of everything. The trouble with this as the poet Alexander Pope once said is “A little knowledge is a dangerous thing.”

It’s no accident I’ve dedicated the last 17 years of my IT career in some kind of training/educational role. The disappointing thing I’ve discovered is – that many companies seem to put more value in depreciating assets such as hardware/software – than they do with their appreciating assets – the folks they employe. You see this in every major economic downturn like the one were are experiencing. The first thing that companies cut is their staff development when their bottom line is under threat.

Anyway, anyone who’s ever seen me instructor or ready my various books/guides – will know that I’m as equally interested in what technology does when it works, as what it does when its broken. Yuen makes a very valid point about “clickbox-its” but I think its problem that all vendors create for themselves. When was the last time you heard software vendors say “Here’s a brand new version of our product – and by the way – there are NO new features”?

What really strikes me about this blogpost – is that if you read between the lines – this is a tacit admission that there is a feature-gap between MS virtualization and VMware virtualization. The line that’s being pitched – is that this gap doesn’t ergo mean that MS virtualization can be dismissed as a sub-standard product. My prediction is that in the next 5-10 years VMware will have to work increasingly harder to get their value-add proposition across to the market – in precisely the same way that Citrix had to with their MetaFrame/Presentation product when it was being compared (unfavorably from a cost perspective) to the Microsoft Terminal Services offering. Many back in late-90′s incorrectly predicted Citrix’s downfall back then.

That, my friend, is the nature of the market and competition.

VMware vCenter Site Recovery Manager 4.0 Performance and Best Practices White Paper

Friday, December 11th, 2009

VMware the viops blog have released a white paper which discusses stuff you can do to improve performance of the SRM product and its recovery plans.

It includes such tips such as:

  • Fewer but larger NFS datastores can help speedup a recovery
  • Specifying a non replicated datastore for swap files will eliminate certain remote calls during a recovery and will help improve recovery performance.
  • Even placement of shadow virtual machines across all hosts on the recovery site will ensure maximum parallelism during a recovery
  • And much much more!

http://blogs.vmware.com/uptime/2009/12/vmware-vcenter-site-recovery-manager-40-performance-and-best-practices-white-paper-posted.html

Microsoft release Offline Virtual Machine Servicing Tool 2.1

Friday, December 11th, 2009

Microsoft has released an update to its OVMST (That’s my abbreviation by the way!) It’s really a support refresh that updates the utility to be compatible with all the R2 stuff that’s been coming out of MSFT’s door – together with support for Windows 7 etc.

In case you don’t know OVMST handles how VMs get patched/services when they are offline – whether they are powered off or suspended. It saves admins from having to power on VMs – and do the update manually.

http://technet.microsoft.com/en-us/library/cc501231.aspx

VMware vSphere 4.0 Update1 “A”

Thursday, December 10th, 2009

Coming of tweet from Eric Sloof, and from a blog post by Duncan Epping.

http://www.yellow-bricks.com/2009/12/10/esxi-4-0-update-1a/

http://downloads.vmware.com/d/details/esx40u1_a/ZHcqYmRqampiZGUlaA==

It looks as if VMware have released a U1-A, another sub-update to their update – shades of Service Pack 1a for Windows? I guess you could say that. The new update address the HP Insight Management Agent upgrade bug that reared its ugly head during the Thanksgiving Holiday period, which initiated an “August 12th” response from VMware in the form of announcements and eventually lead to them withdrawing U1 from VMware Update Manager.

The download page for U1-A also mentions a disconnect bug in ESXi that would occur after upgrading vCenter 4.0 to vCenter 4.0 U1.

http://kb.vmware.com/kb/1016262

The U1-A does NOT address this issue – and ESXi customers are advised NOT to upgrade until there is fix. That’s little comfort to people like me who have. I have ESXi host that repeated disconnects from vCenter even though its pingable. A restart of the network and management agents does not fix it.

Verdict? I will wiping the ESX host and putting ESX ‘Classic’ in the New Year.

As for U1. The jury is out on its quality. I upgraded because I wanted to use View4. Actually, View4 does work without the update – but to do so is unsupported. I’m now wondering if I should have bothered with U1.

I did a perfectly functional SRM4.0 deployment, however since U1 I’ve had nothing but problems – networking problems between the SRM and the vCenter. The trouble is it’s hard to conclude these problems are the fault of U1. Although nothing changed in my lab environment accept the U1 roll-out and the ‘repair’ of SRM that has to happen afterwards.

I guess should take heart. My woes are not in a production environment. But a lab environment. Rolling out U1 was a risk, but one that was quite small. I’ve decide to stop work for the rest of the year. I’m all tuckered out from 2009. I have course to teach next week in Swindon – and then its Xmas week. So I think I will leave the broken environment I currently have where it is – and start a fresh in the New Year.

:-)

Come over to the darkside – Futher adventures of Mr MBP

Wednesday, December 9th, 2009

Well, if you follow my blog regularly you will know I recently moved over to the darkside – and acquired a MacBook Pro. According to some I did this just at the wrong time – just as Windows was going to get wonderfully better in the shape of Windows 7. Well, that doesn’t really help me does it. Look I’ve spent the money on the darn thing now, so there’s no point in really saying that is there. I don’t think my pals at Dixons (the “Best Buy” of the UK) would really pony up the refund.

So I wanted to share with you my experiences – I think this is the 2nd or 3rd week of use. Firstly, performance. The MBP (MacBook Pro) certainly feels much quicker than my old Windows Vista notebook. I’m not sure if that’s a fair comparison – given that Vista was universal recognized as Windows ME in disguise. Plus the old Windows Vista laptop had only [!] 2GB of RAM, and the MBP has 4GB. The are both dual core (AMD vs Intel). I was thinking about this the other day. Nearly every CLEAN install of Windows is pretty quick to be honest – the trouble is OVER TIME, they gradually grind to snails pace. So, I guess a more fair comparison will be in 1 years time – is the MBP as quick or does it like Windows get clogged up with the grit and grind of every day use.

Secondly, I opted for Microsoft Office for MAC as the office sweet (deliberate spelling mistake by the way). Of course some Mac-Whores would and have instantaneously condemned me for my choice. That’s not an “Apple” program its a Microsoft one – as if Apple are the ONLY source of applications for the Mac. They point to iWorks and or OpenOrifice. To tell you the truth I opted for the Microsoft Office for Mac after asking some Mac-Philes via twitter whether it was worth it – to which they said yes. BUT… I’m afraid Entourage (Outlook for the Mac) does crash, as does Word and Excel. They aren’t quite so bad as the Windows one’s but not much better. Anyway, like the MBP I paid for the darn thing, so I’m addiment its I’m going to use it. My main reason for sticking with MS Office on the MAC – was to make the move from PC to Mac smoother – and thought introduce another layer of file formats – would make exchanging data between the Mac to PC would be harder.

On the upside. iTunes is noticeably better on the Mac. The other thing I’m loving is the native support for PDF. So I don’t need a secondary application for PDF generation like I did for Vista – that’s handy when submitting purchase orders and invoices. It’s no slouch on the PDF front either – with the ability to protect the PDF and handle metadata.

The other thing I like about the Mac is how easy it is to install and de-install applications. That’s always been a PITA in Windows. Basically, in most case you download a .DMG file (this is a Disk Image format – like .ISO) which is then mounted – and then the install kicks off. In most case you just drag and drop the application within the DMG file – to your applications folder. If you want to “de-install” you drag it to trash. Some installer do come with an engine to get you to accept an EULA/License String – but in the main all they do is copy the .APP file to the Applications Folder. Neat. Here’s my hit list of applications I’ve downloaded and installed in the three weeks I’ve been a MBP user:

Vienna – http://www.vienna-rss.org/vienna2.php

DivX – http://support.divx.com/

FireFox – http://www.mozilla.com/en-US/firefox/personal.html

Flip4MAC – http://www.microsoft.com/mac/products/flip4mac.mspx

MacICA_OSX – I forget where I downloaded this from now. It’s appears to be no longer around on Citrix’s website. It’s looks and feels like a “Program Neighborhood” for Apple MAC. You create an ICA file with all the right settings, then it gets loaded in the ICA engine. I was however able to find a copy here

http://www.lshtm.ac.uk/its/remote/mac.htm

RDC – http://www.microsoft.com/mac/products/remote-desktop/default.mspx

Skype – http://www.skype.com/download/skype/macosx/

uTorrent – http://www.utorrent.com/downloads/mac

VMware Fusion – I think you know where to find this!

Yahoo Messenger – http://messenger.yahoo.com/mac/

ClassicMACFTP – http://www.nchsoftware.com/classic/index.html

On the downside – I notice there’s no native support for .FLV files on a MBP until you find a free player like Eltima’s free player:

http://mac.eltima.com/freeflashplayer.html

That flash support is quite important to me – especially when I create videos. Generally, if you recording the screen and doing narrations and want something better than youtube.com and zoom-ins – your talking .flv formats – unfortunately both MP4 and Windows Media – are far too large to be considered acceptable for streaming. The trouble is finding an on-screen recorder that saves/exports to flash natively. I tried two as an eval – Camtasia for Mac and ScreenFlow for Mac. Neither support .FLV conversions. But out of both them – ScreenFlow seemed to have the best export functions, integrates very nicely with the iSight camera – and allows you to re-size the video during the export process – just not into a .flv format. SO, it looks like I will have to find some application that takes MP4/Mov/. Personally, Screenflow wins – and what’s more its on $99 compared to Camtasia for Mac which was $149, but is currently $99 on special offer.

So as you can see FLV support beyond the web-browser is a little bit thin on the ground with a MBP.

My move over to Mac hasn’t been painless. I’m still struggling with keyboard shortcuts which mainfests itself on a number of levels. Firstly, there isn’t a direct mapping of popular keystrokes in PC to Mac. For example in Windows to copy is [ctrl]+c, whereas in mac is it’s MacKey+C. Where that becomes tricky is when your in a RDP/ICA session – and you want to cut and paste data from one to the other. You find yourself having to use two different keystrokes. Secondly, is when you need to send from a MBP keyboard particular keystrokes to a RDP/ICA session. For example:

F11 – which is used to confirm things like a reboot in ESXi

Alt+F1 – which is used to get to the Tech Support Mode in ESXi

Insert Mode – which is used when I use vi to edit text…

Don’t get me wrong the keystrokes are there – sometimes I’ve had to google-wack them – other times, I’ve had to change the keystroke options (say in the HP ILO) to get the right keystroke sent.

The other slight annoyance is sometimes the keystrokes aren’t consistent. For example MacKey+ is usually the thing that replace [ctrl]+ in most case. But if you want to kill ping from the Terminal application its [ctrl]+c.

I guess the easiest thing to say is Mac is just different, and different takes time to get used to.

New VMware Data Recovery Appliance (vDR)

Wednesday, December 9th, 2009

VMware has recently re-issued their VDR appliance – that runs as VM to back up VMs. It’s pretty cute, although limited to 100 VMs maximum.

http://blogs.vmware.com/uptime/2009/11/vmware-data-recovery-11-and-file-level-restore.html

That URL takes you screen dumps that show the new graphically based “File Level Restore” utility. Don’t get your hopes up too much. It still just mounts a restore point like the old CLI based FLR. It’s not like a backup agent that allows you to select files to restore and their destination (original or new). It’s basically a very good disk mounting wizard – you will still find yourself copying files from the mounting point to your virtual disk.

Some more SRM linkage

Wednesday, December 9th, 2009

Over on the Uptime blog there are some interesting posts concerning SRM 4.0. It’s kinda odd really – you get SRM post on the Uptime blog but different posts also SRM related on the viops.com blog – both run by VMware. I guess its the old age problem of how delimitate content and categorize it. Sometimes the Uptime blog is very er, operational – and other times the viops blog is very much about uptime issues!

The first post concerns support for Windows 2008 and SRM 4.0

In nutshell you can install SRM to Windows 2008 but it must be the 32-bit edition, SRM 4.0 is not supported on 64-bit. However, the plug-in which installs to the vSphere4 Client the 64-bit version is supported. The blogpost explains how this has caused some confusion. Mmm, no surprises there then.

Of course, Windows 2008 is supported as target for recovery – but if you use guest customization to re-IP the VM (I wouldn’t recommend doing that), then that’s only supported on the 1st release, there isn’t support for R2 and re-IPing.

Phew. Glad that’s all clear then! :-)

http://blogs.vmware.com/uptime/2009/10/srm-40-and-windows-2008-support.html

The other blog post concerns a change to licensing if you are running on vSphere 4 UPDATE 1. [Note: Doesn't apply if you haven't moved up to U1 yet]. Put simply the license key is now held along side all the other license keys in the vSphere4 client – and you alllocate the SRM license to the “solution’ which is SRM.

http://blogs.vmware.com/uptime/2009/11/srm-40-license-change-after-upgrading-to-vsphere-40-update-1.html

This blog article references KB article – http://kb.vmware.com/kb/1016111

Something I experienced during the roll-out of vSphere4 U1 was having to repair the SRM installation afterwards…

Microsoft Site Recovery Solution

Wednesday, December 9th, 2009

Now firstly, this will really only be of interest if your an MS customer running HyperV. A couple of weeks ago Microsoft announced there own Site Recovery Solution .

http://blogs.technet.com/virtplanet/archive/2009/11/03/microsoft-site-recovery-solution-launch.aspx

I’m not sure how it compares to VMware’s Site Recovery and whether it is capable of the same level of automation it currently offers.

It seems to based around their clustering DLLs. There is some more technical referrence material here:

http://blogs.msdn.com/clustering/archive/2009/11/04/9917628.aspx

Virtualization Platform vs Operating System

Wednesday, December 9th, 2009

This quite an old Microsoft post writing back at VMworld 2009. It was sat there in my RRS Feeder (now Vienna since I switch to Mac a couple of weeks ago – Vienna why does that make me think of Ultravox)

http://blogs.technet.com/virtualization/archive/2009/09/01/the-virtualization-platform-vs-the-operating-system.aspx

It concerns what I feel is a real ideological divide between VMware (and others) and Microsoft. Microsoft firmly believes the hypervisor or virtualization layer should reside as function of the operating system. Whereas VMware and others think the hypervisor should be independent ancillary micro-kernel who’s sole task (amongst some others) is run virtual machines. The guest operating system should be where high-level stuff should run.

The VMware view of the world has lead to some would say to some half-baked announcements such as the “death of the operating system”. Personally, I think such announcements are there to make headlines rather than inroads into our thinking. I guess VMware’s grand vision is download-able world where VMs are just pulled down from the web as stand-alone Virtual Appliances or as multi-tier vApps. The trouble is that remains largely a vision rather than a reality. The reality is most folks are running Windows inside a VMware virtual machine. I’ve often thought that despite VMW and MSFT being at regular loggerheads on the blogger-sphere – they actually compliment each other more than either party would care to admit to. VMware makes it very easy to run multiple copies of Windows on a single physical host, and Microsoft makes lots of money on the guest operating system licenses via VM sprawl… I guess the real message behind VMware’s grand vision is that the role of GOS is much reduced if you accept their view of the world – that’s leads us down the road of JEOS (Just-Enough-Operating-System). However, ever for such a view to take hold, customers are going to have to want something like Linux in a VM, rather than Windows. That’s a big ask I think.

Personally, I don’t think the OS should have a virtualization layer – except as low-cost virtualization layer – for folks who don’t need a fully-blown hypervisor. It seems that MSFT have wanted to have it both ways. They stake a claim that HyperV is as good as ESX/Xen – saying its a fully-fledged hypervisor – but then in same breathe they say the virtualization layer should be part of the OS. I don’t see how you can make the claim both ways without sounding like your contradicting yourself. I don’t think MSFT is helped when issue confusing FUD which suggests there are more layers in the VMware model than there’s. That’s just fancy slicing on their part – which I don’t think anyone who is serious about virtualization buys one little bit.

Scott Lowe – NPIV, Nexus, Design Exam..

Wednesday, December 9th, 2009

My fellow blogger has some interesting stuff on hardware (NPIV and Nexus). I like Scott’s blog he gets down and dirty with real bleeding edge features – something I would like to do but often lack the hardware and knowledge to do so. One is reflection of the other. Anyway, Scott has some interesting posts on these topics – as well as talking about his experiences of the design exam.

I don’t think I will be doing any of these exams just yet. I can’t see the benefit for me personally or professionally to be honest. Although I can see others will think differently. What I want to do in the New Year is get more familiar with Citrix and Microsoft virtualization technologies. So I think I will take the fast-track approach and do some training courses to get up to speed with their offerings. All that is on hold until I get this SRM book put to bed. Anyway, less my ramblings – here’s those Scott Lowe links:

http://blog.scottlowe.org/2009/11/27/understanding-npiv-and-npv

http://blog.scottlowe.org/2009/11/03/fcoe-and-vlan-trunking-on-nexus-5000

http://blog.scottlowe.org/2009/11/09/enabling-jumbo-frames-on-a-nexus-5000

http://blog.scottlowe.org/2009/11/05/vcdx-design-exam-post-mortem



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