Category: News

Top Blog 2012 results

So the voting has ended, the results have been tabulated and here they are. There were around 80 new blogs on the ballot this year and 4 new blogs to make the top 25. This year there was almost 1200 votes compared to around 800 last year. Voters were asked to pick their top 10 favorite blogs and them rank them from 1 to 10. The votes are weighted so a #1 vote is worth 10 points, a #2 vote is worth 9 points all the way down to a #10 vote being worth 1 point. The total points for each blog were added up to determine the results. It’s a pretty time consuming process for me, some of it is automated but I still have to add up votes and drop them into a spreadsheet to determine the winners.

Be sure and watch the special vChat top blogger awards episode that we recorded with special guest John Troyer as we count up the top 25 winners with lots of color commentary. The vLaunchpad and Planet vSphere-land will be updated soon to reflect the new voting results. Thank you everyone who voted and congratulations to the winners. With so many bloggers out there its a tough scene but I seriously encourage you all to keep at it, the longer you stick with it, the more people notice and will reward you with their vote. You guys are all great, I know how hard it can be to find the time to blog but do know that your efforts are appreciated and your unselfish dedication makes a difference to a great many of people.

Special thanks to TrainSignal for sponsoring it again this year, be sure and check out their website for their great new vSphere 5 and View 5 training offerings.

Here are the overall voting results…

BlogRankPreviousTotal VotesTotal Points#1 Votes
Yellow Bricks (Duncan Epping)116975440243
Scott Lowe23480303425
NTPro.nl (Eric Sloof)34419259245
Virtual Geek (Chad Sakac)42381229846
Frank Denneman56373221419
RTFM Education (Mike Laverick)6533717756
Virtu-al (Alan Renouf)79294159910
Virtually Ghetto (William Lam)825288152221
Virtualization Evangelist (Jason Boche)98283139215
vSphere-land (Eric Siebert)10726412679
The SLOG (Simon Long)1111225125823
Virtual Storage Guy (Vaughn Stewart)1215218124548
vReference (Forbes Guthrie)1319219112314
LucD (Luc Dekens)1421174105520
Gabe's Virtual World (Gabriel Van Zanten)151020499519
Nickapedia (Nicholas Weaver)162417194814
My Virtual Cloud (Andre Leibovici)173915091425
TechHead (Simon Seagrave)181416690417
VMGuru.nl (Various)191317981521
ESX Virtualization (Vladan Seget)202313880419
Chris Colotti21-11973328
VMware Tips (Rick Scherer)22181557185
Pivot Point (Scott Drummonds)23171146151
Brian Madden24-965816
Stephen Foskett, Pack Rat25-1165621
vCritical (Eric Gray)26161124830
Hypervizor (Hany Michael)2712974674
J Metz (J Michael Metz - Cisco)28-874473
Wikibon Blog (S. Miniman/D. Vellante)2969943951
A vTexan (Tommy Trogden)30-7238614
The Lone Sysadmin (Bob Plankers)31656238312
Professional VMware (Cody Bunch)3258733814
Around the Storage Block (Calvin Zito - HP)33-623784
GestaltIT (Various)3443913770
Mike D's Blog (Mike DiPetrillo)3522843733
Chris Wolf3641833641
Kendrick Coleman3730793552
VMware Videos (David Davis)38-583093
vSamurai (Christopher Wells)39-453086
The Storage Architect (Chris Evans)40-563061
Storage Nerve (Devang Panchigar)41-533041
VM/ETC (Rich Brambley)4220742980
VM Guru (Scott Herold)43-712921
2 VCP's (Jon Owings)4445702875
Technodrone (Maish Saidel-Keesing)45324128314
StorageIO (Greg Schulz)46-522767
Virtualize Tips (Brian Suhr)47-512764
IT 2.0 (Massimo Re Ferre)4838502721
Justin's IT Blog49-452689
The Virtualization Practice (Various)5049412657
Wahl Network (Chris Wahl)51-3625212
Sudrsn's Blog (Sudharsan)52-3524914
Ray On Storage (Ray Lucchesi)53-462431
vInfrastructure Blog (Andrew Mauro)54-422377
Ruptured Monkey (Nigel Poulton)55-422330
The Lower Case W (Matt Liebowitz)5685372286
vNinja (Christian Mohn)57-532251
Rickatron Blog (Rick Vanover)5883442220
Aaron Delp5948492211
WoodITWork (Julian Wood)60-482203
Arnim van Lieshout6127422151
The Cloudcast.net (Brian Gracely)62-332158
Hypervisor.fr6329342123
VMware Training & Certification (Scott Vessey)6442462102
Backup Central (W. Curtis Preston)65-442081
Hu's Blog (HDS - Hu Yoshida)66-2720714
Double Cloud (Steve Jin)6744352033
Planet VM (Tom Howarth)6835462013
The VM Guy (Dave Lawrence)6926331961
A Crazy Penguin (Andy Wood)70110341952
Virtual Admin Notes (Anton Zhbankov)71372619112
Virtual Insanity (S. Sauer/A. Sweemer)7228421896
vTesseract (Josh Atwell)73-321885
What Would Dan Do (Dan Brinkmann)74-361863
vSpecialist (Michael Poore)75-351843
ICT-Freak.nl (Arne Fokkema)76-431810
Hands On Virtualization (Barry Coombs)77-281771
Virtualization Security (Tripwire)7866331760
Virtualization, Data Center & Networking79-381751
VMpros.nl (Sander Daems)8034311756
Juanma's Blog (Juan Manuel)81-2317311
Storagebod (Martin Glassborow)82-321722
Ivo Beerens8361281712
Virtualization Pro (E. Siebert/Various)84-371690
Rational Survivability (Christofer Hoff)8552301651
SearchServerVirtualization Blog (Various)8668351652
Virtual VCP (Rynardt Spies)8763391630
Everything Virtual (Simon Davies)88-291615
VMworld.net (Andi Lesslhumer)89-271604
Everyday Virtualization (Rick Vanover)9040351572
Jonathan Medd91-321560
Andi Mann9297341540
Virtualised Reality (Barry Coombs)9364341544
Jase's Place (Jase McCarty)9447341531
That's My View (Christoph Hardin)95-271410
vmDK (Damian Karlson)96-291380
Virtual Planet (Ricky El-Qasem)9790341371
VMdamentals (Erik Zandboer)98-291362
A Day In The Life (Adam Baum)99114281350
The Data Center Overlords (Tony Bourke)100-271350
Virtualization Team (Various)10187311340
The HyperAdvisor (Antone Heyward)102101231321
The Saffa Geek (Gregg Robertson)103-261321
VirtualPro (Craig Stewart)10475311301
Run-virtual (Richard Garsthagen)10546211291
Virtualization Stuff (Mark Mac Auley)106108291270
Virtualization Spotlight (P. Redknap)107-231250
Vinf.net (Simon Gallagher)10896241241
Rickard Nobel109-241191
Virtualization Information (S. Snowden)11094231191
VMBulletin (Rick Schlander)111106251181
vDestination (Greg Stuart)11259251172
Virtual Geek (Cedric Megroz)113-221173
VM Admin (Andy Barnes)11484281150
Virtual SMB (Will Huber)115-221144
Poshoholic (Kirk Munro)116-221130
Virtual Noob (Chad King)117-281131
vExperienced (Edward Grigson)118-261112
By The Bell (Steve Kaplan)11931171092
The Storage Anarchist (Barry Burke)120-181091
vFrank (Frank Brix Pedersen)12181201082
VM Today (Joshua Townsend)122102221080
Virtualization for Service Providers123-191061
Infoworld Virtualization Report (D. Marshall)12474171011
mwpreston dot net (Mike Preston)125-171011
VMware Info (Carlo Costanzo)12654171014
TechProsaic (Hal Rottenberg)12771191000
Lewan Professional Services Team Blog128-13996
Going Virtual (Brian Norris)1298022961
vElemental (Clint Kitson)130-23961
Demitasse (Alastair Cooke)131-14932
VMware Admins (Eric Sarakaitis)132-24931
Cloud Buddy (Bilal Hashmi)133-19920
Virtualization Buster (Jonathan Franconi)13411320912
vMacken (David Owen)135-20910
Peacon Blog (James Pearce)136-19901
Virtual Lifestyle (Joep Piscaer)1377016901
Beaver's Virtual Dam (Steve Beaver)13810418871
Blue Gears (Edwad Haletky)1399320860
Knudt Blog (Brian Knudtson)1407818850
Virtual Jay (Jay Rogers)14111120850
VMexplorer (Matt Mancini)142-17830
Burdweiser (James Burd)143-14820
Lori MacVittie14410013821
Robert van den Nieuwendijk145-19822
View Yonder (Steve Chambers)1463320790
VMnerds (Jéré­mie Bri­son)147-19790
Blue Shift Blog (Kevin Kelling)14811219780
Virtual Clouds (Marco Broeken)149-20780
J.F.V.I. (Chris Dearden)1507317740
Virtual Troll (Heino Skov)1517917740
Ken's Virtual Reality (Ken Cline)1526217730
Virtual Future (Sven Huisman)1535713720
Jume (Bouke Groenescheij)1545617700
VirtuallyLG (Lorenzo Galelli)155-19690
IT Blood Pressure (Dwayne Lessner)156-16680
Virtually Speaking (Dan Kusnetzky)15710316681
vPerformance (Anders Hansen)158-17680
UP2V (Marcel van den Berg)159-10672
VMwise (Kanuj Behl)1608615670
Peeters Online (Hugo Peeters)1616019650
VMware Front Experience (Andreas Peetz)162-11652
vNoob (Conrad Ramos)163-17651
ThinkCloud.nl (Martijn Baecke)164-15640
Vinternals (Stuart Radnidge)1653616640
Malaysia VM1668814630
ValCo Labs (Josh Coen)167-11620
vSential (James Bowling)168-11620
Deshifrator169-12611
Roger Lund IT/VMware Blog (Roger Lund)1705514610
VMwarewolf (Richard Blythe)1716715610
Virtualizing the D.C. (Tony Wilburn)17211515590
Gerbens Blog (G. Kloosterman)1735014582
Elastic Vapor (Reuven Cohen)1749511571
It's Just Another Layer (Ian K.)17510512560
vNotion (Anton Gostev)1765113560
Virtual Hints (Matt Lorimer)1779915530
Tech-Tap (Dave Convery)178-9521
VMworldz (Scott March)1798211510
vKnowledge (Ted Steenvoorden)1809213480
DeinosCloud (Didier Pironet)1819812420
Mourad Boubchir182-5373
Enterprise Admins (Brian Wuchner)183-9330
GeekSilver's Blog184-6300
Musings of Rodos (Rodney Haywood)185777290
Eprich (Paul Richards)186-5270
vReality (Tomi Hakala)187-8240

And here are the top blog category winners…

Favorite Storage BlogVotes
Virtual Geek (Chad Sakac - EMC)354
Virtual Storage Guy (Vaughn Stewart - NetApp)158
Around the Storage Block (Calvin Zito - HP)61
StorageIO (Greg Schulz)59
Nickapedia (Nicholas Weaver)55
Hands On Virtualization (Barry Coombs)52
Hu's Blog (Hu Yoshida - HDS)42
Stephen Foskett, Pack Rat40
The Storage Architect (Chris Evans)37
vTexan (Tommy Trogden)34
The Storage Anarchist (Barry Burke)26
Ray On Storage (Ray Lucchesi)22
J Metz (J Michael Metz - Cisco)20
Storage Nerve (Devang Panchigar)17
Storage Mojo (Robin Harris)15
Ruptured Monkey (Nigel Poulton)8
Wikibon Blog8
Other not listed106
Favorite Cloud Computing BlogVotes
Hypervizor (Hany Michael)206
DoubleCloud (Steve Jin)124
The Cloudcast.net (Brian Gracely)121
IT 2.0 (Massimo Re Ferre')119
Andi Mann - UberGeek112
Rational Survivability (Christofer Hoff)63
DevCentral (Lori MacVittie)40
Other not listed352
Favorite End User Computing (VDI) BlogVotes
Brian Madden262
My Virtual Cloud (Andre Leibovici)235
vTexan (Tommy Trogden)87
Virtualize Planet (Ricky El-Qasem)56
What Would Dan Do (Dan Brinkmann)53
Wahl Network (Chris Wahl)52
That's My View (Christoph Hardin)51
Virtualize Tips (Brian Suhr)47
IT Blood Pressure (Dwayne Lessner)46
Demitasse (Alastair Cooke)19
Other not listed228
Favorite News/Information WebsiteVotes
vSphere-land.com (Eric Siebert)284
SearchServerVirtualization.com (Tech Target)148
Virtualization.info128
VMware Training & Certification (Scott Vessey)90
SearchVMware.com (Tech Target)88
VM Blog (David Marshall)72
Virtualization.net64
Virtualization Review44
Virtual Strategy Magazine37
Virtualization Admin26
Other not listed187
Favorite Scripting BlogVotes
Virtu-al (Alan Renouf)247
Virtually Ghetto (William Lam)223
LucD Notes (Luc Dekens)154
DoubleCloud (Steve Jin)56
vElemental (Clint Kitson)52
ICT-Freak.nl (Arne Fokkema)47
Technodrone (Maish Saidel-Keesing)46
vTesseract (Josh Atwell)38
Jonathan Medd's Blog31
Robert van den Nieuwendijk21
TechProsaic (Hal Rottenberg)17
Other not listed204
Favorite PodcastVotes
vChat (Simon Seagrave, David Davis, Eric Siebert)182
Professional VMware BrownBags (Cody Bunch)177
vSoup (Chris Dearden, Christian Mohn, Ed Czerwin)108
The CloudCast (Aaron Delp, Brian Gracely)76
Hands On Virtualization (Barry Coombs)74
Nekkid Tech (Greg Knieriemen)70
vKernel.tv53
Virtualization Security (Edward Haletky)50
APAC Virtualization Podcast (Alastair Cooke)41
Other not listed306
Favorite Official VMware blogVotes
VMTN Community (John Troyer)198
VMware vSphere Blog135
ESXi Chronicles123
Vroom! (Performance)114
VMware Storage Blog84
Office of the CTO Blogs (S. Herrod/others)67
VMware vCloud Blog55
vSphere PowerCLI Blog (Scripting)55
Virtual Reality (VMware perspective)51
VMware End-User Computing Blog45
Uptime (Business continuity & DR)23
VMware Vision21
VMware Networking Blog20
The Console (VMware management)16
VMware Security Blog14
Other not listed116
Best Videos used in a BlogVotes
NTPro.nl (Eric Sloof)351
VMware Videos (David Davis)253
RTFM Education (Mike Laverick)146
Professional VMware (Cody Bunch)107
The Cloudcast (.net) Video Channel (Brian Gracely)74
Other not listed206
Favorite New BlogVotes
Hands On Virtualization (Barry Coombs)96
vTesseract (Josh Atwell)92
vInfrastructure Blog (Andrew Mauro)82
The Cloudcast (.NET) (Brian Gracely)72
vElemental (Clint Kitson)67
Cloud Buddy (Bilal Hashmi)64
Virtual Noob (Chad King)46
vNoob (Conrad Ramos)45
Virtual Geek (Cedric Megroz)43
Virtual SMB (Will Huber)43
What Would Dan Do (Dan Brinkmann)43
Robert van den Nieuwendijk38
mwpreston dot net (Mike Preston)28
VMware Front Experience (Andreas Peetz)19
ValCo Labs (Josh Coen)16
Mourad Boubchir13
Deshifrator12
Other not listed318
Favorite Independent BloggerVotes
NTPro.nl (Eric Sloof)180
RTFM Education (Mike Laverick)110
ESX Virtualization (Vladan Seget)62
Gabe's Virtual World (Gabe Van Zanten)57
vReference (Forbes Guthrie)54
The Storage Architect (Chris Evans)40
Stephen Foskett, Pack Rat35
Professional VMware (Cody Bunch)32
VMware Videos (David Davis)31
StorageIO (Greg Schulz)29
Technodrone (Maish Saidel-Keesing)29
Wahl Network (Chris Wahl)28
Wikibon Blog (Stuart Miniman)27
vNinja (Christian Mohn)26
WoodITWork (Julian Wood)24
Cloud Buddy (Bilal Hashmi)23
VMware Training & Certification (Scott Vessey)21
Virtual Noob (Chad King)18
Jonathan Medd16
Ray On Storage (Ray Lucchesi)16
vInfrastructure Blog (Andrew Mauro)16
Virtualised Reality (Barry Coombs)16
VMnerds (Jéré­mie Bri­son)13
VMpros.nl (Sander Daems)13
VMware Front Experience (Andreas Peetz)12
Demitasse (Alastair Cooke)11
IT Blood Pressure (Dwayne Lessner)11
Deshifrator8
Virtual Clouds (Marco Broeken)8
Mourad Boubchir7
ValCo Labs (Josh Coen)6
mwpreston dot net (Mike Preston)4
Other not listed153



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Upcoming webcast on VMware performance management

Join me and Jonathan Reeve from SolarWinds in a webcast on Wednesday, Feb. 22nd at 10:00am MST on managing performance in a virtual environment. This webcast is based on a white paper that I wrote for SolarWinds and covers why monitoring performance is critical, where to get started, key metrics to monitor, why vCenter Server isn’t that effective and how SolarWinds fills the gaps in monitoring performance. You can register for this webinar here. Hope to see you there!

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Going to VMware Partner Exchange, don’t miss the party!

psw_vegas_tweetup_logo2

HP is sponsoring the Unofficial, Official Community Tweet-up at VMware Partner Exchange. If you don’t know what a tweet-up is it’s basically a fancy name for a party that is geared towards people on Twitter who follow each other so they can meet in person and socialize. But don’t worry, if you’re not on Twitter you can still attend, Twitter is a great communication tool and you might find yourself signing up once you find out more about it.

cafe_vegas

The party is Monday, Feb 13th from 8:00 pm – 10:00 pm right after the Welcome Reception ends and is being held at Jimmy Buffett’s Margaritaville which is a short walk south of the Venetian on the same side of the street. There will be free food and free drinks courtesy of Calvin Zito from HP and it should be a fun time. We will also be giving away a HP MicroServer to one lucky attendee which will make a great part of any VMware home lab (I have 2 of them in mine).

capture

Attendance is limited to 150 people so you must RSVP to attend, so head on over to Twtvite and RSVP, you can do this even if you don’t have a Twitter account. See you at PEX!

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Voting now open for the top VMware & virtualization blogs

uncle_sam_vote

There are over 180 blogs dedicated to VMware virtualization, here’s your chance to pick your favorites and determine the top blogs. The last voting was over a year ago and new bloggers are springing up every month. When casting your votes please keep the following in mind about the blogs.

  • Longevity – Anyone can start a blog but it requires dedication, time & effort to keep it going. Some bloggers start a blog only to have it fall to the wayside several months later. Things always come up in life but the good bloggers keep going regardless of what is happening in their life.
  • Length – It’s easy to make a quick blog post without much content, nothing wrong with this as long as you have good content in the post that people will enjoy. But some bloggers post pretty long detailed posts which takes a lot of time and effort to produce. The tip of the hat goes to these guys that burn the midnight oil trying to get you some great detailed information.
  • Frequency – Some bloggers post several times a week which provides readers with lots of content. This requires a lot of effort as bloggers have to come up with more content ideas to write about. Frequency ties into length, some do high frequency/low length, some do low frequency/high length, some do both. They’re all good and require a lot of time and effort on the bloggers part.
  • Quality – It all comes down to whats in the blog post regardless of how often or how long the blog posts are. After reading a blog post if you come away with learning something that you did not previously know and it benefits you in some way then you know you are reading a quality post. Good quality is usually the result of original content, its easy to re-hash something previously published elsewhere, the good bloggers come up with unique content or put their own unique spin on popular topics.

So please take all this into account when casting your votes, here are some more details on the voting:

  • You can pick 10 of your favorite blogs and also rank them in your order of preference after you pick your 10. The results will be weighted with #1 ranking getting 10 points and #10 rankings getting 1 point. Point totals will be tabulated and from them the top 50 will be determined.
  • Blogs are listed on the ballot  in alphabetical order with the current top 25 blogs highlighted in bold & underlined text, so please go through the whole list when making your choices (Duncan ended up on the bottom).
  • New this year we also having voting in special categories to help distinguish certain types of blogs. The choices of which blogs to include in the categories was the result of this survey and my best guessing. The categories are independent of the general voting so first pick and rank your top 10 overall favorite blogs and then choose your favorite blog in each category.
  • Voting will run until 2/7, afterwards the results will be determined and announced on a special podcast with myself, Simon Seagrave, David Davis and John Troyer live at VMware Partner Exchange.
  • Several random voters will be picked to win a copy of the Train Signal’s  new vSphere 5 and View 5 video training courses.
  • Duplicate vote protect is enabled, we’ll be using geolocation, IP addresses & cookies to protect against duplicate votes. This isn’t Chicago, please be honest and fair when voting, any suspicious votes will be tossed.
  • If you are not familiar with a blog you can use my vLaunchpad to see links to them all. Try not to pick blogs based just on names but also take content into account. There are a lot of good blogs currently not in the top 25 that deserve to be there.

So what are you waiting for, head on over to http://vote.vsphere-land.com to cast your ballot and reward the best bloggers for their hard work and dedication by letting them know that you appreciate them. In case you need it here’s the direct link to the survey as well.

vote-button

Special thanks to Train Signal for sponsoring the voting!

ts


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Nominations for Top Blog voting categories are now open!

It’s time to do the annual top blog voting, last year we had almost 1,000 votes that shaped the top 25 list that is published on my vLaunchPad. This year in addition to the traditional top 25 voting I’m opening it up to allow voting in specific categories as well to help distinguish certain types of blogs. To do this I have created a survey to allow you to nominate your blog or website for one of the categories that I have defined.

This survey is not the general voting poll for the top VMware/virtualization blogs, this survey is only to nominate your blog for certain categories if it fits. Once the nominations are collected I will open the polls for voting for the top blogs where voters will be able to rate their top 10 blogs and also vote in each of the categories.

You should only nominate your own blog/website, these nominations will be used to populate the category choices when voting opens. If your blog doesn’t fit one of these categories then do not nominate it, all blogs on the vLaunchpad will automatically be included in the general top blog voting. If your blog is not currently listed on the vLaunchPad use this form to let me know. The categories that can be voted on are:

  • Best Storage Blog (Must have more than 50% of posts storage related)
  • Best Cloud Blog (Must have more than 50% posts cloud related)
  • Best VDI/End-user Computing Blog (Must have more than 50% posts VDI/EUC related)
  • Best News & Information Website (No blogs)
  • Best Scripting Blogger (Must have more than 50% posts Scripting related)
  • Best podcast (Audio or video podcasts)
  • Best official VMware Blog (Blogs part of VMware’s website)
  • Best Videos used in a Blog (Must have produced a good percentage of videos)
  • Best New Blog (Blog must be less than a year old)
  • Best Independent Blogger (Can’t work for VMware or a hardware/software vendor)

So head on over to the survey and nominate your blog or website, the survey will be open until 1/17. Once it closes I will use the nominations to build the survey for the top blog voting which will begin shortly afterwards.

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What happened to vShield in vSphere 5?

I was updating my VMware build/release tables a few weeks ago and noticed that I could not find a version 5.0 of vShield Zones which is included with the Enterprise and Enterprise Plus editions of VMware. When you go to the download links for vSphere 5 under the Enterprise Plus category it says VMware vShield Zones for vSphere 5 – 1.0 Update 1.

2012-01-07_1248141

So I thought that can’t be right in vSphere 4.1 the version of vShield that was included was vShield Zones 4.1, how can it be version 1.0 now. In vSphere 4.1 there was the Zones version and the App version of vShield, you could upgrade from Zones to App by buying the licences for it and once you applied them Zones became App which provided more features that were not part of Zones.

So I was having lunch with Rob Randall, VMware’s security guru last week and asked him about it. Turns out they are no longer providing the updated vShield Zones as part of the bundle with Enterprise/Plus licenses. They did a switch-a-roo and are now providing the old version 1.0 Update 1 instead. I’m guessing they thought they were giving too much away for free with the updated vShield Zones which was not all the much different from vShield App and as a result people were not upgrading to App. This is disappointing as there is a huge difference between the 4.1 version of vShield and the  1.0 version. The biggest difference is version 1.0 does not use the VMsafe APIs and only worked inline between vSwitches in bridged mode. So if you are upgrading from vSphere 4.1 to vSphere 5 and you are using vShield Zones be aware that you are going to lose it after you upgrade. Your only options are to switch to version 1.0 (not very appealing) or cough up the dough to buy vShield App licenses. This VMware KB article breaks the bad news to you.

If you want to read more about vShield and the differences between the 1.0 and 4.1 versions as well as the differences between Zones & App I did a detailed multi-part series on each that you can read.

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vSphere Storage I/O Control: What it does and how to configure it

Storage is the slowest and most complex host resource, and when bottlenecks occur, they can bring your virtual machines (VMs) to a crawl. In a VMware environment, Storage I/O Control provides much needed control of storage I/O and should be used to ensure that the performance of your critical VMs are not affected by VMs from other hosts when there is contention for I/O resources.

Storage I/O Control was introduced in vSphere 4.1, taking storage resource controls built into vSphere to a much broader level. In vSphere 5, Storage I/O Control has been enhanced with support for NFS data stores and clusterwide I/O shares.

Prior to vSphere 4.1, storage resource controls could be set on each host at the VM level using shares that provided priority access to storage resources. While this worked OK for individual hosts, it is common for many hosts to share data stores, and since each host worked individually to control VM access to disk resources, VMs on one host could limit the amount of disk resources on other hosts.

The following example illustrates the problem:

  • Host A has a number of noncritical VMs on Data Store 1, with disk shares set to Normal
  • Host B runs a critical SQL Server VM that is also located on Data Store 1, with disk shares set to High
  • A noncritical VM on Host A starts generating intense disk I/O due to a job that was kicked off; since Host A has no resource contention, the VM is given all the storage I/O resources it needs
  • Data Store 1 starts experiencing a lot of demand for I/O resources from the VM on Host A
  • Storage performance for the critical SQL VM on Host B starts to suffer as a result

How Storage I/O Control works

Storage I/O Control solves this problem by enforcing storage resource controls at the data store level so all hosts and VMs in a cluster accessing a data store are taken into account when prioritizing VM access to storage resources. Therefore, a VM with Low or Normal shares will be throttled if higher-priority VMs on other hosts need more storage resources. Storage I/O Control can be enabled on each data store and, once enabled, uses a congestion threshold that measures latency in the storage subsystem. Once the threshold is reached, Storage I/O Control begins enforcing storage priorities on each host accessing the data store to ensure VMs with higher priority have the resources they need.

Read the full article at searchvirtualstorage.com…

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Easy way to transfer files to a VM from the outside

I find myself frequently needing to copy files such as application installation files from my workstation to the guest OS running inside a VM. Sure you could do this using UNC paths and shares by connecting to the VM at the guest OS layer and authenticating with the VM and then copying files with Windows Explorer but this can be a pain sometimes. It also means that those files are taking up space on the VM and if its only temporary and you’re using thin provisioning you can’t easily reclaim that space. I also find myself installing the same applications on many VMs and to have to copy the files to each VM can be time consuming.

So instead of messing with copying files through the guest OS layer using a copy utility, I prefer to copy them through the virtualization layer using an ISO file. By using an ISO file I can easily mount it on the VMs CD/DVD drive and then access the files without having to copy them to the VM’s file system. This is the same method by which VMware Tools is installed on a VM, the VMware Tools install binaries are mounted from a special mount point on the host disk partition to the CD/DVD drive of a VM so they can be installed. You’ll notice if you create a VM without a CD/DVD drive that you won’t be able to install VMware Tools and will receive an error if you try.

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So you might think, creating an ISO file, isn’t that a pain in the butt as well. It’s actually very quick and easy and once you create it you can use it over and over on any VM to install applications with and copy files to VMs if needed. You can keep a collection of them on your workstation and mount them from your local disk or you can copy them to a host datastore and mount them from there. I sometimes create toolkit ISO images that contain many of the typical applications (i.e. Sysinternals, disk tools, etc.) that I use when troubleshooting problems within a VM. Windows still does not have the native ability to read or write ISO files but there are a number of free tools that you can create ISO files with such as ImgBurn, CDBurnerXP (works on Win7) and ISO Recorder. I usually use ImgBurn but ISO Recorder is even easier as you can select the files/folders that you want to include in the ISO file and launch it via the Windows Explorer menus like below.

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Next you simply select a directory and a name to save your ISO file in, click Next and your ISO file will be created.

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You can now mount it inside the VM using the virtual CD/DVD drive of the VM by browsing to the ISO file you just created so you can access all the files inside the ISO file from within the VM.

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That’s it, quick and easy, takes less than a minute to complete and much easier then having to copy files through the guest OS of the VM.

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