The Top Five Virtualization Mistakes

MISTAKE #1: LEAVING THE NETWORK UNSEGMENTED
MISTAKE #2: VIRTUALIZING ONLY THE SERVERS
MISTAKE #3: FORGETTING TO VIRTUALIZE THE BRANCH OFFICE
MISTAKE #4: FORGETTING TO VIRTUALIZE THE NETWORK AS PART OF THE DISASTER RECOVERY PLAN
MISTAKE #5: FORGETTING TO SELL YOUR OLD HARDWARE ON EBAY

The conclusion:

To get the most out of your virtualization project and to avoid common mistakes, here’s a checklist to use in planning.
1. Look for unsegmented networks that might be at risk from virtualization and use virtualization tools to segment them.
2. Look at the networking functions associated with servers you plan to virtualize and virtualize them together.
3. Consider networking functions such as routing, firewalls, and VPN as part of branch virtualization projects. Putting them on the same hardware as other applications will get you a long way toward “branch in a box.”
4. Use virtualize to include network functions in disaster recovery plans, so that when there’s a disaster, your routing, firewall, and VPN will come back online along with the rest of your compute resources.
5. Sell off specialized network hardware on eBay. By using x86 hardware and virtualization, you’ll save money on purchase, operation, and maintenance.

The new Top25 as published by Eric siebert on vSphere-land:

1. Yellow Bricks – Duncan Epping – 158 #1 votes – total score of 4,191
2. Virtual Geek – Chad Sakac – 111 #1 votes – total score of 2,938
3. Scott Lowe’s Blog – Scott Lowe – 56 #1 votes – total score of 2,889
4. NTPro.nl – Eric Sloof - 22 #1 votes – total score of 2062
5. RTFM Education – Mike Laverick – 7 #1 votes – total score of 1,734
6. Virtualization Evangelist – Jason Boche – 13 #1 votes – total score of 1,482
7. VM/ETC – Rich Brambley – 5 #1 votes – total score of 1,138
8. Gabe’s Virtual World – Gabrie van Zanten – 8 #1 votes – total score of 1,096
9. Virtual Storage Guy – Vaughn Stewart – 58 #1 votes – total score of 990
10. Virtu-Al – Alan Renouf – 18 #1 votes – total score of 831
11. Virtualization Pro – Eric Siebert & Others – 3 #1 votes – total score of 774
12. vCritical – Eric Gray – 15 #1 votes – total score of 738
13. VMware Tips - Rick Scherer -  5 #1 votes – total score of 726
14. Frank Denneman – Frank Denneman – 22 #1 votes – total score of 697
15. The VM Guy – Dave Lawrence – 2 #1 votes – total score of 643
16. Planet VM – Tom Howarth – 4 #1 votes – total score of 633
17. The Slog – Simon Long – 8 #1 votes – total score of 614
18. VMGuru.nl – Various – 18 #1 votes – total score of 569
19. Mike D’s Virt. Blog – Mike DiPetrillo – 2 #1 votes – total score of 537
20. Hypervizor – Hany Michael – 8 #1 votes – total score of 453
21. Techhead – Simon Seagrave – 12 #1 votes – total score of 452
22. vReference – Forbes Guthrie – 11 #1 votes – total score of 443
23. Pivot Point – Scott Drummonds – 2 #1 votes – total score of 380
24. Technodrone – Maish Saidel-Keesing – 3 #1 votes – total score of 378
25. Chris Wolf – Chris Wolf – 0 #1 votes – total score of 375

在云计算方面，觉得 VMware 似乎慢了半拍，虽然 2009 年 9 月份随着 vSphere 4.0 的发布，提出了 vSphere 是业界第一款云操作系统，但是真正使用 vSphere 作为商用云计算平台的公司目前都还标明了“This service is currently in limited beta”（http://www.vmware.com/appliances/services/vcloud-express.html），目前还达不到 Amazon 使用 Xen 的成熟程度。

三种常见的云计算服务及其服务提供商：
   * Software-as-a-Service (SaaS)
     SalesForce CRM
     Google Apps
   * Platform-as-a-Service (PaaS)
     Google App Engine
     Microsoft Azure
   * Infrastructure-as-a-Service (IaaS)
     Amazon EC2
     The Rackspace Cloud

有句话很是认同：
If you want to be a SaaS provider then you may want build on top of a PaaS cloud.
If you want to be a PaaS provider then you may want to build on top of a IaaS cloud.
If you want to be a IaaS provider than you may want to build on top of virtualization.

嗯，我的观点是：虚拟化和存储是云计算的基础。

Agree or disagree is your own business, but I just can’t stop hating this.