• The application in a WPAR has to write into a filesystem.

  Page 32: All files that needs to be written by the application must be hosted on an NFS filesystem

  That means: No large applications that needs direct raw access to disk like Oracle on WPARS and the speed of you application is limited to NFS.
• WPARs works with checkpoint/restore. That means: When you want to migrate your application, you have to freeze the WPAR. Then you have to checkpoint it. The checkpoint state file will be written via NFS to the shared storage. When you restart the WPAR on a different system, the process loads the checkpoint state file from the NFS server, and starts the WPAR. The application doesn´t run while to take or revive the snapshot:

  The chkptwpar command captures a snapshot of all tasks executing within one WPAR. It first interrupts all processes so they reach a quiescence point, then stores a copy of the processes context in a state file.

  Still sound unproblematic to you? The problem is in a detail. Think about an application that allocates 8 GB of memory (your java application for example), now take into consideration that most datacenters run on Gigabit Ethernet. Let´s assume 80 MB/s per Gigabit Ethernet interface via NFS. Thus the writing the state file would take 100 seconds. Reading it on the target system: Another 100 seconds. IBM states:

  The only visible effect for a user of the application is a slightly longer response time while the application is migrating.

  Well, i don´t know your users, but three and a half minute application downtime isn´t a slightly longer response time.

Outbound Compatible
Compatibility testing shows that a WPAR can be relocated from the departure system to the arrival system, but it cannot be relocated back from the arrival system to the departure system.

What do you get out of it performance wise? If you look at the specfp2006, Power5+ at 2.2GHz reached 14.9 specfp2006, while Power6 reaches 22.3 specfp2006 at 4.7GHz - but of course, in an adapted Power5 machine. In summary, just under half additional speed at well over twice the clock.

• Strictly interpreted the keys for Vista to play HD content must be revoked and all new HD medias need a new key for windows. This is not exactly the stuff you want to hear promptly to the general availability of Vista
• Driver signing was touted by Microsoft to be an protection against malware. This proctection didn´t even survived the GA day. Can you really trust Microsoft that they are able to build a secure OS?

(...)Unsere Mannschaft sitzt in einem Büro“, erklärt Kaspersky. „Ich glaube nicht an Telefon- und Internetkonferenzen. Am besten kann man voneinander lernen, wenn alle beisammen sind.“

Oder auch die Mitarbeiterbefragung. Sicher wie eine Maikäferplage rutscht sie alle zwei Jahre auf die Tagesordnung der Vorstandssitzung. Meist gucken sich alle betreten an, wer sie dahin gebracht hat. Keiner will sie, aber alle machen mit wie bei der Saal-Polka mit André Rieu.

Statt den Mitarbeiter wie einen Demenzkranken zu behandeln („Haben Sie die neue Strategie verstanden?“), sind seine Kreativität, seine Ideen und seine Erfahrung – sicher individuell unterschiedlich – die großen Wertetreiber: