DB2 LUW pureScale is somewhat akin to DB2 z/OS sysplex data sharing - multiple "member" hosts share storage and are interconnected by a high speed switch, although, in DB2 LUW's case, the switch is facilitated by innovative software running on a robust Power series server. The architecture and scalability is ideal for organization's having extremely high OLTP transaction processing requirements.
The target for 9.8 GA is the end of this year - with all of the usual disclaimers of announcements. Power systems will be initially supported with commodity hardware platforms to follow in a subsequent fixpack.
In episode #3 of The DB2Night Show, we had already planned to compare, contrast, discuss, and debate different High Availability methods. Guests include Dale McInnis from the IBM Toronto Lab and a representative from Xkoto GRIDSCALE. Be sure to sign up for episode #3 on 15 October 2009 at 10am CENTRAL --- now we'll have to add "pureScale" to this vibrant discussion!!! Reserve your free seat in the studio audience at The DB2Night Show.
In episode #4 of The DB2Night Show, tentatively planned for 22 October 2009 at 9am CT, we will be devoting this entire episode to DB2 9.8 and pureScale! So, be sure to check The DB2Night Show site regularly for registration links and updates.