System i Blogger

Sep 15 2008   2:35PM GMT

Look for an Interim i Release Next Year, and i 6.2 in Early 2010 – IT Jungle

David Vasta David Vasta Profile: David Vasta

Link : IT Jungle – Look for an Interim i Release Next Year, and i 6.2 in Early 2010

“As some of you know, IBM hosted two Power Systems Technical Universities in Chicago last week–one for i nerds and the other for AIX and Linux techies. As we went to press with this issue of the newsletter, some news was beginning to filter back into the cosmic ether–OK, really my email and my telephone, nothing cosmic about it–about what IBM is telling the i crowd. There’s nothing earth shattering so far, but some interesting points.

First, the Virtual I/O Server that, as the name suggests, virtualizes disk, tape, and networking I/O for JS12 and JS22 blade servers running the i 6.1 operating system apparently has some performance issues. The exact nature of the issues are not clear to me, but I have been warning you since IBM put out a spec sheet earlier this year that the I/O bandwidth on these blades might be lower than you expect–and a lot lower than equivalently powered rack and tower versions of the Power6 lineup. And this might have a lot to do with the way VIOS is doing its virtualization of I/O and how i 6.1 is interacting with this layer. The OS/400 and follow-on operating systems already had its own way of virtualizing I/O, so adding another virtualization layer underneath that could be the culprit. I dunno. The thing is, the Power blades require VIOS to run i 6.1. You can’t get around it.”

Read More here . . . Link : IT Jungle – Look for an Interim i Release Next Year, and i 6.2 in Early 2010

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