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* Posts by blaine gaither

4 posts • joined 26 May 2009

Multimillion-pound hoard of 50BC GOLD PIECES found in Jersey

blaine gaither
Happy

The leprechauns want their gold back

Now!

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Blade servers 101

blaine gaither
Happy

Wasn't Superdone HP's first blade server

I think that it was introduced in 2000.

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Getting under the shell of virtualization

blaine gaither

And then there is security

While providing an abstracted view of the hardware, an operating system also brings some baggage. One bag contains security holes that the applications that run upon the operating system do not have.

The same is true for hypervisors. The more features that are integrated into the hypervisor such as management facilities, the more vulnerabilites arise. An operating system places a bunch of applications at increased risk and a hypervisor places a bunch of guests and even more applications at risk.

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Unisys soups up mainframe engines

blaine gaither

Why the strange memory sizes?

WRT

"Each Libra 780/790 mainframe cell board sports from 4 GB to 128 GB of DDR2 main memory, which is formatted down to 3 GB to 96 GB of addressable memory for MCP workloads. (Presumably there is some memory sparing magic going on)"

This is likely due to the fact that the original MCP uses a 48bit word with in memory tags to inicate the type of operand that was stored at that location.

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