Sunfire B1600 issues

I've been having serious problems with our four Sunfire b1600's.

Wondering if anyone else out there is seeing it.

We have four of these chasis with anywhere from 5 to 12 blades in use.

We also have spare unused blades in each chasis. When we go to use

the spare blades, install os and boot up, the blades can't reach the network

on either interface. They can't even ping other blades in the same chasis.

Funny thing is existing blades that are in use are fine. It seems that any

unused slot goes dead after a period of time. I say slots because if we

move the spare blades to an empty slot they still do not work. If we pull

an existing in-use blade out and put a new spare blade in its place, the

new blade works fine. And vice versa if we install a blade that was

working origially in one of the unused slot it has the same issues with

no network on either interface.

We can fix this by power cycling the whole chasis. Once we hit the power

switch every thing comes up fine. Then after a period of time we see the

no net issue again. showsc/showplatform reports everything ok. Each

switch sees the blades come up and the switch port comes up etc. Real

strange.

We are at the latest firmware:

SC's are at 1.2.8 (Nov 19 03)

switches are at 1.0.0.26

Blades are at v5.1.13-SUNW,Sun-Fire-B100x

and v5.1.12-SUNW,Sun-Fire-B100s.

Any advice?

Thanks

-Dan

[1519 byte] By [dbjelf] at [2007-11-25 22:46:31]