ERROR: Unable to write data to disk idad1

[Didier Wiroth]

Hi,

I run freebsd 5.2 on a compaq proliant ml 350 with raid smartarray 221 controller.

I'm running the system with two (hardware) virtual volumes (4 disks).

I tried to add a partition (with /stand/sysinstall) to idad1s1. This should become idad1s1f but when I try to "w"rite the changes to disk the following error appears:
"ERROR: Unable to write data to disk idad1!"
Unfortunately I'm not able to add any new partitions, why, what's wrong?

P.S I'm doing this over ssh network access, so please don't tell me I have to physically be present at the machine to restart in single mode ;-)

thx  a lot