XServe: Disks do not appear in disk utility

Hi,
I have the following problem with our Xserve (intel) with MacOS Server 10.6.4:
I have a bunch of firewire 800 external drives witch are daisy chained. They are configured as JBOD and were working just fine.
But suddenly they disappeared. I looked them up in the disk utility but coudnt find them there any more; but the system profiler still shows them in the FireWire tab.
This way it started: I cant attach external USB / FW Disks any more; they just do not appear in disk utility.
With another Mac I could verify that the disks are fine. The problem is with to the Xserve.
I even tred
Thanks in advance, Daniel

Hi Daniel,
Hope this doesn't sound silly but is the xserve locked or unlocked? If it is locked you need to unlock it for the disks to mount.
Hope that helps
Beatle

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