Thanks. I used information from this sites:
where they have installed ESXi in this product: HP ML110 G5.
Any issues so far running ESXi on ML110G5?
I installed at least 4 Maschines of the type ML110 G5 with the Esxi 3.5 U3 ... and they where running for quite some time. ( weeks without problems )
Yesterday I installed a ML110 G5 U4 !! and since than everything is different , ( First of all in Order to be able to install the ESXi 4 you have ! to change the settings in the bios form auto to STAT and Enable the RAID ) ( for U3 you have to DISABLE the Raid , in U4 ( as the device ist supported !) you have to ENABLE it.
I went back to the U3 release and gues What everthing works fine ...
If you Google for ML110 G5 Esxi U4 you will find some Information.
So I would say vmware just made some fine changes so that under U4 the ml110 G5 is not any longer usable .... WHY ?! Beats me ? ... There is also the Problem that they "fixed" the RCLI so that write and read is no longer possible , as descript in some blog.
In a Time where XEN Server is offering a wider variety of possiblities that step is in my Eyes not easy to "communicate" ;(