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U41604-Z156-1-76 Options Guide 29
Accessible drives Installing the hard disks extension box
6.2 Installing the hard disks extension box
In the SCSI version the two lower 5.25 inch bays for accessible drives can be
used to install a HDD extension box. But it is required that the server is equipped
with a 1- or 2-channel RAID controller.
I It is not allowed to operate the hard disks of the HDD extension box
together with the internal hard disks via one common SCSI line.
If the server has a RAID controller and a corresponding RAID configuration,
defective hard disk modules can also be exchanged during operation.
Ê Open the server and remove the front cover or rack front cover as described
in the chapter “Preparation” on page 13 et seqq. .
I The hard disks extension box is supplied without EasyClick rails. You
need 8 M3 screws. Before installing a new hard disks extension box you
must therefore remove the EasyClick rails from the two dummy covers
and mount two of the four EasyClick rails on the hard disks extension
box.
Ê Remove the dummy covers from the two lower 5.25-inch bays for accessible
drives:
Ê Press the two metal tongues of the EasyClick rails inward (1) until the
locking mechanism is released.
Ê Remove the dummy cover from the bay.
Ê Remove the EasyClick rails from the two dummy covers by removing the four
screws on each side.
I Note that there are two M3 screws and two UNC screws on each side.
V CAUTION!
Keep the dummy covers for future use. If you remove the hard disks
extension box again and do not replace it with new drives, the dummy
covers must be reinstalled to comply with EMC regulations and to
satisfy cooling requirements and fire protection measures.