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U41243-J-Z156-1-76 93
System expansions SCSI hard disk drives
If you want to swap a SCSI hard disk drives during operation, proceed as
follows:
Ê Pull the hard disk drive which is indicated as defective out a few centimeters.
Ê Wait at least 60 seconds. This is necessary so that the RAID controller can
detect that a hard disk drive has been pulled out and the hard disk drive has
time to stop turning.
Ê Pull the hard disk drive all the way out.
Ê Insert the new hard disk drive.
If a hard disk drive has been removed and no new drive is installed in its place,
then install a dummy cover in the empty bay. Make sure that the dummy cover
engages properly in the bay.
The SCSI IDs of the hard disk drive slide-in modules are permanently assigned
(see also section “Addresses for SCSI devices” on page 117).
The following applies if SCSI hard disk drives are operated on a RAID controller:
– RAID level 0
Rebuild is not possible. If a hard disk drive fails, its data is lost.
– RAID level 1 without standby hard disk drive
Rebuild on the new disk is carried out automatically when the old disk is
swapped.
– RAID level 1 with standby hard disk drive
A standby hard disk drive is automatically enabled as a replacement for the
defective hard disk drive and the data of the defective disk is rebuilt on the
standby disk.
Ê Read the documentation for the new hard disk drive.