System expansions
Installing and removing a SCSI hard disk drive
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A26361-K412-Z107-3-7619
Installing and removing a SCSI hard disk drive
The server can accommodate six carriers for 3 1/2-inch hard disk drives. A Fast-
Wide SCSI hard disk drive or an Ultra-Wide SCSI hard disk drive with an SCA
interface and a maximum height of 1.6 inch can be installed in each carrier.
If the SCSI hard disk drive is operated on a disk array controller (DAC) and
belongs to a disk array operated with RAID level 1 or level 5, it is not necessary to
switch off the system in order to swap a hard disk (hot replace). To swap a hard
disk, you need an SCSI hard disk drive with the same or higher capacity. A rebuild
on the new hard disk is performed automatically after disk swap. A precondition is
that the DAC is correctly configured. Refer to the information in the DAC manual.
!
If you want to swap several SCSI hard disk drives during operation,
proceed as follows:
•
Swap the first SCSI hard disk drive.
•
Wait until the hard disk drive access indicator no longer flashes
green-yellow.
•
Swap the next SCSI hard disk drive etc.
The SCSI-ID is allocated via the SCSI platter (see "
").
The following applies if the SCSI hard disk is operated on a DAC:
RAID level 0 and 7
Rebuild is not possible. If a hard disk fails, its data is lost.
RAID level 1 and 5 without standby hard disk
Rebuild on the new disk is carried out automatically when the old disk is swapped.
RAID level 1 and 5 with standby hard disk
A standby hard disk is automatically enabled as a replacement for the defective
hard disk and the data of the defective disk is rebuilt on the standby disk.
