Ibm RS/6000 User Manual Page 67

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Figure 12. Installing Hot-Swap
The second (feature #6421) and the third (feature #6422) backplanes are installed
in banks D and E, respectively. The features, #6421 and #6422, contain all of the
necessary hardware to completely enable up to six hot-swap disks to be installed in
the machine: the backplane, the power cable, the SCSI controller, the SCSI cable,
and mounting hardware.
The F30 default configuration is to control bank C's hot-swap disks and the
removable media devices (CD-ROM and so forth) with the integrated SCSI-2
Fast/Wide controller. For improved performance, an optional PCI SCSI-2 SE
Fast/Wide adapter (feature #2408 or equivalent) can be installed to provide an
independent SCSI bus for Bank C's disk drives. Feature #2446 provides the
necessary cable to control bank C's disks from this optional SCSI adapter.
3.1.2 Hot-Swap Bays and Banks
For a disk drive to be installed in one of the hot-swappable bays, the disk must use
a hot-swappable carrier.
Each hot-swap bank contains six bays and can accommodate three full-height disk
drives/carriers or six half-height disk drives/carriers. A combination of half- and
full-height disk drives/carriers is possible.
Hot-swap bays are numbered from 1 to 6 from left to right. SCSI IDs ranging from
8 to 13 are assigned automatically from left to right. When disks are installed in the
carriers, their SCSI ID jumpers have to be removed. The hot-swap bay SCSI ID
numbering is shown in Figure 13 on page 44.
Chapter 3. Hot-Swap Subsystem 43
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