IBM 866011U - Netfinity 5500 - 8660, Hardware Maintenance Manual

Page: 206 / 402

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Bays A and B come without a device installed. These
bays are for 5.25-inch, half-high, removable-media
drives, such as tape backup drives. Bays A and B
can be combined into a single full-high bay.
Ÿ
The Netfinity 5500 supports only one diskette drive.
Ÿ
The server does not support hard disk drives in bays
A and B because of cooling considerations.
Note
The server's EMI integrity and cooling are both
protected by having the left front bays
(removable-media bays) covered or occupied.
When you install a drive, save the filler panel
from the bay, in case you later remove the drive
and do not replace it with another.
Ÿ
If you are installing a device with a 50-pin connector
in one of the removable-media bays (bays A–B), you
need a 68-pin to 50-pin converter.
Ÿ
The server supports six slim (1-inch) or three
half-high (1.6-inch), 3.5-inch hot-swap hard disk
drives in the hot-swap bays.
Ÿ
The hot-swap bays connect to a SCSI backplane.
This backplane is the printed circuit board behind the
bay. The backplane supports up to six hard disk
drives.
Ÿ
The diskette drive uses 1 MB and 2 MB diskettes.
For optimum use, format 1 MB diskettes to 720 KB
and format 2 MB diskettes to 1.44 MB.
SCSI drives:
Some drives have a special design
called
small computer system interface, or SCSI. This
design allows you to attach multiple drives to a single
SCSI channel.
Notes
1. Any information about SCSI drives also applies to
other SCSI devices, such as tape drives.
2. If you plan to install both internal and external
SCSI devices, you must follow the instructions in
“External options” on page 165, in addition to the
instructions in this section.
A 16-bit (wide) SCSI cable connects the hot-swap
backplane to one channel of the integrated RAID SCSI
controller on the system board. An additional 16-bit SCSI
cable with connectors for optional devices in bays A and B
connects to the second channel of the RAID controller.
This cable has a terminator at the other end and is folded
and restrained with a cable clamp to the bottom of the
server between the open bays and the power supply area.
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Netfinity Server HMM