IBM 866251Y - Netfinity 5500 M20, Hardware Maintenance Manual

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Each hot-swap drive bay has two indicator lights on the
front of the server (see “Information LED panel” on
page 205). If the amber Hard Disk Status light for a drive
is lit continuously, that individual drive might be faulty and
needs to be checked. See “ServeRAID system board
controller” on page 66. When the Hard Disk Status light
indicates a drive fault, you can replace a hot-swap drive
without turning off the server.
Each hot-swap drive that you plan to install must have a
hot-swap-drive tray attached. The drive must have a
single connector attachment (SCA) connector.
Hot-swap-drive trays come with the hot-swap drives.
Ÿ
The server comes with a preinstalled 3.5-inch,
1.44 MB diskette drive and a preinstalled IDE
CD-ROM drive.
Ÿ
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 M20 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.
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