IBM 7013 J Series, Руководство оператора

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Description of the 7013 J Series System
1-5
Media Devices
The SCSI interface is the main bus for the mass storage devices and is used to connect
disk drives, tapes and optical disks.
The SCSI bus internal to the unit is etched or embedded on the back plane, so it supports
device connection through direct insertion, without cables.
All the internal devices are included in a mechanical carrier that enables the devices to be
directly connected to the back plane.
The carrier includes a SCSI converter board.
For the operator controls of the disk devices refer to “Using Internal Disk Drives” on page
2-47.
Base Unit
The base unit includes the basic SCSI device complex with 6 slots (SCSI bus A) and an
additional SCSI bus with 4 slots (SCSI bus B).
The media devices such as tape drives and CD-ROM drives are always located at the front
in the upper row of the base unit. This row can house three 5.25-inch half-high devices.
The lower device slots located at the front side are reserved for highly removable 3.5-inch
disk drives. See “Highly Removable Disks” on page 4-2, for more information about highly
removable disks.
Front View Rear View
Media
Devices
Disk
Devices
On the rear side of the system there are four 3.5-inch slots.
The disk devices connected to the slots at the rear of the unit should be accessed only for
maintenance or installation.
If you want to access the devices at the rear of your system unit, open the rear panel with
the operator panel key.
For more information about SCSI bus IDs and locating disk or media drives, see “Locating
a Disk or Media Drive” on page 4-4.