IBM 7212 102 User Manual

SCSI Bus Connectors
The 7212 Storage Enclosure provides two, 68 pin, rear mounted, SCSI bus
connectors 5 for attaching the 7212 Storage Enclosure to the host SCSI
bus. These two external SCSI connectors represent the two ends of the
internal SCSI bus cables. The internal SCSI bus cable can be configured to
support either a single SCSI bus with one host system or with a split SCSI
bus allowing SCSI connections to two hosts. Devices installed in the two
enclosure device bays are attached to the internal SCSI bus cables so that
the installed devices can be on a single or split SCSI bus.
Note: The SCSI interface mode (Low Voltage Differential or Single Ended)
that the 7212 Storage Enclosure will operate in, is dependent on the
type of drives installed in the 7212 Storage Enclosure and the host
system SCSI adapter type.
Fault
Signal USB Port
The rear of the 7212 Storage Enclosure has a Fault Signal USB Series B Port
7. This port is provided for installations that have provisions for remote
fault monitoring of devices. If the 7212 Storage Enclosure experiences a
fault condition (power loss or fan failure) the Pin 2 signal of the USB port
will go from a high state to a low state.
Notes:
1. The USB port pin 2 is an open collector and must be connected to a
monitoring receiver that is active for the port to have a valid output
signal.
2. Pin 2 signal voltage is dependent on the electrical design of the
monitoring receiver.
3. Pin 4 is ground.
4. Pins 1 and 3 are not connected.
Power
Cable Connector
The 7212 Storage Enclosure receives power through a cable connected to
the power cable connector 8.
Security Clip Hole
The 7212 Storage Enclosure can be secured to a rack or other stationary
object using a security cable and clips that are inserted into the security
clip hole 9 and then attached to a secure object. Contact your IBM
marketing representative or business partner to purchase a security cable.
System Requirement
The following sections describe the host system requirements for the 7212 Model
102 Storage Enclosure:
RS/6000 and pSeries Systems
The 7210 Model 025 DVD-RAM Drive requires a host system platform with an AIX
operating system at level 4.3.3 with update CD LCD4-0995-14 or AIX level 5.1 with
update CD LCD4-1103-01 or higher.
For a list of supported processors and adapters, contact your IBM marketing
representative or business partner.
Chapter 1. General Information 3

IBM 7212 102 Specifications

General

Brand	IBM
Model	7212 102
Category	Storage
Language	English