IBM 865951Y Hardware Maintenance Manual - Page 74

SCSI devices, SCSI IDs

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- One to a SCSI device you install in the open 5.25-inch bay A third connector attaches to the SCSI connector on the system board. External SCSI devices usually come with a SCSI cable. You attach one end of this SCSI cable to the SCSI connector on the back of the server, and the other end to the SCSI device. You usually can attach additional SCSI devices to this cable. SCSI devices: The Netfinity 5000 supports drives that comply with American National Standards Institute (ANSI) SCSI Standards X3.131-1986 (SCSI), X3.131-1994, (SCSI-2), X3.277-1996 (SCSI-3 Fast-20 parallel interface), and X3.253-1995 (SCSI-3 parallel interface). For a complete list of the SCSI devices supported on the Netfinity 5000, go to http://www.ibm.com/support/ on the World Wide Web. If you install additional SCSI devices, you must set a unique identification (ID) for each SCSI device. This enables the SCSI controller to identify the devices and ensure that different devices do not attempt to transfer data at the same time. Note Any information about SCSI drives also applies to other SCSI devices, such as scanners and printers. SCSI IDs: If you install SCSI devices, you must set a unique identification (ID) for each SCSI device that you connect to the server. This enables the SCSI controller to identify the devices and ensure that different devices do not attempt to transfer data at the same time. The SCSI controller in the server supports SCSI IDs 0 to 15; ID 7 is reserved for the controller, ID 14 is reserved for the daughterboard (SAF-TE) on the DASD backplane. Use the SCSISelect Utility program to view the SCSI IDs of SCSI devices in the server. (See "Using the SCSISelect utility program" on page 52 for more information.) Note A daughterboard is a secondary adapter that can be plugged into another adapter or the system board. The SAF-TE daughterboard on the DASD backplane makes available the status information about the DASD drives that meet the following conditions: The drives are part of a RAID environment The status information comes from a supported IBM RAID adapter 66 Netfinity Server HMM

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–
One to a SCSI device you install in the open
5.25-inch bay
A third connector attaches to the SCSI connector on
the system board.
External SCSI devices usually come with a SCSI cable.
You attach one end of this SCSI cable to the SCSI
connector on the back of the server, and the other end to
the SCSI device.
You usually can attach additional SCSI
devices to this cable.
SCSI devices:
The Netfinity 5000 supports drives
that comply with American National Standards Institute
(ANSI) SCSI Standards X3.131-1986 (SCSI), X3.131-1994,
(SCSI-2), X3.277-1996 (SCSI-3 Fast-20 parallel interface),
and X3.253-1995 (SCSI-3 parallel interface).
For a complete list of the SCSI devices supported on the
Netfinity 5000, go to http://www.ibm.com/support/ on the
World Wide Web.
If you install additional SCSI devices, you must set a
unique identification (ID) for each SCSI device.
This
enables the SCSI controller to identify the devices and
ensure that different devices do not attempt to transfer
data at the same time.
Note
Any information about SCSI drives also applies to
other SCSI devices, such as scanners and printers.
SCSI IDs:
If you install SCSI devices, you must set a
unique identification (ID) for each SCSI device that you
connect to the server.
This enables the SCSI controller to
identify the devices and ensure that different devices do
not attempt to transfer data at the same time.
The SCSI controller in the server supports SCSI IDs 0 to
15; ID 7 is reserved for the controller, ID 14 is reserved for
the daughterboard (SAF-TE) on the DASD backplane.
Use the SCSISelect Utility program to view the SCSI IDs
of SCSI devices in the server.
(See “Using the SCSISelect
utility program” on page
52 for more information.)
Note
A daughterboard is a secondary adapter that can be
plugged into another adapter or the system board.
The SAF-TE daughterboard on the DASD backplane
makes available the status information about the
DASD drives that meet the following conditions:
±
The drives are part of a RAID environment
±
The status information comes from a supported
IBM RAID adapter
66
Netfinity Server HMM