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Hot Plug Backplane
Features
NCR S10XL Hot Plug Server User Guide D-1
Features
The hot plug wide SCSI backplane subsystem consists
of a BP-W8 backplane and drive trays that support wide
SCSI hard drives. It is specifically designed for a tower
housing (IDUN) and accommodates up to eight SCSI
drives.
The backplane subsystem has the following major
features:
• Hot Plug feature that allows replacement of a
defective hard drive even while the system is in full
operation
• Two LEDs on the SCSI drive front panel to indicate
power and drive failure
• Supports fast-and-wide (16-bit) devices
• Allows “split” and “combine” SCSI-channel
configurations
• Fixed 2.85-volt and controlled impedance of 90 ~ 110
ohms for more stable hard disk performance (For
ultra SCSI, the impedance is 90 ±10%)
• Supports other external SCSI devices that are not
directly connected to the backplane board