HP Disk System 2300 HP StorageWorks Disk System 2300 User's Guide(This manual - Page 85
Setting DIP Switches, DIP Switch Settings
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Configuration Setting DIP Switches Two DIP switches on left slot BCC determine bus architecture and some bus behavior. If that BCC is removed, then the DIP switches on the other BCC define the bus. See Table 8 for a description of switch settings. Table 8. DIP Switch Settings Switch Bank 1 Off - | ON = 0 1 Full Bus 2 SES/SAF-TE Creates a single bus of up Splits the bus into two to 14 disk drives buses, up to 7 disk drives each SAF-TE Mode (SAF-TE mode is the default. For HP-UX using EMS, set to SES) SES mode Switch Bank 2 Off - | ON = 0 1 Bus Reset: Hot Swap Disk Automatically issues a SCSI bus reset when a disk is removed or inserted Lets the host detect change and determine action 2 Bus Reset: Power Fail Issues a SCSI reset when the power supply/fan module indicates it will go offline 3 Bus Reset: Hot Swap BCC Automatically issues a SCSI bus reset when a BCC is removed or inserted Lets the host detect change and determine action Note The switch settings on both BCCs must match. If the disk system is being connected to an HP-UX system, the switch should be set to SES mode. If the disk system is being connected to a Netserver, the switch should be set to SAF-TE mode. If the BCC self-test detects any discrepancy, the buzzer sounds 4 or 5 times, and the BCC fault and system fault LEDs flash. If the system is starting up, the disks do not spin up. If the system is operating, the disks and second BCC continue to operate. Configuration 85