Adaptec 3940UW User's Guide Page 49
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3-11
Configuring Your Host Adapter
AHA-3940U/3940UW/3940UWD User’s Guide
Stock Number: 511041-00, Rev. B Page: 3-11
Print Spec Number: 494569-00
Current Date: 2/14/97 ECN Date: 2/17/97
Boot Channel
MultiChannel devices allow you to boot from either channel. Use
this option to identify the channel which should be scanned first
during bootup. The default is A First.
Boot Target ID
This option allows you to identify the SCSI device to be used as a
boot device. The range is 0 to 15; the default is 0.
Boot LUN Number
The AHA-3940U/3940UW/3940UWD supports up to eight logical
units. This option allows you to identify the Logical Unit Number
(LUN) to use during bootup. The default is 0.
SCSI Device Configuration
This option allows you to configure certain parameters of each SCSI
device on the SCSI bus. When you choose this option for the
AHA-3940UW/3940UWD, a screen similar to Figure 3-9 appears.
For the AHA-3940U, the screen differs in the Maximum Sync Trans-
fer Rate and the absence of Initiate Wide Negotiation.
Note:
The effective Maximum Sync Transfer Rate may differ
from the listed Maximum Sync Transfer Rate. See Maximum
Sync Transfer Rate on page 12.
Figure 3-9. SCSI Device Configuration Screen for AHA-3940U
Adaptec AHA-3940 Ultra/Ultra W SCSISelect(TM) Utility v1.22
SCSI Device Configuration
SCSI Device ID
Initiate Sync Negotiation ..........
Maximum Sync Transfer Rate...
Enable Disconnection...............
Initiate Wide Negotiation...........
Send Start Unit Command .......
Include In BIOS Scan................
#0 #1
yes
20.0
yes
yes
no
yes
#2
yes
20.0
yes
yes
no
yes
#3
yes
20.0
yes
yes
no
yes
#4
yes
20.0
yes
yes
no
yes
#5
yes
20.0
yes
yes
no
yes
#6
yes
20.0
yes
yes
no
yes
#7
yes
20.0
yes
yes
no
yes
Options Listed Below Have NO EFFECT if the BIOS is Disabled
yes
20.0
yes
yes
no
yes
SCSI Device Configuration
SCSI Device ID
Initiate Sync Negotiation ..........
Maximum Sync Transfer Rate...
Enable Disconnection...............
Initiate Wide Negotiation...........
Send Start Unit Command .......
Include In BIOS Scan...............
#8 #9
yes
20.0
yes
yes
no
yes
#10
yes
20.0
yes
yes
no
yes
#11
yes
20.0
yes
yes
no
yes
#12
yes
20.0
yes
yes
no
yes
#13
yes
20.0
yes
yes
no
yes
#14
yes
20.0
yes
yes
no
yes
#15
yes
20.0
yes
yes
no
yes
Options Listed Below Have NO EFFECT if the BIOS is Disabled
yes
20.0
yes
yes
no
yes
- AHA-3940U/3940UW/3940UWD 1
- AHA-3940U/3940UW/ 3
- GO ADAPTEC 4
- Contents 7
- 4 Operating System Support 8
- 5 Troubleshooting 9
- B Optimizing Performance 9
- C Disk Drives Over 1 GByte 9
- Print Spec Number: 494569-00 10
- Introduction 13
- Product Features 14
- PCI Bus Interface 15
- PCI-to-PCI Bridges 15
- Data Transfer Rates 15
- Disk Array Support 16
- Multiple Device Support 17
- Helvetica Italics 18
- Advisories 19
- Installing the Host Adapter 21
- Host Adapter Layout 22
- WARNING: 23
- Caution: 23
- Choosing SCSI Cables 25
- Maximum Cable Lengths 25
- Plug this end into the 26
- Plug this end into an 26
- 8-bit internal device 26
- Internal SCSI 28
- Colored Stripe 28
- External SCSI Cable 29
- External SCSI Connector 29
- (AHA-3940UWD has two 29
- External 30
- SCSI Cable 30
- External SCSI Device 30
- SCSI Cables 30
- Terminating the SCSI Bus 31
- Terminating the Host Adapter 32
- Host Adapter 33
- Termination 33
- Disabled 33
- Automatically 33
- SCSI IDs 34
- Setting SCSI IDs 35
- LED Connector J4 36
- LED Cable 36
- Configuring Your Host 39
- When to Use SCSI 41
- Starting SCSI 41
- Selecting a SCSI Channel 42
- Using the Options Menu 43
- =default) 44
- Host Adapter SCSI ID 45
- SCSI Parity Checking 46
- Host Adapter SCSI Termination 47
- Boot Device Options 48
- SCSI Device Configuration 49
- Saving Configuration Changes 55
- Format Disk 56
- Verify Disk Media 57
- Verify Disk 57
- Operating System Support 59
- Adaptec 7800 Family Manager 60
- Troubleshooting 61
- BIOS Startup Messages 62
- Other Problems and Solutions 66
- Multiple Computer 69
- Configuration 69
- Optimizing Performance 71
- Enabling Wide Negotiation 72
- Disabling the Channel BIOS 72
- Enabling SCSI Parity Checking 72
- Setting Enable Disconnection 72
- Disk Drives Over 1 GByte 75
- Than 1 Gbyte 76
- ▼ ▼ ▼ ▼ 77
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