IBM SG24-4576-00 User Manual
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┌────────────────────
SCSI Device Configuration
──────────────────────┐
│
│
│ SCSI Device ID
#0
#1
#2
#3
#4
#5
#6
#7
│
│ ───────────────────────────────────────────────────────────────────── │
│ Initiate Sync Negotiation
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
│
│ Max Sync Transfer Rate
10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 │
│ Enable disconnection
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
│
│ Initiate Wide negotiation
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
│
│ ──── Options listed below have NO EFFECT if the BIOS is disabled ──── │
│ Send start init command
No
No
No
No
No
No
No
No
│
│ Include in BIOS Scan
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
│
│
│
│ SCSI Device ID
#8
#9
#10
#11
#12
#13
#14
#15
│
│ ───────────────────────────────────────────────────────────────────── │
│ Initiate Sync Negotiation
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
│
│ Max Sync Transfer Rate
10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 │
│ Enable disconnection
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
│
│ Initiate Wide negotiation
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
│
│ ──── Options listed below have NO EFFECT if the BIOS is disabled ──── │
│ Send start init command
No
No
No
No
No
No
No
No
│
│ Include in BIOS Scan
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
│
│
│
└───────────────────────────────────────────────────────────────────────┘
Figure 36. PC Server 320 SCSI Select Utility Program - SCSI Device Configuration
To modify settings on this screen:
•
Use the arrow keys to select the parameter to modify.
•
Press Enter to edit the value.
•
Use the arrow keys to select the new value or press Esc to quit.
•
Press Enter to validate the new value.
The fields in this screen are described below.
Initiate Sync Negotiation:
The host adapter always responds to synchronous
negotiation if the SCSI device initiates it. However, when this field is set to Yes,
the host adapter will initiate synchronous negotiation with the SCSI device.
Some older SCSI-1 devices do not support synchronous negotiation. Set Initiate
Sync Negotiation for these devices to avoid malfunction.
Maximum Sync Transfer Rate:
The default value is 10.0 MBps for SCSI-II Fast
devices. If you are using SCSI-II Fast/Wide devices, the effective maximum
transfer rate is 20.0 MBps.
Older SCSI-1 devices do not support fast data transfer rates. If the transfer rate
is set too high, this may cause your server to operate erratically or even hang.
Select 5.0 Mbps for any SCSI-I devices.
Enable Disconnection:
This option determines whether the host adapter allows
a SCSI device to disconnect from the SCSI bus (also known as the
Disconnect/Reconnect function).
You should leave the option set to Yes if two or more SCSI devices are
connected to optimize bus performance. If only one SCSI device is connected,
set Enable Disconnection to No to achieve better performance.
Send Start Unit Command:
Enabling this option reduces the load on your
server
′
s power supply by allowing the SCSI devices to power-up one at a time
when you boot the server. Otherwise, the devices all power-up at the same
time.
80
NetWare Integration Guide