Avago Technologies LSI SAS 3041E-R - Manual (Page 158)

8-20 SCSI EFI BIOS and Setup Utility
Version 1.3 Copyright © 2001, 2002, 2007 by LSI Logic Corporation. All rights reserved.
Scan LUNs > 0 Indicates whether to scan for LUNs greater than zero for a device. The default is
Yes. LUN zero is always queried. Set this option to No if you have problems with a
device that responds to all LUNs whether they are occupied or not. Also, if a SCSI
device with multiple LUNs exists on your system but you do not want all of those
LUNs to be available to the system, set this option to No. This will limit the scan to
LUN 0 only.
Disconnect Indicates whether to allow a device to disconnect during SCSI operations. The
default is On. Some (mostly newer) devices run faster with disconnect enabled, while
some (mostly older) devices run faster with disconnect disabled.
This field cannot be modified for Integrated Raid arrays.
SCSI Timeout Indicates the maximum amount of time [0 to 255] in seconds to wait for a SCSI
operation to complete. The default is 10 seconds. Because time-outs provide a
safeguard that allows the system to recover if an operation fails, LSI recommends
using a value greater than zero. A value of zero allows unlimited time for an
operation to complete and could result in the system hanging. To specify a new
timeout value, press Enter, type in a value, and press Enter again.
Queue Tags Allows the use of queue tags for a device. The Fusion-MPT SCSI BIOS does not
use queue tags. This item specifies queue tag control to higher level device drivers.
The default for this field is On.
Format Press Enter to low-level format the device. If enabled, this option allows low-level
formatting on a disk drive. Low-level formatting completely and irreversibly erases all
data on the drive.
You cannot select this field for Integrated Raid arrays.
Formatting defaults the drive to a 512-byte sector size, even if the drive was
previously formatted to another sector size.
Verify Highlight this field and press Enter to verify all sectors on the device and to reassign
defective Logical Block Addresses (LBAs).
You cannot select this field for Integrated Raid arrays.
Restore Defaults Highlight this field and press Enter to restore default settings for this device.
Table 8.8 SCSI Device Properties Field Descriptions (Cont.)
Field Description
Table 8.9 Data Transfer Rate Information
Megatransfers/s
Data Width = 8
(MB/s)
Data Width = 16
(MB/s)
Sync Period
(nsec)
0 = Async 0 = Async 0 = Async 0 = Async
5 5 10 200
10 10 20 100
20 20 40 50
40 40 80 25
80 80 160 12.5
160 (Default) 160 320 6.25