Installation manual

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2.3 ExpressSAS BIOS Utility
The BIOS driver for the ATTO ExpressSAS storage controllers has a built-in BIOS Utility which manages the
adapter and the devices connected to the adapter.
The ExpressSAS BIOS Utility uses a standard
menu/choice model. The
Main Menu presents the
functions available from the utility. Selecting an item
on the menu may bring up a secondary menu or a
dialog box. The dialog box displays the items
managed by that dialog box.
Accessing the SAS utility
1 During the ExpressSAS BIOS driver startup
after the adapter boot string displays, press
Ctrl-Z at the prompt. If you do not press Ctrl-Z
within 3 seconds, you must reboot and try
again.
2The SAS BIOS Configuration Utility starts
and displays the following menu:
1. Configure Adapter Settings (refer to
Configuring adapter settings
on page 78)
2. Display Drive List (refer to Display
ing the
drive list (ExpressSAS RAID adapter only) on
page 79)
3. Configure RAID groups (refer to Configur
ing
RAID groups (ExpressSAS RAID adapter only)
on page 79)
4. Exit
Configuring adapter settings
The Configure Adapter Settings menu displays:
1 Edit Adapter Settings: customizes the
ExpressSAS adapter settings.
2 Reset All Parameters to Defaults: resets the
ExpressSAS adapter settings to the factory
default.
3 Save Settings and Return to Main:
permanently saves the adapter settings and
returns to the Main Menu.
4 Discard Settings and Return to Main:
discards any changes to the adapter settings
and retains the original settings.
Selecting the Configure Adapter Settings page
displays information about the ExpressSAS adapter,
including:
Adapter #: allows you to select a specific
ExpressSAS adapter from a list of installed
ExpressSAS adapters.
Model: displays the model number of the selected
ExpressSAS adapter.
FW Version: displays the firmware version of the
selected ExpressSAS adapter.
SAS Addr: displays the SAS Address assigned to
the selected ExpressSAS adapter.
Select the following functions from this menu:
Boot Driver
Choices: enabled, scan only, disabled
Default: disabled
If enabled and disk drives are detected during the bus
scan, the BIOS driver remains resident. If disabled, the
BIOS starts, resets the adapter chip and unloads the
driver. If
Scan Only is selected, the BIOS driver scans the
bus and displays the devices attached, then unloads itself
after a brief delay.
Device Wait Time
Choices: 1-255 seconds
Default: 3
This field specifies the number of seconds which the
driver waits for devices to appear.
Device Wait Count
Choices: 1-255 devices
Default: 1
This field specifies the number of devices which must
appear in order to cancel the Device Wait period.
Spinup Delay
Choices: 0-20 seconds
Default: 0
Specifies the number of seconds each SAS port waits for
disk drives to spin up.