15 ATTO Technology Inc. ATTO ExpressSAS Host & RAID Adapter Installation and Operation Manual
9
In the RAID panel in the right pane, create RAID
groups as necessary to expose a boot disk to
the system.
10 For each ATTO product channel, in the NVRAM
panel in the right pane, set the 'Boot Driver'
option to 'Enabled' and commit the new
settings.
11 Close the ATTO ConfigTool.
12 Launch OS X Disk Utility.
13 Configure and partition the ATTO-attached
disk(s) as you wish using the 'RAID' and
'Partition' panels to prepare a volume for
booting.
14 Using the 'Restore' panel, copy the currently
booted OS X volume to the ATTO-attached
volume. Drag and drop the source and
destination volumes from the left panel and
click the 'Restore' button.
15 Close Disk Utility.
16 Launch OS X System Preferences and select
the Startup Disk preference pane.
17 Select the ATTO-attached boot volume and
click 'Restart...'
18 Your system is now booted from the ATTO-
attached volume.
Driver Settings
A system NVRAM variable, atto-args-esasraid2
(atto-args-esashba2 for H6xx products), can be
used to change the behavior of the ExpressSAS
driver. The options are as follows:
-e [mask]
Specify the hexadecimal event mask for event
logging, defaults to 0x00000001. See the Driver
Events section for more details.
Changing Driver Settings in OS X
1
Open a Terminal window.
2
At the prompt, enter the command 'sudo nvram
atto-args-esasraid2="[options]"' ('sudo nvram
atto-args-esashba2="[options]"' for H6xx
products) where [options] are listed above. If
you are not the root user, you will be prompted
for an administrator password.
3
Reboot the system for the changes to take
effect.
Note
These options are stored in system NVRAM;
therefore they persist across reboots.
Resetting the system NVRAM by pressing
and holding P+R during
boot will remove the options.
You can view the current options in OS X by
opening a Terminal window and entering
'nvram atto-args-esasraid2'('nvram atto-
args-esashba2' for H6xx).
You can remove the options in OS X by
opening a Terminal window and entering
'sudo nvram -d atto-args-esasraid2' ('sudo
nvram -d atto-args-esashba2' for H6xx).
