Accusys ExaRAID GUI - Manual (Page 97)

Using the RAID GUI
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2.8 Hardware Configurations
2.8.1 Hard disks
In this section, you can configure the following settings to all hard disks.
Utilities Task Priority: Low (default) / Medium / High
This option determines the priority of the background tasks for utilities
of all hard disks not belonging to any disk group, such as scrubbing
and cloning.
SMART Warning: On / Off (default)
This option is only for SMART function supported hard disks. The SMART
function serves as a device status monitor.
Period of SMART Polling (minute): 60 (default)
This option is only available when the SMART warning is turned on.
Specify the period in minutes to poll the SMART status from hard disks
periodically.
SMART Action: Alert (default) / Clone
This option is only available when the SMART warning is turned on. The
controller will alert you or start disk cloning when a disk reports a
SMART warning.
Disk IO: timeout after 30 (default) sec(s) and retry 1 (default) time(s)
Timeout value (in unit of seconds): If a hard disk does not respond to
a command within this time, the controller will reset and reinitialize
the hard disk, and retry the command. The possible values are 1 to
60.
Retry times: Specify the number of retries when a disk IO command
fails. The possible values are 0 to 8.
Transfer Speed: Auto (default) / 1.5GB / 3GB
This option specifies the transfer speed of a hard disk. When Auto is
specified, the transfer speed is determined by the controller
according to the best transfer mode supported by the installed hard
disks.The option is available only for RAID controller with SATA disk
interface.
Bad Block Alert: On / Off (default)
This option enables or disables event alerts for bad block
reallocation. After selecting On, four blank fields are displayed for
you to specify the percentages of reserved bad block reallocation
space. The default values are 20, 40, 60, and 80.