Toshiba Magnia Z500 - Manual (Page 186)

System Configuration Setup
Configuring MegaRAID IDE
167
NOTE: You cannot change the stripe size of an array that has
already been configured.
Bootable
This determines which of the configured arrays should be used for
booting the system when MegaRAID IDE is selected as the boot
device. The options are Yes or No.
You can select the boot device from the system BIOS setup. Only
one array is allowed to be bootable in a system.
Drive Size
This field cannot be edited. It displays the size of the array. When
the array type is stripe, the drive size is the total of all the drives
selected (one or more drives). When mirror, drive size is shown by
individual drive, and when spare pool, drive size shows the total
drive capacity.
STRIPE
32 KB
64 KB
128 KB
256 KB
512 KB
1024 KB
2048 KB
4096 KB
BOOT OPTION
YES
NO