Lenovo 30D2 - RAID Level; Configuring the System BIOS to Enable SATA RAID Functionality; Configuring RAID in UEFI Mode

When a group of independent physical storage drives is set up to use RAID technology, they are in a RAID
array. This array distributes data across multiple storage drives, but the array appears to the host computer
as one single storage unit. Creating and using RAID arrays provides high performance, such as the expedited
I/O performance, because several drives can be accessed simultaneously.
RAID drive groups configured according to certain RAID levels also improve data storage reliability and fault
tolerance compared with single-drive storage systems. Data loss resulting from a drive failure can be
prevented by reconstructing missing data from the remaining drives.
Note: For RAID 0, the missing data resulting from a drive failure cannot be reconstructed.
RAID Level
Your computer must have the minimum number of SATA storage drives installed for the supported level of
RAID below:
• RAID 0: striped disk array
– Consists of at least two SATA storage drives
– Supported strip size: 4 KB, 8 KB, 16 KB, 32 KB, 64 KB, or 128 KB
– Better performance without fault tolerance
• RAID 1: mirrored disk array
– Consists of two SATA storage drives
– Improved reading performance and 100% redundancy
To install an additional storage drive, refer to “Storage drive cage” on page 84.
Configuring the system BIOS to enable SATA RAID functionality
This section describes how to configure the system BIOS to enable SATA RAID functionality.
Note: Use the arrow keys on the keyboard to make selections.
To enable SATA RAID functionality, do the following:
1. Start the Setup Utility program. See “Starting the Setup Utility program” on page 33.
2. Select Devices ➙ ATA Drive Setup and press Enter.
3. Select Configure SATA as and press Enter.
4. Select RAID and press Enter.
5. Press F10 or Fn+F10 (depending on the keyboard) to save the new settings and exit the Setup Utility
program.
Configuring RAID in UEFI mode
This section provides instructions on how to configure RAID in UEFI mode.
Creating RAID volumes in UEFI mode
Attention: All the existing data stored on the selected drives will be erased while the RAID volume is being
created.
To create RAID volumes, do the following:
1. Start the Setup Utility program. See “Starting the Setup Utility program” on page 33.
2. Select Devices ➙ ATA Drive Setup and press Enter.
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P330 User Guide