Lenovo ThinkStation D20 Hardware Maintenance Manual - Page 55

Entering the Marvell BIOS Setup to con SAS RAID - bios key

Page 55 highlights

• RAID Level 0 - Striped disk array - Two hard disk drives minimum - Better performance without fault tolerance • RAID Level 1 - Mirrored disk array - Two hard disk drives minimum - Improved read performance and 100% redundancy • RAID Level 5 - Block-level striped disk array with distributed parity - Three hard disk drives minimum - Data striped at the byte level - Stripe error correction information - Better performance and fault tolerance To install a new SAS hard disk drive, refer to the installation procedure in "Replacing a hard disk drive" in the ThinkStation Hardware Installation and Replacement Guide. Entering the Marvell BIOS Setup to configure SAS RAID This section describes how to enter the Marvell BIOS Setup to configure SAS RAID. 1. Your computer must have a Marvell SAS adapter card (Marvell SAS controller) installed to configure SAS RAID. For installing or replacing a Marvell SAS adapter card, refer to "Replacing an adapter card" in the ThinkStation Hardware Installation and Replacement Guide. 2. Turn on the computer after you have installed the required number of SAS hard disk drives and the Marvell SAS adapter card. 3. Press Ctrl+M when prompted to enter the Marvell BIOS Setup to configure SAS RAID. Configuring the Marvell BIOS Setup to enable SAS RAID 0, 1, or 5 functionality To enable SAS RAID 0, 1, or 5 functionality, use the Marvell BIOS Setup configuration utility as the SAS configuration utility. This utility assumes that the system has the required number of hard disk drives. 1. Turn on your computer and press Ctrl+M when prompted to enter the Marvell BIOS Setup. 2. On the Marvell BIOS Setup screen, use the arrow keys to select RAID Config and press Enter. The RAID Config menu opens. 3. From the RAID Config menu, select Create array. 4. Use the arrow keys and the Enter key to select each free hard disk drive that you want to include in the array. 5. Select Next and press Enter. 6. From the Create array menu, select RAID level and press Enter. Note: Only the valid RAID levels will be active. 7. Select the SAS RAID level you want (RAID 0, RAID 1, or RAID 5) and press Enter. 8. From the Stripe size menu, you can change the stripe size or keep it as default. 9. Type a proper array name in the Array name field. 10. Select Next and press Enter. When prompted, press Y to complete the array creation and RAID configuration. Chapter 7. Installing hard disk drives and configuring RAID (types 4105, 4157, 4217) 47

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RAID Level 0 – Striped disk array
Two hard disk drives minimum
Better performance without fault tolerance
RAID Level 1 – Mirrored disk array
Two hard disk drives minimum
Improved read performance and 100% redundancy
RAID Level 5 – Block-level striped disk array with distributed parity
Three hard disk drives minimum
Data striped at the byte level
Stripe error correction information
Better performance and fault tolerance
To install a new SAS hard disk drive, refer to the installation procedure in “Replacing a hard disk drive” in the
ThinkStation Hardware Installation and Replacement Guide
.
Entering the Marvell BIOS Setup to configure SAS RAID
This section describes how to enter the Marvell BIOS Setup to configure SAS RAID.
1. Your computer must have a Marvell SAS adapter card (Marvell SAS controller) installed to configure
SAS RAID. For installing or replacing a Marvell SAS adapter card, refer to “Replacing an adapter card”
in the
ThinkStation Hardware Installation and Replacement Guide
.
2. Turn on the computer after you have installed the required number of SAS hard disk drives and the
Marvell SAS adapter card.
3. Press Ctrl+M when prompted to enter the Marvell BIOS Setup to configure SAS RAID.
Configuring the Marvell BIOS Setup to enable SAS RAID 0, 1, or 5
functionality
To enable SAS RAID 0, 1, or 5 functionality, use the Marvell BIOS Setup configuration utility as the SAS
configuration utility. This utility assumes that the system has the required number of hard disk drives.
1. Turn on your computer and press Ctrl+M when prompted to enter the Marvell BIOS Setup.
2. On the Marvell BIOS Setup screen, use the arrow keys to select
RAID Config
and press Enter. The
RAID Config
menu opens.
3. From the
RAID Config
menu, select
Create array
.
4. Use the arrow keys and the Enter key to select each free hard disk drive that you want to include
in the array.
5. Select
Next
and press Enter.
6. From the
Create array
menu, select
RAID level
and press Enter.
Note:
Only the valid RAID levels will be active.
7. Select the SAS RAID level you want (
RAID 0
,
RAID 1
, or
RAID 5
) and press Enter.
8. From the
Stripe size
menu, you can change the stripe size or keep it as default.
9. Type a proper array name in the
Array name
field.
10. Select
Next
and press Enter. When prompted, press Y to complete the array creation and RAID
configuration.
Chapter 7
.
Installing hard disk drives and configuring RAID (types 4105, 4157, 4217)
47