Lenovo 26AMR5 Hardware Maintenance Manual page 49

• An AVAGO MegaRAID adapter is installed in your computer.
• The storage drives used for RAID configuration are connected to the installed AVAGO MegaRAID adapter
instead of the system board.
Storage drive requirements for RAID levels
Your computer supports the following RAID levels:
• RAID 0: striped disk array
– Consists of at least two SATA or Serial Attached SCSI (SAS) storage drives
– Supported strip size: 64 KB, 128 KB, 256 KB, 512 KB, or 1 MB
– Better performance without fault tolerance
• RAID 1: mirrored disk array
– Consists of two or four SATA or SAS storage drives
– Improved read performance and 100% redundancy
• RAID 10: striped and mirrored disk array (a combination of RAID 0 and RAID 1)
– Consists of four SATA or SAS storage drives
– Data being striped across storage drive groups
– Provides both high data transfer rates and complete data redundancy
• RAID 5: block-level striped disk array with distributed parity
– Consists of at least three SATA or SAS storage drives
– Supported strip size: 64 KB, 128 KB, 256 KB, 512 KB, or 1 MB
– Better performance and fault tolerance
– Available only on selected models of AVAGO MegaRAID adapters
• RAID 6: block-level striped disk array with dual distributed parity
– Consists of at least four SATA or SAS storage drives
– Supported strip size: 64 KB, 128 KB, 256 KB, 512 KB, or 1 MB
– Better performance and fault tolerance that can stand up to loss of two storage drives
– Available only on selected models of AVAGO MegaRAID adapters
Create a RAID volume
Attention: All the existing data stored on the selected drives will be erased while the RAID volume is being
created.
To create a RAID volume:
1. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1.
2. Select Advanced ➙ AVAGO MegaRAID Configuration Utility and press Enter.
3. Select Main Menu and press Enter.
4. Select Configuration Management and press Enter.
5. Select Create Virtual Drive and press Enter.
6. Select and configure the options one by one.
a. Select RAID Level: You can set the RAID level to one of the following:
• RAID0
• RAID1
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Chapter 5 RAID