RAID 50: a combination of RAID 0 and RAID 5

RAID 50 uses distributed parity and disk striping. A RAID 50 drive group is a spanned drive group in which data is striped across multiple RAID 5 drive groups. RAID 50 works best with data that requires high reliability, high request rates, high data transfers, and medium-to-large capacity.

Note: Having virtual drives of different RAID levels, such as RAID 0 and RAID 5, in the same drive group is not allowed. For example, if an existing RAID 5 virtual drive is created out of partial space in an array, the next virtual drive in the array has to be RAID 5 only.

RAID 50 requires a minimum number of six hard disk drives.

For detailed information about RAID, refer to “Introduction to RAID” in the MegaRAID SAS Software User Guide on the documentation DVD that comes with your server.

RAID for your server

This topic provides information about the RAID supported by your server.

Your server supports the following two types of RAID configurations:

Onboard SATA software RAID configuration using the LSI Software RAID Configuration Utility program; and RAID management using the MegaRAID Storage Manager program

The onboard SATA software RAID controller is integrated in the Intel C202 chip on the system board. If your server has SATA hard disk drives that are connected to the system board, you can use the LSI Software RAID Configuration Utility program to configure RAID. Your server supports onboard SATA software RAID levels 0, 1, and 10. You can also activate RAID level 5 by installing a ThinkServer SATA Software RAID 5 activation key. See “Installing or removing the ThinkServer SATA Software RAID 5 Key” on page 102.

You can install and use the MegaRAID Storage Manager program to manage the RAID array and RAID controller in an operating system environment.

For detailed information, see “Configuring the onboard SATA software RAID” on page 74.

Advanced SATA/SAS hardware RAID configuration using the WebBIOS Configuration Utility program; and RAID management using the MegaRAID Storage Manager program and the MegaCLI Configuration Utility program (requires a RAID card)

Some server models come with a required RAID card to provide advanced SATA/SAS hardware RAID functions to the server. You can also purchase the RAID card from Lenovo and install it into server models that support the RAID card to get advanced SATA/SAS hardware RAID functions. See “RAID card” on page 33 and “Installing or removing the RAID card” on page 98 for more information.

Note: For server models with more than four hard disk drives or models that use SAS hard disk drives, there must be a RAID card installed.

The RAID card provides the WebBIOS Configuration Utility program to help you configure RAID independently of the operating system. You can also install the MegaRAID Storage Manager program and the MegaCLI Configuration Utility program to help you manage the RAID array and RAID controller in an operating system environment. The supported RAID levels are RAID 0, 1, and 10. To activate RAID

5 and 50 levels, you need to install a RAID 5 key on the RAID card. See “Installing or removing the ThinkServer 9240-8i RAID 5 Upgrade Key” on page 100.

For detailed information, see “Configuring the advanced SATA or SAS hardware RAID” on page 79.

Note: The ThinkServer EasyStartup program simplifies the process of configuring supported RAID and installing supported operating systems and device drivers.

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Lenovo 389, 441, 393, 392, 391, 388, 387, 390 manual RAID for your server

389, 441, 388, 392, 391 specifications

Lenovo has established itself as a leader in the tech industry, particularly in the realm of laptops and PCs. Among its impressive lineup, the Lenovo series 387, 390, 393, 391, and 392 stands out for their innovative features, robust performance, and user-centric designs. These models cater to a range of users, from casual users to professionals who require high performance and reliability.

The Lenovo 387 is designed with versatility in mind. It comes equipped with an Intel Core processor that delivers snappy performance suitable for everyday tasks and even some heavy lifting with multimedia applications. The display features vibrant colors, making it perfect for streaming media or working on graphic design. Additionally, the 387 incorporates Lenovo’s advanced thermal management technology that ensures efficient cooling, preventing the device from overheating during intensive tasks.

Moving on to the Lenovo 390, this model emphasizes portability without compromising power. Weighing significantly less than its counterparts, the 390 is ideal for users who are always on the go. Its long-lasting battery life means users can stay productive throughout the day without searching for a power outlet. The 390 also features a high-resolution touchscreen, enhancing user interaction and providing a modern computing experience.

The Lenovo 393 further amplifies productivity features with its emphasis on connectivity. It comes with multiple USB ports, an HDMI output, and cutting-edge Wi-Fi technology for seamless networking. This model also boasts Lenovo's proprietary software, which simplifies file sharing and enhances collaboration, making it a strong choice for team-oriented projects.

For users interested in superior graphics and gaming performance, the Lenovo 391 is equipped with a dedicated GPU. This feature allows it to handle the latest games and graphic-intensive applications seamlessly. With an expansive display and high refresh rate, users can enjoy an immersive visual experience. Moreover, its customizable RGB backlit keyboard adds a touch of personalization.

Finally, the Lenovo 392 represents the pinnacle of balance between high-end features and affordability. It integrates smart AI capabilities that optimize device performance based on user habits, ensuring that it runs at optimal capacity. The 392 also prioritizes security with biometric login options and integrated privacy features, making it a trustworthy choice for sensitive tasks.

In summary, Lenovo's 387, 390, 393, 391, and 392 models showcase the brand's commitment to innovation, performance, and user satisfaction. Each model targets specific needs, ensuring that there is a suitable option for every type of user, from students to professionals and gamers. With advanced technologies and thoughtful designs, Lenovo continues to set the standard in the competitive laptop market.