Chapter 6: MegaRAID Window and Menus

Make sure the capacity of the hotspare drive is equal to or larger than the capacity of the disks in the array and that it is the same type of drive (SAS or SATA).

NOTE: The hotspare drive will rebuild a failed drive even if it is SAS and the array drives are SATA, or vice versa. Once the rebuild is complete, it is recommended that you replace the new array member with a drive of the same type.

To remove a global hotspare disk, follow these steps:

1.In the left panel of the MEGARAID STORAGE MANAGER window, select a hotspare drive.

2.Click on the OPERATIONS tab of the MEGARAID STORAGE MANAGER window to display the tab (Figure 6-10).

3.In the left pane of the tab, select the REMOVE GLOBAL HOTSPARE option.

4.Press the Go button.

This brings up a dialog box for you to confirm your deletion.

5.Check CONFIRM in the dialog box and then press OK to confirm your deletion.

6-5 Changing Adjustable Task Rates

Follow these steps if you need to change the adjustable rates for rebuilds and other system tasks that run in the background:

NOTE: It is recommended that you leave the adjustable task rates at their default settings to achieve the best system performance. If you raise the task rates above the defaults, foreground tasks will run more slowly and it may seem that the system is not responding. If you lower the task rates below the defaults, rebuilds and other background tasks may run very slowly and may not complete within a reasonable time. If you decide to change the values, record the original default value here so you can restore them later, if necessary:

Rebuild Rate: ____________

Background Initialization (BGI) Rate: ____________

Check Consistency Rate: ____________

1.Select the PHYSICAL VIEW tab in the left panel of the MEGARAID STORAGE MANAGER window, and select a controller icon.

2.In the right panel of the MEGARAID STORAGE MANAGER window, select the OPERATIONS tab, and select SET ADJUSTABLE TASK RATES.

The task rates appear in the right panel.

3.Enter changes, as needed, to the task rates for REBUILD RATE, BACKGROUND

INITIALIZATION (BGI) Rate (for fast initialization), and CHECK CONSISTENCY RATE (for consistency checks).

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SUPER MICRO Computer AOCS2308LL8E user manual Changing Adjustable Task Rates
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AOCS2308LL8E specifications

Supermicro, a renowned leader in high-performance computing solutions, has introduced the AOC-S2308LL8E, a powerful SAS (Serial Attached SCSI) controller card designed to enhance storage performance and capability in enterprise systems. This cutting-edge controller provides exceptional functionality for organizations looking to handle large volumes of data efficiently.

The AOC-S2308LL8E features the LSI SAS2308 dual-core processor, which supports 12Gb/s data transfer rates, ensuring swift and reliable connections to storage devices. With its eight internal SAS/SATA ports, this controller card facilitates the connection of multiple drives, allowing for increased data throughput and redundancy, which are essential for critical applications such as database management and virtualization.

One of the standout characteristics of the AOC-S2308LL8E is its compatibility with both SAS and SATA drives. This flexibility allows organizations to choose between high-performance SAS drives or more economical SATA drives based on their specific storage requirements. The controller supports a wide array of RAID levels, including RAID 0, 1, 5, 6, 10, 50, and 60, providing users with the ability to select configurations that enhance data integrity and availability.

Additionally, the card is designed with an advanced cache memory that optimizes data access times, further enhancing overall performance. The AOC-S2308LL8E also features a low-profile form factor, making it suitable for various server chassis configurations, even in space-constrained environments.

In terms of connectivity, the AOC-S2308LL8E is equipped with dual mini-SAS connectors, enabling seamless connectivity to multiple storage devices. With support for a high number of simultaneous I/O operations, this controller card is well-suited for tasks requiring substantial bandwidth, like large-scale data processing and analytics.

Moreover, Supermicro's AOC-S2308LL8E comes with robust management and monitoring features, ensuring that users can maintain optimal performance levels while responding proactively to any potential issues. Built-in support for advanced error recovery techniques helps guarantee data integrity, a feature critical in any enterprise setting.

To summarize, the Supermicro AOC-S2308LL8E is an ideal solution for businesses looking to enhance their storage capabilities. With its combination of high data transfer rates, RAID support, compatibility with various storage drive types, and advanced management features, the AOC-S2308LL8E stands out as a reliable choice for maximizing performance in demanding environments. Organizations investing in this controller will benefit from its efficiency, reliability, and scalability, crucial for future-proofing their IT infrastructure.
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