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Chapter 4: WebBIOS Configuration Utility | Creating a CacheCade Configuration
MegaRAID SAS Software User Guide
NOTE: This procedure does not create a RAID configuration. It creates an CacheCade
software virtual drive that functions as a secondary tier of cache.
Using CacheCade software as controller cache allows for very large data sets to be
present in cache, delivering performance up to 50 times greater than regular cache in
read-intensive applications, such as online transaction processing (OLTP), and file and
Web server workloads. The solution accelerates the IO performance of HDD-based
drive groups while requiring only a small investment in CacheCade software
technology.
To support full-throughput for multiple direct-attached CacheCade software, this
feature reduces I/O-processing overhead in the 2108-chip-based MegaRAID
controllers. CacheCade offers performance equivalent to flash-based controllers and
better performance for RAID 5 and RAID 6 when compared to Fusion I/O.
Follow these steps to create a CacheCade drive group.
1. Click Configuration Wizard on the WebBIOS main screen.
The first Configuration Wizard screen appears, as shown in Figure 60.
Figure 60:
WebBIOS Configuration Wizard Screen
2. Select CacheCade(TM) Configuration and click Next.
The Span Definition screen appears, as shown in Figure 60.
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LSI Corporation Confidential | September 2010