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1: Operation Procedures
• Support for global hot spares and dedicated hot spares
• Support for user-defined stripe sizes: 8, 16, 32, 64, 128, 256, 512, or 1024 KB
The RAID controller also supports the following advanced array configuration and management
capabilities:
• Online capacity expansion to add space to an existing drive or a new drive
• No reboot necessary after expansion
• Online RAID level migration, including drive migration, roaming and load balancing
• Media scan
• User-specified rebuild rates (specifying the percentage of system resources to use from 0
percent to 100 percent)
• Nonvolatile random access memory (NVRAM) of 32 KB for storing RAID system
configuration information; the MegaRAID SAS firmware is stored in flash ROM for easy
upgrade.
Non-RAID PCIe Disk Controller
At publication time, the LSI 9200-8e low-profile PCIe drive controller HBA is the default
non-RAID system disk controller for the SGI UV 2000. This drive controller has the following
features:
• Supports SATA and SAS link rates of 1.5 Gb/s, 3.0 Gb/s, and 6.0 Gb/s
• Provides two x4 external mini-SAS connectors (SFF-8088)
• The HBA has onboard Flash memory for the firmware and BIOS
• The HBA is a 6.6-in. x 2.713-in., low-profile board
• Supports eight-lane, full-duplex PCIe 2.0 performance
• The HBA has multiple status and activity LEDs and a diagnostic UART port
• A x8 PCIe slot is required for the HBA to operate within the system
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