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• Automatic rebuild function of failed hard drives
• Automatic error detection and correction of parity errors, bad blocks,
etc.
• Automatic remapping of sectors to recover defective media and
correct data errors
2.2.4 SCSI Performance Enhancement
• High performance SCSI interface provides faster data transfers up to
40MB/sec (Ultra Wide) per channel
• Tagged-command queing to the host allows up to 64 simultaneous
data requests to be processed
• Cache write policy and variable stripe width may be defined by the
user
• Enhanced SCSI bus performance
2.2.5 Systems Performance Monitoring
• Built-in controller and drive fault monitoring diagnostics
• Critical condition notification via status messages and alarms
• Backup power supply option in case of power interruption
2.3 Components of the Controller Unit
The important components of the controller unit includes the following:
• 486DX processor
• DRAM cache memory
• SCSI and I/O subsystems
• Memory subsystem
• Modem and monitor I/O subsystem
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