NEC SA2500, Руководство пользователя, Страница: 62 / 253

User Guide
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Read Check table to avoid data read errors
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Support hot swap of failed drives and hot spare
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Automatic/manual rebuild of hot spare drive
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Background initialization for instant drive availability
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Background rebuild, migration and synchronization
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Error and event logging
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Variable stripe block size support to meet various application requirements
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Optimal disk utilization with gigabyte rounding
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Support for SMART capable drives
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Synchronization can be scheduled periodically for RAID array data consistency
Advanced Performance Features
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Multiple caching policy support:
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Write-back:
- Write-back cache for maximum write performance
- Write-through: Write-through cache for data protection in the event of applica-
tion freeze
- Read ahead: Predictive read ahead caching based on application and data types
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Packet commands and interrupt coalescing minimize interrupts for better
performance
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Elevator seek streamlines commands based on where data is located on the disk
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Load balancing (mirrored RAID array only)
- Web-Based Promise Array Management
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Creates, deletes, expands, and converts disk arrays remotely
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Array synchronization and rebuild scheduling
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Monitors drive, array, and enclosure status and provides online event logging
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E-mail notification of disk, array, controller or enclosure events (e.g. error or
degrade conditions)