Accusys ExaRAID GUI - Manual (Page 29)

Introduction
1-4
• Support intelligent disk I/O scheduling
• Selective performance profile: AV streaming, Max IOPS, and Max
throughput
• RAID Reconfiguration Utilities
• Online disk group expansion
• Online RAID level migration
• Online stripe size migration
• Online simultaneous execution of the operations above
• Online disk group defragmentation for free space consolidation
• Online simultaneous disk group expansion and defragmentation
• Online logical disk capacity expansion
• Online logical disk capacity shrink
• Support rebuild-first policy for early recovery from RAID degradation
• Data Integrity Maintenance Utilities
• Online logical disk parity regeneration
• Online disk scrubbing (a.k.a. media scan or patrol read)
• Online parity check and recovery
• Online disk cloning and replacement, with automatic resuming cloning
• Support skipping cloned sectors when rebuilding partially cloned disks
• Background Task Management
• Background task progress monitoring
• Support one-time or periodic scheduling of maintenance tasks
• Support priority control for different types of background tasks, like
rebuilding
• Support manual abort background tasks
• Support background task roaming
• Support automatic resuming tasks when the system restarts
• Support early notification of task completion
• Array Roaming and Recovery
• Support Configuration on disk (COD) with unique ID for each disk drive
• Support drive traveling
• Support online and offline array roaming
• Support automatic and manual roaming conflict resolution