System information

Introduction
1-3
• 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
• Online array recovery for logical disks, disk groups, and volumes
• Storage Presentation
• Support multiple storage presentations: simple, symmetric, and selective
• Support dynamic LUN masking
• Independently-selectable access control for each host and LUN
• Independently-selectable CHS geometry and sector size for each LUN
• Support host grouping management
• Support up to 32 hosts, 16 host groups, and 32 storage groups
• Support up 1024 LUNs and 128 LUNs per storage group
• Hard Disk Management
• Support hard disk adding and removal emulation utility
• Support disk self test (DST) and disk health monitoring by SMART
• Support SMART warning-triggered disk cloning
• Support bad block over-threshold triggered disk cloning
• Support disk cache control
• Support disk auto standby when idle
• Support disk and disk group visual identification by LED
• Support disk sequential power-on
• Extensive disk I/O parameters selective for different environments
• Expansion Port Functions (model-dependent)
• Support SAS JBOD expansion units
• Support SAS SMP and SAS STP protocols
• Support external enclosure monitoring by SES
• Selective external enclosure and disk polling period