External Ports; Raid Support - Promise Technology VessRAID 1000i series Product Manual

• PMC PM8388 expander with 2 MB flash memory on 16- and 12-bay models.
• Command Queue Depth: 1024 commands per subsystem.
• Interfaces:
• WebPAM PROe, through browser and Ethernet
• CLU and CLI, through serial and Telnet
• Subsystem buzzer and LEDs

External Ports

• High-availability DAS, NAS, SAN, and cluster-friendly platforms:
• Dual 8 Gb/s FC host ports plus dual GbE iSCSI host ports
• Four GbE iSCSI host ports
• Dual 3 Gb/s SAS x4 host ports
• 3 Gb/s SAS x4 JBOD expansion port on 16- and 12-bay models.
• 10/100Mb RJ45 Ethernet management port.
• RJ11 serial port supports RS232 protocol via adapter cable.
• USB 2.0 external ports for subsystem management.

RAID Support

• Automatic, Express, and Advanced RAID configuration options.
• Supports RAID levels 0, 1, 1E, 5, 6, 10, 50, and 60
• Supports any combination of RAID levels at the same time.
• Configurable stripe sizes: 64 KB, 128 KB, 256 KB, 512 KB, and 1 MB
• Multiple global or dedicated hot-spare drives with reversion option.
• Up to 256 LUNs per subsystem.
• Up to 32 logical drives (LUNs) per disk array.
• Out-of-order logical drive deletion and re-creation.
• LUN masking and mapping.
• Extensive SCSI command set.
• 16-byte CDB for 64-bit LBA addressing.
• Predictive Data Migration (PDM) replaces un-healthy disk member in array
and maintains I/O activity during the transition.
• Hard/soft reset to recover HDD from bad status.
• Power-control to recover HDD from hung status.
• Write Hole Table to prevent RAID 5/6 inconsistent data
• Read/Write Check Table to prevent data content errors
Chapter 1: Introduction to VessRAID
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