Product manual

VessRAID 1000s Series Product Manual
4
Three years complete system limited warranty includes 24 x 7 email and
phone support with highly experienced technical support technicians and an
advanced replacements program.
Support for the latest RAID technology—RAID 6—Protection from a
catastrophic double-drive failure.
Resilient data protection features such as Predictive Data Migration™ and
PerfectRAID™ provide rock solid data protection.
LUN Mapping and Masking bring flexibility for multiple application and OS
support on the same storage subsystem.
Open architecture, industry’s most comprehensive support for SAS and
SATA hard drives and standards-based management interfaces including
SNMP and WBEM.
Support for the industry standard Disk Data Format (DDF from SNIA)
ensures interoperability and drive roaming even among different RAID
vendors.
Compatible with leading SAS hard drives, host bus adapters, and RAID
controllers.
Subsystem and Controller Features
Drive Support: Up to 16 3.5" x 1" SAS or SATA 3 Gb/s hard disk drives.
Supports any combination of SAS and SATA drives in the system.
Staggered physical drive spin-up.
External I/O Ports: Dual 3 Gb/s SAS x4 host ports; One external 3 Gb/s SAS
x4 port for JBOD expansion.
Data Cache: Shared 512 MB predictive data cache (expandable to 2 GB);
Automatic write cache destaging; optional 72-hour battery backup (for 512
MB cache).
Command Queue Depth: 1024 commands per VessRAID.
Operational Features
RAID Levels: RAID 0, 1, 1E, 5, 6, 10, 50, and 60 – Any combination of these
RAID levels can exist at the same time.
Configurable RAID stripe size: 64 KB, 128 KB, 256 KB, 512 KB, and 1 MB
stripe size per logical drive.
Background task priority tuning: Adjustment of minimum I/O reserved for
server use during all background tasks.
Hot spares: Multiple global or dedicated hot-spare drives with revert option.
Maximum LUNs per subsystem: 256 in any combination of RAID levels.