HeritageRAID-2S provides the latest storage technology in a simple and affordable package.  By delivering high capacity, reliability, data availability, and bandwidth in SAS, SATA and SSD disk configurations, HeritageRAID-2S meets the exploding data storage needs of today's IT departments.

HeritageRAID-2S systems feature 4 Gb Fibre Channel, 8 Gb Fibre Channel, SAS, Ultra320 SCSI, Gigabit iSCSI, or 10 Gigabit iSCSI host interfaces and attach directly to servers, networks, NAS engines or SANs where performance, reliability, scalability, and low cost is critical.

Performance
Equipped with dual 64-bit RISC processors, up to 4 GB cache per controller and a sixth-generation 800 MHz data bus architecture, the G6 version of the HeritageRAID-2S is designed for performance-critical applications and environments. A 40 drive configuration, (24-bay HeritageRAID-2S and one 16-bay JBOD) with dual controllers, four 8 Gb/s FC host channels, with 10 SAS 15k rpm drives per channel delivers sustained reads of up to 2500 MB/s and sustained writes of up to 1150 MB/s in a RAID-5 configuration. A dual controller iSCSI-SAS system with one JBOD (32 drives total) can achieve 700 MB/s reads and 320 MB/s writes in a RAID-5 configuration through 8 host ports.

Reliability and Data Availability
HeritageRAID-2S provides high data availability with support for RAID levels 0, 1, (0+1), 3, 5, 6, 10, 30, 50, & 60.  RAID 6 improves fault tolerance by implementing two parity drives. Other features such as dual active-active or active-passive controllers, controller failback, Cache-Safe Technology, battery backup option, hot swappable drives, global, dedicated & enclosure specific hot spares, automatic drive failure detection, automatic background rebuild, and redundant load sharing power supplies and cooling fans ensure that your data is available in the event of a component failure. All field replaceable components are hot-pluggable.

Smart Technologies
The Innovative firmware design of the HeritageRAID-2S features intelligent drive technology that enhances I/O processing, drive handling, and system management.

IOSmart
IOSmart allows for the flexible configuration of logical drives, logical volumes and logical partitions and ensures instant RAID availability via background logical drive initialization. The firmware’s embedded intelligent algorithms, such as Adaptive Write Policy and Guaranteed Latency I/O, improve the performance of sequential write applications and ensure the fast and continuous flow of data.

DrvSmart
The DrvSmart utility provides an easy way to store data while keeping it safe. One of the main DrvSmart functions, Media Scan, retrieves data from degraded or damaged hard drives and handles low quality drives in both the degraded mode and during the rebuild process. Other DrvSmart features include disk cloning, drive roaming, SMART, transparent resetting of non-responsive hard drives, and RAID parity update tracking and recovery.

SysSmart
In addition to RAID protection for the disk drives, HeritageRAID-2S features Auto Data Protection Mechanisms. These special SysSmart firmware functions ensure data safety by automatically switching to write-through data caching when abnormal subsystem conditions are detected such as a PSU/cooling module failure, low BBU or UPS battery charge, etc. By using the firmware to monitor and control the enclosure's dual-speed fans, the fan rotation speed is raised to a higher level when critical conditions are detected, e.g., a PSU or fan failure. Fan speed returns to the lower setting when normal operating status is restored. The system can be monitored by variety of ways. I2C internal serial bus, SAF-TE, and SES are seamlessly integrated into the comprehensive Java-based GUI RAIDWatch Manager. Component status, voltage and temperature readings, and system events are instantly revealed through the manager's graphical interface.

Enhanced Power Saving Technology
The Enhanced power-saving feature enables energy efficiency through a system power requirements reduction of as much as 65%.  Allowing users to flexibly configure power-saving levels for individual logical drives, the enhanced feature maintains applications' service levels when implementing power-management mechanism.  Depending on an application’s access frequency and ideal performance levels, users can configure the power-saving mode of their respective logical drives as level 1, level 2, or the combination of the two.  Set with level 1 mode, disks will enter idle state if they have not received I/O for a user-configured period of time.  In this state, disk drives take only one second to respond when accessed.  Set with level 2 mode, the drives enter spin-down state.  According to internal tests, although spun-down drives take longer to respond when accessed, they require less than 20% of power consumption and contribute to overall system energy savings of approximately 50% and up to 65%.  The two levels can be further combined into a two-stage procedure.  Receiving no I/O for a pre-set period of time, the disks would first become idle then, if the no I/O status continues the disk drives will spin-down. The enhanced power-saving feature gives users the flexibility to find their own balance between storage performance and energy efficiency.

Software Features
Management and monitoring of HeritageRAID-2S systems can be performed via an RS-232 terminal session or the network-based or in-band management GUIs.

RAIDWatch Manager
Accessible via TCP/IP or in-band, RAIDWatch is an easy-to-use, Java-based GUI RAID management software application. RAIDWatch provides a complete management interface to the RAID system and a constant real-time report of the current RAID status, errors, events, and capacity.

RAIDWatch enables administrators to quickly locate and rectify problematic hardware without downtime or data loss. Many RAID controller functions, such as RAID setup, RAID expansion, password management and firmware upgrades can be handled through the software console. The info window provides information on all installed hard drives and the key elements of the RAID controller. RAIDWatch also enables administrators to monitor current cache data status and system environmental conditions such as temperature and power.

Administrators can be notified virtually anywhere of events occurred by the powerful event notification utility, NPC (Notification Processing Center). Notification takes place via e-mail, LAN broadcast, SNMP, fax, and/or pager.

SANWatch Manager
SANWatch is a Java-based management GUI that provides all functions necessary to discover, configure, administer, and monitor HeritageRAID-2S arrays.  With all the functions of RAIDWatch, SANWatch also provides management interfaces for the following modules so that all data protection and high availability features can be accessed through one interface.

1. Centralized Management Console
2. Configuration Manager
3. Storage Manager
4. Disk Performance Monitor
5. Notification Manager
6. EonPath Manager
7. Virtualization Manager

EonPath
EonPath provides multi-path I/O functionality by recognizing and managing the redundant paths to an individual RAID volume. Greater reliability is achieved through the path failover mechanism in the event of cabling component failure.  EonPath also comes with load-balancing algorithms which help accelerate the throughput across host-storage data links.  Supported functions include active-active/active-standby path redundancy, intelligent load-balancing, I/O traffic monitoring, and multiple paths to RAID volumes.

Configuration & Scalability
HeritageRAID-2S features 12, 16 or 24 hot swappable Serial ATA II or SAS drives for capacity up to 48 TB in a single enclosure (using 2 TB drives).  SAS expansion ports provide for JBOD expansion to more than 100 drives.  Mixing SATA and SAS drives in the same enclosure is supported for flexible multi-tier storage applications in one unit.  It is not recommended, however, to mix SATA and SAS drives in the same RAID set.

HeritageRAID-2S is available in two processor versions. The G5 version is powered by an 800 MHz PowerPC 750GL RISC processor, and an ASIC400 64-bit chipset with DDR cache memory.  The G6 version is powered by two RISC processors and an ASIC667 chipset with DDRII cache memory.