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Performance
HeritageRAID-AT’s high performance comes from its 64-bit PowerPC RISC CPU and proprietary hardware XOR ASIC. The 64-bit bus bandwidth at 66MHz between SDRAM
and CPU makes its high data throughput more than sufficient for small-to-medium sized servers or workstations. Data can be distributed through a high-speed 64-bit path at a burst rate up to 533MB/sec.
The system's overall performance reaches up to 100MB/second (sustained reads, Ultra160 SCSI model). The two independent PCI bus design efficiently eliminates bandwidth bottlenecks for I/O traffic.
Balanced bus loading and a user-friendly design make it an optimal RAID solution for a wide range of SCSI-based servers, single-user workstations, or NAS Engines.
Reliability and Data Availability
HeritageRAID-AT provides high data availability with support for RAID levels 0, 1 (0+1), 3 and 5. RAID configurations can be managed either through the
LCD control panel or by the system-embedded configuration utilities.
Other features such as hot swappable drives, hot spares, automatic drive failure detection, automatic failed drive rebuilding, and redundant load sharing power supplies and cooling fans ensure that your data is available in the event of a component failure.
Manageability
Configuration and monitoring of HeritageRAID-AT system can be done via the LCD control panel, RS-232 terminal session, or the RAIDGuide Java-based GUI.
RAIDGuide Manager
RAIDGuide is an easy-to-use,
Java-based GUI RAID management software application.
Operating under Java 2.0 (Java Run-time Environment 1.2 or 1.3), RAIDGuide provides a complete management interface to the RAID system and a constant real-time report of the current RAID status, errors, events, and capacity.
RAIDGuide 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. RAIDGuide 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, fax, and/or pager.
Enclosure Fault Management
The HeritageRAID-AT system can monitor the operating status of enclosure components, including that of fans, power supplies, and disk drives.
Component failures are locally indicated on the LCD control panel, by the sounding alarm, or through the RAIDGuide manager software. The RAIDGuide’s sub-module, NPC, can be used to notify system administrators remotely via e-mail, pager, fax, SNMP traps, or LAN broadcast.
Bad Block Handling
HeritageRAID-AT supports Bad Block Scrubbing and Bad Block Handling in degrade mode to prevent data loss in the unlikely event of hard drive failure causing bad
blocks on two separate drives. The Bad Block Scrub can be performed regularly to examine drives and data can be reconstructed onto good sectors if the controller finds any bad blocks during the process.
If bad blocks are encountered on yet another drive during the rebuild process, the block LBA (Logical Block Address) will be indicated and the rebuild process can be continued with the unaffected sectors, salvaging most of the data.
Configuration & Capacity
HeritageRAID-AT systems feature up to 12 hot swappable Ultra ATA drives for capacities ranging up to 3 TB. The dedicated RAID controller with up
to 256 MB cache handles all RAID functions. Tower or rack configurations are available with Ultra160 SCSI or 1 to 2 Gb Fibre Channel host interfaces.
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