| model | 
    STEX8654 | 
  
  
    | Features | 
  
  
    | Controller Configuration | 
    Four internal SAS/SATA ports at 3Gb/s   
      Four external SAS/SATA ports at 3Gb/s — One SAS SFF-8088 connector — One SAS   SFF-8087 connector   
      1.2Ghz Intel 81348 XScale I/O processor   
      Onboard 512MB ECC DDR II memory | 
  
  
    Hardware  
      Features | 
    • PCI-Express x8 host bus interface  
      • Hardware XOR engine to offload   parity calculation  
      • Hardware RAID 6 accelerator  
      • Low-profile MD2 form   factor  
      • Optional on-board battery backup unit for data retention up to 72   hours | 
  
  
    | Supported RAID Levels | 
    • RAID 0 – Data striped across 1-16 drives for increased performance, but no   data protection 
      • RAID 1 – Mirrored pair of drives for data protection with   increased read performance  
      • RAID 1E – Data mirroring extended to maximize   balanced performance. Allows odd number drive mirroring  
      • RAID 5 – Striped   parity on 3-16 drives, ultimate data protection, capacity and performance   balance  
      • RAID 6 – Double parity for maximum data protection on 4-16 drives;   allows double drive failures without downtime    or data loss  
      • RAID 10 –   Mirrored pair of RAID 0 for double drive failure protection; can be split into   two RAID 0 sets  
      • RAID 50 – Striped multiple RAID 5 sets to improve   performance and provide additional data protection  
      • RAID 60 – Striped   multiple RAID 6 sets to allow multiple drive failures to achieve high-data   availability | 
  
  
    | RAID Fault Tolerance and Robustness   Features | 
    • Multiple logical drive support enables combining different RAID levels on   one set of disks 
      • Read Check table to avoid data read errors  
      •   PerfectRAID™ technology for error handling and recovery of fatal, media and disk   errors 
      • Support hot swap of failed drives and hot spares  
      •   Automatic/Manual rebuild of hot spare drive  
      • Background initialization for   instant drive availability  
      • Supports bad sector remapping  
      • Variable   stripe block size support to meet various application requirements 
      •   Synchronization can be scheduled periodically for RAID data   consistency | 
  
  
    | Web-based Promise Array Manager | 
    • Creates, deletes, expands, and converts disk arrays remotely  
      • Media   Patrol and Redundancy Check scheduling  
      • Monitors drive, array, and   enclosure status and provides online event logging  
      • Email notification of   drive, array, controller or enclosure events  
      (e.g. error or degrade   conditions) 
      • Remote management based on industry standard CIM/WBEM  
      •   Interface displays in 10 languages  
      • CLI support  
      • Remote firmware   update | 
  
  
    | Operating System Support | 
    • Microsoft Windows Vista, 2000, XP, Windows Server 2003  
      • Red Hat   Linux, SuSE Linux, Miracle Linux, Fedora Core, Linux open source driver   (32/64-bit)  
      • FreeBSD, VMware 3.0.1/3.0.2 | 
  
  
    | Platform Support | 
    • Intel IA32, EM64T, and AMD64 | 
  
  
    | SuperBuild™ BIOS | 
    • Array configuration utility at the BIOS level  
      • BIOS Boot   specification support: boot system from any array  
      • Flash-upgradeable BIOS   for future upgrades | 
  
  
    | Enclosure Management | 
    • SES-2  
      • SGPIO  
      • I2C | 
  
  
    | Cable in Kit | 
    STEX8654  
      One 0.5-meter multi-lane cable 
      (SFF-8087 to   SFF-8087) | 
  
  
    | Operating Temperature | 
    0 to 50°C (40°C w/ BBU)  
      Relative humidity: 5%-95%   non-condensing | 
  
  
    | Physical Dimensions | 
    16.7 cm x 6.8 cm (6.6” x 2.7”) | 
  
  
    | Agency Certifications | 
    UL, cUL, CE, FCC Class B, BSMI, VCCI, MIC, C-tick |