SAS

The SANBlaze VirtuaLUN SAS (Serial attached SCSI) target emulation system delivers an extremely cost effective approach to SAS device testing. The VirtuaLUN emulates SAS Disk Drives for read/write performance testing environments, with no initiator side software changes required.  SAS features include:

Hardware:

• SAS Ports or Phys: 8 or 12 SAS Ports running at 1.5 or 3 Gbps
• Auto Link Speed and Auto Topology Negotiation
• Two Port Configurations Options:
  Narrow Mode: 1 Target Per Phy, 60 LUNs per Target
  Wide Mode: 1 Target Per Initiator, 60 LUNs per Target

Software Features:

• Port
  • Port Status
  • Display, Clear, Define Interval of Port Statistics
  • Port Configuration
  • Set State, Topology, Speed and number of targets
  • Port statistics and Real time performance
    
    
• Target
  • Edit Inquiry Stream
  • Tape Emulation
    
    
• LUN
  • Variable Size – Up to 4 TByte
  • 2 Memory configuration options
  • Zero, fixed or variable latency
  • Error Conditions    
  • Save/Restore Data files to LUN
  • Seed a Binary or Data File or Pattern to a LUN
  • Possible 60 LUNs per phy
  • Profiles – Use predefined or build drive or tape profiles

Error Capabilities:

• Error Injection:
  • Single or Multiple Errors per command
  • By Number of I/O’s
  • By Time
  • Error Conditions on specific LBN or CDB
    
    
• Error Conditions:
  • Bad CRC
  • Busy
  • Drop
  • QueueFull
  • CheckCond
  • Read Over/Read Under
  • WriteOver/Write Under
  • ReadDelay, WriteDelay
  • Out of order Data
  • Data Corruption

Enhanced Command Features:

• 6/10/12/16 byte CDB
• CDB Histogram – Logging of command frames
• Persistent Reservations
• Reserve and Release
• User Definable Mode, Diagnostic and Custom  Inquiry Pages
• Selectable Queue depth
• Variable Block Size (512 or 520 Byte)