1. DAC-FF The Ultimate Fibre-to-Fibre Channel External RAID Controller Solution for High Performance Servers, Clusters, and Storage Area Networks (SAN)

2. 2 PP250299.ppt Commodity PC Market (Including Mobile) PC based Workstations Performance Desktop PCs Target Intel Markets Entry Level Servers AcceleRAID ™ 200 eXtremeRAID-1100 DACPJ DACPG AcceleRAID ™ 250 DAC-FF DAC-FL DAC-SF DAC-SX AcceleRAID ™ 150 Mid Range Enterprise Servers

3. 3 PP250299.ppt DAC-FF - Technology 2 Fibre Channels to Host 4 Fibre Channels to Drives 100MHz RISC Processor 256MB ECC Cache

4. 4 PP250299.ppt Technology  Fibre Technology  Fibre Channel Host connectivity  Data Transfer rates of 100MB/s per channel over a 30 Meter serial link  Distances of several kilometers via Fibre Hubs and switches  Fibre Channel Drive connectivity  4 Channels for up to 500 drives; storage: 25.0 Terabytes  Guaranteed Performance  Dedicated XOR/ Cache controller  Up to 256 MB ECC protected User Data Cache  Burst Cache Transfer rate: over 190 MB/s  Proven system architecture  RISC processor -- 100 MHz i960RN  Common Management software

5. 5 PP250299.ppt Architecture PCI Bus 0 32 - 256 MB SDRAM i960 RISC Processor FC IOP FC IOP FC IOP North Bay FC IOP 16 MB DRAM FC IOP FC IOP PCI Bus 1

6. 6 PP250299.ppt Hardware  RISC Processors (i960RN 100MHz)  Firmware: 2MB Flash EEPROM  Up to 256 MB ECC Data Cache  Dual 64 bit PCI Bus design  5 1/4” form factor  2 Copper FC-AL host channels  Burst cache transfer rates: Over 190 MB/s  4 Fibre Channel drive channels  Up to 125 devices per Fibre channel - 500 devices per controller  Up to 25.0TB (Seagate 50GB drives) capacity per controller DAC-FF:

7. 7 PP250299.ppt Board 256 MB ECC cache RISC Processors (i960RN) XOR engine 4 FC-AL channels ( to Drives) 2 FC-AL channels ( to Host) DACFF

8. 8 PP250299.ppt  RAID 0, 1, 0+1, 3, 5, 10, 30, 50 and JBOD  Write Through and Write back or read-ahead support  Active/Active ----- Failover/Failback for High Availability  Variable Stripe size per controller  Variable Cache Line size per controller  Mirrored Cache for Data Integrity  Clustering Support  Windows NT, UNIX, SCO UNIX, NetWare  Designed to fit in an Industry standard 5 1/4” half-height form factor DAC-FF Features

9. 9 PP250299.ppt Advanced RAID Features  Fault Tolerance:  Automatic detection of Failed drives  Automatic and transparent re-build of replacement drive  On-line RAID expansion  Hot Spare drive support  Hot Drive Swapping support  SAF-TE and SES enclosure management  RAID configuration stored on disk and NVRAM  Add a LUN; Expand a LUN DAC-FF

10. 10 PP250299.ppt Simplex Performance and Capacity  Performance SXSF FLFF Burst IO’s Per Second 1,800 4,100 4,100 5,800 Burst (cache) Bandwidth (MB/s) 45 97 97190 Sustained (disk) Bandwidth (MB/s) 30 52 52190 Note: Sequential read performance, small blocks, no coalescing driver.  Storage SXSF FL FF Disks75* 90 60500** Terabytes (9 GB)7.8.5 4.5 Terabytes (18 GB)1.41.61.0 9.0 * Single host channel ** Single ported disks

11. 11 PP250299.ppt Performance  Sustained transfers to Disk  RAID 5 Reads190MB/s  RAID 5 Writes150MB/s  Burst Cache Transfer rates  Reads190MB/s  Writes190MB/s DAC-FF

12. 12 PP250299.ppt Global Array Manager ™ (GAM)  Network Security Levels  Guest Access  Admin Access  Online capacity expansion  Remote Instrumentation  DMI  SNMP  SMART Support  Wizard Configuration  Flash upgradable F/W  OS-Independent Server API  Performance Monitoring  Controller Statistics  Drive Statistics  Historical Statistics

13. 13 PP250299.ppt Benefits  Unparalleled Performance  RISC Processors--i960RN 100MHz  Fibre Channel to host interface at 100MB/s per channel  Fibre Channel to drive interface at 100MB/s per channel  Mylex Firmware + Software  Flexible Storage & Fault Tolerance  Feature rich RAID  NT and Unix Clustering  Storage Area Networks (SAN)  Mirrored Cache  RAID expansion (M.O.R.E. ™ 1)  Configuration & Remote Management  Global Array Manager ™ (GAM)  Client Server GUI  Create, Manage, Expand and Monitor

14. 14 PP250299.ppt Target Applications  Designed for $30K to $200K servers  Departmental to Enterprise NT Servers  Low-end to Mid-Range UNIX Systems  3,000 to 30,000 IO’s per second  10’s of GB’s to 10’s of TB’s  Designed for Clusters  NT (Microsoft Cluster Server), NetWare ORION and UNIX clusters  Support for Storage Area Networks (SAN)  Active / Active Duplex Configurations  Concurrently operation--> performance  Transparent failover / failback --> non-stop operation  Mirrored cache architecture --> guaranteed data integrity

15. 15 PP250299.ppt Controller 0 Reserved Controller 1 Reserved Active Active /Active -- Fibre Interconnect  Concurrent I/O Services from single or multiple servers to dual controllers increase performance  Controller failover requires dual host ports  Fibre silicon does not support multiple port addresses

16. 16 PP250299.ppt Failover -- Fibre Interconnect  With multiple host ports, when a controller fails failover is initiated  Reserved port of the surviving controller assumes port ID of the active port on the failed controller Controller 0 Reserved Controller 1 Reserved Active

17. 17 PP250299.ppt Failback -- Fibre Interconnect  When the failed controller is replaced, port ID from the reserved port on the surviving controller is transparently returned to the active port on the new controller  Active / Active operation is resumed Controller 0 Reserved Controller 1 Reserved Active

18. 18 PP250299.ppt FC HBA Scaleable Fault Tolerant Configurations FC Hub Controller 0 ActiveReserved FC HBA Controller 1 ActiveReserved Controller 3 ActiveReserved Controller 2 ActiveReserved

19. 19 PP250299.ppt Wolfpack-II Parallel Application Computing FC Switch Controller 0 ActiveReserved FC HBA Controller 1 ActiveReserved Controller 3 ActiveReserved Controller 2 ActiveReserved FC HBA

20. 20 PP250299.ppt Parallel App Clusters - Wolfpack-II  N-Node, Switched Fibre, N-FF’s Arrays, FCAL to Disk FC Switch FF Controller 1 Port 0 Active Port 1 Active FF Controller 0 Port 0 Active Port 1 Active FC HBA FF Controller 1 Port 0 Active Port 1 Active FF Controller 0 Port 0 Active Port 1 Active FC HBA