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Unifosa Proware ep-2123-s6s6 User Manual

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Contents
  1. Table Of Contents
  2. SAS to SAS/SATA RAID Subsystem User Manual
  3. Table Of Contents
  4. Preface
  5. Before You Begin
  6. Unpacking the Shipping Carton
  7. Chapter 1 Product Introduction
  8. Key Features
  9. Technical Specifications
  10. RAID Concepts
  11. raid management
  12. Array Definition
  13. High Availability
  14. Chapter 2 Identifying Parts of the RAID Subsystem
  15. Disk Trays
  16. Smart Panel
  17. Rear View
  18. Controller Module
  19. Power Supply / Fan Module (PSFM)
  20. Chapter 3 Getting Started with the Subsystem
  21. Disk Drive Installation
  22. Chapter 4 RAID Configuration Utility Options
  23. Configuration through the LCD Panel
  24. Menu Diagram
  25. Configuration through web browser-based proRAID Manager
  26. Chapter 5 RAID Management
  27. RAID Set Functions
  28. Delete RAID Set
  29. Expand RAID Set
  30. Offline RAID Set
  31. Rename RAID Set
  32. Activate Incomplete RAID Set
  33. Create Hot Spare
  34. Delete Hot Spare
  35. Volume Set Function
  36. Create Raid 30/50/60
  37. Delete Volume Set
  38. Modify Volume Set
  39. Volume Set Expansion
  40. Volume Set Migration
  41. Schedule Volume Check
  42. Stop Volume Check
  43. Physical Drive
  44. Modify a Pass-Through Disk
  45. Delete Pass-Through Disk
  46. Identify Enclosure
  47. Identify Selected Drive
  48. System Controls
  49. HDD Power Management
  50. EtherNet Configuration
  51. Alert By Mail Configuration
  52. SNMP Configuration
  53. NTP Configuration
  54. View Events / Mute Beeper
  55. Generate Test Event
  56. Clear Event Buffer
  57. Modify Password
  58. Shutdown Controller
  59. Restart Controller
  60. Information Menu
  61. System Information
  62. Hardware Monitor
  63. Chapter 6 System Maintenance
  64. Appendix
  65. B. Replacing Power Supply Fan Module with Plate Cover
Unifosa Proware ep-2123-s6s6 User Manual Manual pdf 16 page image
SAS to SAS/SATA RAID Subsystem16 User ManualRAID ManagementThe subsystem can implement several different levels of RAID technology. RAID levelssupported by the subsystem are shown below.RAID Level Description Min. Drives0Block striping is provide, which yields higherperformance than with individual drives. There isno redundancy.11Drives are paired and mirrored. All data is 100%duplicated on an equivalent drive. Fullyredundant.23 Data is striped across several physical drives.Parity protection is used for data redundancy. 35 Data is striped across several physical drives.Parity protection is used for data redundancy. 36Data is striped across several physical drives.Parity protection is used for data redundancy.Requires N+2 drives to implement because oftwo-dimensional parity scheme.410 (1E)Combination of RAID levels 1 and 0. This levelprovides striping and redundancy throughmirroring. RAID 10 requires the use of an evennumber of disk drives to achieve data protection,while RAID 1E (Enhanced Mirroring) uses an oddnumber of drives.4 (3)30Combination of RAID levels 0 and 3. This level isbest implemented on two RAID 3 disk arrayswith data striped across both disk arrays.650RAID 50 provides the features of both RAID 0and RAID 5. RAID 50 includes both parity anddisk striping across multiple drives. RAID 50 isbest implemented on two RAID 5 disk arrayswith data striped across both disk arrays.660RAID 60 combines both RAID 6 and RAID 0features. Data is striped across disks as in RAID0, and it uses double distributed parity as inRAID 6. RAID 60 provides data reliability, goodoverall performance and supports larger volumesizes.RAID 60 also provides very high reliabilitybecause data is still available even if multiple diskdrives fail (two in each disk array).8
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