| Specifications | Models | ||
|
SD250-3F
4GB Fible-to-SAS RAID Subsystem |
SD250-33
SAS-to-SAS RAID Subsystem |
SD250-3
SAS-to-SAS JBOD Expander |
|
| Form-factor | 3U / 19-inch rackmount chassis | 3U / 19-inch rackmount chassis | 3U / 19-inch rackmount chassis |
| RAID Controller | Intel IOP341 I/O processor, 800MHz/64-bit | Intel IOP341 I/O processor, 800MHz/64-bit | N/A, Relies on RAID Box: SD250-3F or SD250-33 or Host base RAID |
| RAID level | 0, 1, 0+1, 3, 5, 6, 30, 50, 60, plus Hot-Spare, and JBOD | 0, 1, 0+1, 3, 5, 6, 30, 50, 60, plus Hot-Spare, and JBOD | - |
| Cache memory | 256MB ~ 2GB DDR2 SDRAM | 256MB ~ 2GB DDR2 SDRAM | - |
| Host bus interface | Two x 4Gb Fibre SFP (Dual Channels) | Two 4x mini- SAS Ports (SFF-8088) | One 4x mini- SAS Ports (SFF-8088) |
| Drive bus interface | SAS or SATA II | SAS or SATA II | SAS or SATA II |
| Capacity Expansion | One 4x mini SAS (SFF -8088) Port Currently capable of chaining up to total 4 boxes of 64 disks Working on future expansion to total of 8 boxes of 128 disks | One 4x mini SAS (SFF -8088) Port Currently capable of chaining up to total 4 boxes of 64 disks Working on future expansion to total of 8 boxes of 128 disks | One 4x mini SAS Port (SFF -8088) |
| Hot-swap drive trays | 16 x 3.5” HDD Trays | 16 x 3.5” HDD Trays | - |
| Online capacity expansion, RAID level / stripe size migration | Yes | Yes | - |
| Online Volume sets expansion | Yes | Yes | - |
| Array roaming | Yes | Yes | - |
| Online consistency check | Yes | Yes | - |
| SMTP manager and SNMP agent | Yes | Yes | - |
| E-mail Notification | Yes | Yes | - |
| Redundant Flash image | Yes | Yes | - |
| Management over LAN / Web GUI | Yes | Yes | - |
| LCD Display & Input | Yes, LCD Display with Input Button | Yes, LCD Display with Input Button | Yes, LCD Display with control button |
| Support over 2TB per volume | Yes | Yes | - |
| RAID Array Initialization | Forth-ground, Back-ground, and No Init for Volume Recovery | Forth-ground, Back-ground, and No Init for Volume Recovery | - |
| S.M.A.R.T. support | Yes | Yes | - |
| New disk insertion / removal detection | Yes | Yes | - |
| Array auto rebuild | Yes | Yes | - |
| Continuous rebuild | Yes | Yes | - |
| Multiple RAID selection | Yes | Yes | - |
| Bad block auto-scrapping & remapping | Yes | Yes | - |
| Password protection | Yes | Yes | - |
| UPS connection | Yes | Yes | - |
| SES2 enclosure management | Yes | Yes | Yes |
| Power supplies | 2 x 460W power supplies w/PFC, Redundant & Hot-Swap, AC 90V ~ 264V Full Range, 8A ~ 4A, 47Hz ~ 63Hz | 2 x 460W power supplies w/PFC, Redundant & Hot-Swap, AC 90V ~ 264V Full Range, 8A ~ 4A, 47Hz ~ 63Hz | 2 x 460W power supplies w/PFC, Redundant & Hot-Swap, AC 90V ~ 264V Full Range, 8A ~ 4A, 47Hz ~ 63Hz |
| Cooling fans | 4 | 4 | 4 |
| Battery backup | Optional 72 hours cache memory battery backup | Optional 72 hours cache memory battery backup | - |
| Physical Dimension | 133(H) x 482(W) x 600(D)mm | 133(H) x 482(W) x 600(D)mm | 133(H) x 482(W) x 600(D)mm |
| Weight (Without Disk) | 24.7kgs/54.34Lbs | 24.7kgs/54.34Lbs | 24.7kgs/54.34Lbs |