


The Dell fPERC 10 H745 12Gb SAS 4GB RAID Controller delivers enterprise-grade storage management with high-speed 12Gb/s SAS and multiple SATA compatibility. Connecting through dual 2x8 external ports and utilizing PCI-e 3.0, it ensures rapid, reliable data transfer for large-scale storage needs.
Equipped with 4 GB of non-volatile cache and flash-backed protection, the H745 supports a wide range of RAID levels, including 0, 1, 5, 6, 10, 50, and 60. With the ability to manage up to 240 drives, it provides robust scalability and data security for demanding enterprise storage deployments.
Summary of RAID levels Following is a list of the RAID levels supported by the PERC 12 series of cards:
Uses disk striping to provide high data throughput, especially for large files in an environment that requires no data redundancy.
Uses disk mirroring so that data written to one physical disk is simultaneously written to another physical disk. RAID 1 is good for small databases or other applications that require small capacity and complete data redundancy.
Uses disk striping and parity data across all physical disks (distributed parity) to provide high data throughput and data redundancy, especially for small random access.
Is an extension of RAID 5 and uses an additional parity block. RAID 6 uses block-level striping with two parity blocks distributed across all member disks. RAID 6 provides protection against double disk failures, and failures while a single disk is rebuilding. If you are using only one array, deploying RAID 6 is more effective than deploying a hot spare disk.
Is a combination of RAID 0 and RAID 1, uses disk striping across mirrored disks. It provides high data throughput and complete data redundancy.
Is a combination of RAID 0 and RAID 5 where a RAID 0 array is striped across RAID 5 elements. RAID 50 requires at least six disks.
Is a combination of RAID 0 and RAID 6 where a RAID 0 array is striped across RAID 6 elements. RAID 60 requires at least eight disks.
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| Models | Drive Types | PCI Support | SAS Connectors | Cache Memory | Write Back Cache | RAID Levels | Max Drive Support | RAID Support |
|---|---|---|---|---|---|---|---|---|
| H840 Adapter FH | 12 Gb/s SAS 6 Gb/s SATA |
PCIe 3.1 | 2x4 External | 8 GB NV | Flash Backed Cache | 0,1,5,6,10,50,60 | 255 | Hardware |
| H840 Adapter LP | ||||||||
| H745P MX Adapter | 12 Gb/s SAS 6 Gb/s SATA/SAS 3 Gb/s SATA |
PCIe 3 | Modular Enclosure | 8 GB NV | Flash Backed Cache | 0,1,5,6,10,50,60 | - | Hardware |
| H740P FH | 12 Gb/s SAS 6 Gb/s SATA |
PCIe 3.1 | 2x4 External | 8 GB NV | Flash Backed Cache | 0,1,5,6,10,50,60 | 32 | Hardware |
| H740P LP | ||||||||
| H740P Mini Mono | 12 Gb/s SAS 6 Gb/s SATA |
PCIe 3.1 | 2x4 External | 8 GB NV | Flash Backed Cache | 0,1,5,6,10,50,60 | 32 | Hardware |
| S150 Software RAID | 6 Gb/s SATA/NVMe | PCIe | N/A | No Cache | No Cache | 0,1,5,10 | 30* | Software RAID Windows and Linux |
| S140 Software RAID | 6 Gb/s SATA/NVMe | N/A | N/A | No Cache | No Cache | 0,1,5,10 | 16* | Software RAID Windows and Linux |
| 12 Gbps SAS Ext. HBA | 12 Gb/s SAS | PCIe 3.0 | 2x4 External | No Cache | No Cache | No RAID Pass-Thru Only | 255 | No RAID Pass-Thru Only |
| H745 Adapter | 12 Gb/s SAS 6 Gb/s SATA/SAS 3 Gb/s SATA |
PCIe 3 | 2x8 Internal | 4 GB NV | Flash Backed Cache | 0,1,5,6,10,50,60 | 240 | Hardware |
| H745 Front | 12 Gb/s SAS 6 Gb/s SATA/SAS 3 Gb/s SATA |
PCIe 3 | 2x8 Internal | 4 GB NV | Flash Backed Cache | 0,1,5,6,10,50,60 | 240 | Hardware |
| H345 FH | 12 Gb/s SAS 6 Gb/s SATA/SAS 3 Gb/s SATA |
PCIe 3 | 2x8 Internal | No Cache | No Cache | 0,1,10 | 63 | Hardware |
| H345 LP | ||||||||
| H345 Front | 12 Gb/s SAS 6 Gb/s SATA/SAS 3 Gb/s SATA |
PCIe 3 | 2x8 Internal | No Cache | No Cache | 0,1,10 | 63 | Hardware |
| *The S150 controller supports up to 8 SATA disks (HDD and SSD) depending on system backplane configuration, supports up to 30 NVMe PCIe SSDs. | ||||||||
| *The S140 controller supports up to 16 physical disks (SATA + NVMe) depending on system backplane configuration except the PowerEdge R840 and PowerEdge R940xa supports up to 30 (SATA + NVMe). | ||||||||