QuickSpecs
HP Smart Array P411 Controller
Standard Features
Fault Tolerance | Keeps data available and server running while a failed drive is being replaced; several fault tolerance |
| configurations are supported including: |
| RAID 6 with ADG (Advanced Data Guarding): This is the highest level of fault tolerance. It allocates |
| two sets of parity data across drives and allows simultaneous write operations. This level of fault |
| tolerance can withstand two simultaneous drive failures without downtime or data loss. |
| RAID 6+0: Supported with min of 8 drives, but would have 4 available. Target benefit is to split RAID |
| across the external boxes |
| NOTE: RAID 6, 6+0 can be enabled with either |
| Minimum of 256 MB cache with Battery kit and Smart Array Advanced Pack License key option |
| upgrades |
| Minimum of 512 MB BBWC or FBWC and Smart Array Advanced Pack License key option |
| upgrades |
| RAID 5 (Distributed Data Guarding): This allocates one set of parity data across drives and allows |
| simultaneous write operations. This level of fault tolerance can withstand a single drive failure |
| without downtime or data loss. |
| RAID5 is available on the SA P411 with a minimum of 256MB cache |
| RAID 5+0: This is a RAID 0 array striped across 5 elements. Combines the straight |
| striping of RAID 0 with the distributed parity of RAID 5. |
| Drive Mirroring (RAID 1, 1+0): This allocates half of the drive array to data and the other half to |
| mirrored data, providing two copies of every file. It is a |
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Fault Recovery | Minimizes downtime, reconstructs data, and facilitates a quick recovery from drive failure |
| Recovery ROM: This new feature provides a unique redundancy feature that protects from a ROM |
| image corruption. A new version of firmware can be flashed to the ROM while the controller |
| maintains the last known working version of firmware. If the firmware becomes corrupt, the |
| controller will revert back to the previous version of firmware and continue operating. This reduces |
| the risk of flashing firmware to the controller. |
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| failure. If a failure occurs, recovery begins with an |
| automatically. |
| DRAM ECC corrects against single bit data and address corruption. |
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| retention. The data backup duration could be extended anytime the server's auxiliary power is |
| available during system power down. |
| Flash Backed Write Cache upgrade provides indefinite data retention. |
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Ease of Use | Consistency and Upgradeability make the Smart Array family unique in the industry: |
| GUI based configuration, management and diagnostic software tools |
| Common data format between generations of products |
| Data migration between servers and external HP Modular Smart Array enclosures and HP Disk |
| Enclosures |
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DA - 13202 Worldwide — Version 25 — November 1, 2013 | Page 6 |