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HP 405132-B21 Specification page 4

Pci-express (pcie) serial attached scsi (sas) raid controller
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QuickSpecs
Standard Features
Availability
Availability
Availability
Availability
Fault Prevention
Fault Prevention
Fault Prevention
Fault Prevention
Fault Tolerance
Fault Tolerance
Fault Tolerance
Fault Tolerance
Fault Recovery
Fault Recovery
Fault Recovery
Fault Recovery
Provides increased server uptime by providing advanced storage functionality:
Online RAID level migration (between any RAID level)
Online stripe size migration
Online array expansion
Online logical drive extension
Online drive firmware upgrade
Unlimited global online spare
Pre-Failure Warranty
The following features offer detection of possible failures before they occur, allowing preventive action to
be taken:
S.M.A.R.T.: Self Monitoring Analysis and Reporting Technology first developed at HP detects
possible hard disk failure before it occurs, allowing replacement of the hard drive before a real
failure occurs.
Drive Parameter Tracking monitors drive operational parameters, predicting failure and notifying
the administrator.
Dynamic Sector Repairing continually performs background surface scans on the hard disk drives
during inactive periods and automatically remaps bad sectors, ensuring data integrity.
Smart Array Cache Tracking monitors integrity of controller cache, allowing pre-failure
preventative maintenance.
Keeps data available and server running while a failed drive is being replaced; several fault tolerance
configurations are supported including:
RAID 6 with ADG
RAID 6 with ADG
RAID 6 with ADG
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 5 (Distributed Data Guarding): This allocates one set of parity data across drives and allows
RAID 5
RAID 5
RAID 5
simultaneous write operations. This level of fault tolerance can withstand a single drive failure
without downtime or data loss.
RAID 1, 1+0 (Drive Mirroring): This allocates half of the drive array to data and the other half to
RAID 1, 1+0
RAID 1, 1+0
RAID 1, 1+0
mirrored data, providing two copies of every file. It is a high-performance RAID.
Minimizes downtime, reconstructs data, and facilitates a quick recovery from drive failure
Recovery ROM: This feature protects the user from a firmware image corruption by storing a
redundant copy of the firmware image. If the active firmware image becomes corrupt, the
controller will use the redundant firmware image and continue operating.
On-Line Spares: There is no limit to the number of spare drives that can be installed prior to drive
failure. If a failure occurs, recovery begins with an On-Line Spare and data is reconstructed
automatically.
DRAM ECC detects and corrects data bit errors.
Battery-backed write cache upgrade provides for up to two days of battery power for data cache
retention. The data backup duration could be extended anytime the server's auxiliary power is
available during system power down.
DA - 12400
Worldwide — Version 32 — January 23, 2012
HP Smart Array P400 Controller
HP Smart Array P400 Controller
HP Smart Array P400 Controller
HP Smart Array P400 Controller
Page 4

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