Fault Prevention
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 component before 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.
Environment Tracking for External Storage System: Monitors fan speed and cabinet temperature of
Modular Smart Array Enclosures.
Fault Recovery
Minimizes downtime, reconstructs data, and facilitates a quick recovery from drive failure
Recovery ROM: This feature provides unique redundancy 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.
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 corrects against single bit data and address corruption.
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 Modular Smart Array enclosures
HP SSD SmartPath
The HP SSD Smart Path feature included in the Smart Array software stack improves Solid State Disk (SSD)
read performance. The Smart Array driver chooses the optimum path to access each SSD. With up to 4x
better SSD read performance, HP SSD Smart path chooses the optimum path to the SSD and accelerates
reads for all RAID levels and RAID 0 writes. HP SSD Smart Path Requires updated firmware, drivers, and
configurable utility available here:
www.hp.com/go/HPSSDSmartPath
. HP SSD Smart Path is ideal for read
intensive workloads and is included as a base feature on HP Smart Array P-series controllers. The
following operating systems are supported by the HP SSD Smart Path feature
Microsoft Windows 2008 Server
Microsoft Windows 2008 R2 Server
Microsoft Windows 2012 Server
HP SmartCache
The HP SmartCache licensed feature is a controller-based read caching solution in a DAS environment that
caches the most frequently accessed data ("hot" data) onto lower latency SSDs to dynamically accelerate
application workloads. HP SmartCache is supported on HP ProLiant Gen8 servers with one of the following
controllers: P420i, P420, P421, P822 and P721m. HP SmartCache is an included feature on the P822 and
QuickSpecs
HP Smart Array P822 Controller
Standard Features
DA - 14341 North America — Version 11 — September 10, 2013
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