Advertisement
QuickSpecs
Standard Features
Fault Recovery
Ease of Use
HP SSD SmartPath
HP SmartCache
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.
Consistency and upgradeability on most current shipping Smart Array products make them unique in the
industry:
GUI based configuration, management and diagnostic software tools with the HP Smart Storage
Administrator
Common data format between generations of products
Data migration between servers and external Modular Smart Array enclosures
The HP SSD Smart Path feature included in the Smart Array software stack improves Solid State Disk (SSD)
read performance. 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 configuration utility available at www.hp.com/go/ssdsmartpath. 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 Server 2008
Microsoft Windows Server 2008 R2
Microsoft Windows Server 2012
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. The HP SmartCache architecture is flexible and supports any HP ProLiant Gen8
supported HDD for bulk storage and any HP ProLiant Gen8 supported SSD as an accelerator.
HP SmartCache is deployed and managed using the HP SmartStorage Administrator (HP SSA) and HP Array
Configuration Utility (HP ACU).
The basic HP SmartCache architecture is comprised of the following three elements:
Bulk storage: The first element is the bulk storage device, which is any supported HDD attached to
the HP Smart Array controller.
Accelerator: The second element, the accelerator, is a faster/lower latency SSD device that caches
data.
Metadata: The final element is metadata, information held in a relatively small storage area that
maps the location of information residing on the accelerator and bulk storage devices.
For more information please visit
DA - 14228 North America — Version 13 — September 13, 2013
www.hp.com/go/smartcache
HP Smart Array P420 Controller
Page 5
Advertisement
