HP Smart Array P440ar Controller
c04346299 – DA – 15039 Worldwide — Version 1 — September 9, 2014
failure without downtime or data loss.
RAID 50: Supported with a minimum of 6 drives. This volume is composed of two or more RAID
5 sub-volumes (parity groups) where data is striped across each parity group as if it were a
single physical drive. Each RAID 5 parity group can sustain a single drive failure without
incurring data loss.
RAID 1 & 10 (Drive Mirroring): Supported with a minimum of 2 drives. This allocates half of the
drive array to the data and the other half to the mirrored data, providing two copies of the
data.
RAID 1 ADM & 10 ADM (Advanced Data Mirroring): Supported with a minimum of 3 drives. RAID
1 ADM creates redundant copies of the data using 3 drives. RAID 10 ADM stripes data across
two or more sets of RAID 1 ADM volumes. This level of fault tolerance can withstand a double
drive failure within a RAID 1 ADM volume without downtime or data loss.
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
Consistency and upgradeability on most 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 HP Modular Smart Array enclosures and Disk
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/hpssa.
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
Red Hat Enterprise Linux 6.1, 6.2, 6.3, 6.4, and 6.5
SUSE Linux Enterprise Server 11 (SP1, SP2, SPA)
VMware ESXi 5.0 U3
VMware vSphere 5.1 U2 and vSphere 5.5
The HP SmartCache 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 Gen9 supported HDD for bulk storage and any HP ProLiant Gen9 supported SSD as an
accelerator.
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